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What are the anticipated problems of charging without using the built in charger

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  • aceomeg
    Hi All, I m considering charging only via an external charger like the NOCO Genius G7200 because it charges faster. I believe there is a 9 volt rechargeable
    Message 1 of 14 , Aug 10, 2013
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      Hi All,
      I'm considering charging only via an external charger like the NOCO Genius G7200 because it charges faster.
      I believe there is a 9 volt rechargeable battery in the mower that maybe charges off of the built in charging circuit and not from the battery. My guess would be that this battery retains settings like the anti-theft code and zone configurations when the battery is out of the unit.
      Does anyone else not use the built in charger? Is there any cause for concern in doing this?
      Thanks for the advice.
    • Tim Wolff
      What model mower? I don t know of an internal battery in my 800 and 850s. I ve been charging the batteries outside the mower for years w/o issue. I run leads
      Message 2 of 14 , Aug 10, 2013
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        What model mower?
        I don't know of an internal battery in my 800 and 850s.
        I've been charging the batteries outside the mower for years w/o issue. I run leads for each of the batteries in the pack out the "handle" opening and charge each battery in the pack separately.
        Tim

        > To: RoboMower@yahoogroups.com
        > From: aceomeg@...
        > Date: Sat, 10 Aug 2013 17:22:16 +0000
        > Subject: [RoboMower] What are the anticipated problems of charging without using the built in charger
        >
        > Hi All,
        > I'm considering charging only via an external charger like the NOCO Genius G7200 because it charges faster.
        > I believe there is a 9 volt rechargeable battery in the mower that maybe charges off of the built in charging circuit and not from the battery. My guess would be that this battery retains settings like the anti-theft code and zone configurations when the battery is out of the unit.
        > Does anyone else not use the built in charger? Is there any cause for concern in doing this?
        > Thanks for the advice.
        >



        [Non-text portions of this message have been removed]
      • Tom Stewart
        I cut the cable between the positive terminal of one batter, and the negative terminal of the other, and installed a connector. For years, I bench charged the
        Message 3 of 14 , Aug 10, 2013
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          I cut the cable between the positive terminal of one batter, and the negative terminal of the other, and installed a connector. For years, I bench charged the batteries with a 12v auto charger, on 2 amp, automatic charge rate. Simply disconnect the batteries, and charge them individually. Fast, smart, no damage.

          aceomeg <aceomeg@...> wrote:


          >
          >Hi All,
          >I'm considering charging only via an external charger like the NOCO Genius G7200 because it charges faster.
          >I believe there is a 9 volt rechargeable battery in the mower that maybe charges off of the built in charging circuit and not from the battery. My guess would be that this battery retains settings like the anti-theft code and zone configurations when the battery is out of the unit.
          >Does anyone else not use the built in charger? Is there any cause for concern in doing this?
          >Thanks for the advice.
          >
          >
          >
          ><!-- #ygrp-mkp { border: 1px solid #d8d8d8; font-family: Arial; margin: 10px 0; padding: 0 10px; } #ygrp-mkp hr { border: 1px solid #d8d8d8; } #ygrp-mkp #hd { color: #628c2a; font-size: 85%; font-weight: 700; line-height: 122%; margin: 10px 0; } #ygrp-mkp #ads { margin-bottom: 10px; } #ygrp-mkp .ad { padding: 0 0; } #ygrp-mkp .ad p { margin: 0; } #ygrp-mkp .ad a { color: #0000ff; text-decoration: none; } #ygrp-sponsor #ygrp-lc { font-family: Arial; } #ygrp-sponsor #ygrp-lc #hd { margin: 10px 0px; font-weight: 700; font-size: 78%; line-height: 122%; } #ygrp-sponsor #ygrp-lc .ad { margin-bottom: 10px; padding: 0 0; } #actions { font-family: Verdana; font-size: 11px; padding: 10px 0; } #activity { background-color: #e0ecee; float: left; font-family: Verdana; font-size: 10px; padding: 10px; } #activity span { font-weight: 700; } #activity span:first-child { text-transform: uppercase; } #activity span a { color: #5085b6; text-decoration: none; } #activity span span { color: #ff7900; } #activity span .underline { text-decoration: underline; } .attach { clear: both; display: table; font-family: Arial; font-size: 12px; padding: 10px 0; width: 400px; } .attach div a { text-decoration: none; } .attach img { border: none; padding-right: 5px; } .attach label { display: block; margin-bottom: 5px; } .attach label a { text-decoration: none; } blockquote { margin: 0 0 0 4px; } .bold { font-family: Arial; font-size: 13px; font-weight: 700; } .bold a { text-decoration: none; } dd.last p a { font-family: Verdana; font-weight: 700; } dd.last p span { margin-right: 10px; font-family: Verdana; font-weight: 700; } dd.last p span.yshortcuts { margin-right: 0; } div.attach-table div div a { text-decoration: none; } div.attach-table { width: 400px; } div.file-title a, div.file-title a:active, div.file-title a:hover, div.file-title a:visited { text-decoration: none; } div.photo-title a, div.photo-title a:active, div.photo-title a:hover, div.photo-title a:visited { text-decoration: none; } div#ygrp-mlmsg #ygrp-msg p a span.yshortcuts { font-family: Verdana; font-size: 10px; font-weight: normal; } .green { color: #628c2a; } .MsoNormal { margin: 0 0 0 0; } o { font-size: 0; } #photos div { float: left; width: 72px; } #photos div div { border: 1px solid #666666; height: 62px; overflow: hidden; width: 62px; } #photos div label { color: #666666; font-size: 10px; overflow: hidden; text-align: center; white-space: nowrap; width: 64px; } #reco-category { font-size: 77%; } #reco-desc { font-size: 77%; } .replbq { margin: 4px; } #ygrp-actbar div a:first-child { /* border-right: 0px solid #000;*/ margin-right: 2px; padding-right: 5px; } #ygrp-mlmsg { font-size: 13px; font-family: Arial, helvetica,clean, sans-serif; *font-size: small; *font: x-small; } #ygrp-mlmsg table { font-size: inherit; font: 100%; } #ygrp-mlmsg select, input, textarea { font: 99% Arial, Helvetica, clean, sans-serif; } #ygrp-mlmsg pre, code { font:115% monospace; *font-size:100%; } #ygrp-mlmsg * { line-height: 1.22em; } #ygrp-mlmsg #logo { padding-bottom: 10px; } #ygrp-msg p a { font-family: Verdana; } #ygrp-msg p#attach-count span { color: #1E66AE; font-weight: 700; } #ygrp-reco #reco-head { color: #ff7900; font-weight: 700; } #ygrp-reco { margin-bottom: 20px; padding: 0px; } #ygrp-sponsor #ov li a { font-size: 130%; text-decoration: none; } #ygrp-sponsor #ov li { font-size: 77%; list-style-type: square; padding: 6px 0; } #ygrp-sponsor #ov ul { margin: 0; padding: 0 0 0 8px; } #ygrp-text { font-family: Georgia; } #ygrp-text p { margin: 0 0 1em 0; } #ygrp-text tt { font-size: 120%; } #ygrp-vital ul li:last-child { border-right: none !important; } -->

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        • Benjamin Hill
          I am not aware of an internal rechargeable battery. I charge with external charger using 24 vdc fast charger made for mower. (Has same quick connect as
          Message 4 of 14 , Aug 11, 2013
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            I am not aware of an internal rechargeable battery. I charge with external charger using 24 vdc fast charger made for mower. (Has same quick connect as mower). My settings are held fine and I suspect they are stored in eeprom and not stored with battery internally. Not for certain on this, just suspect it to be the case.

            Ben

            On Aug 10, 2013, at 3:57 PM, "Tom Stewart" <tstewartjr@...> wrote:

            > I cut the cable between the positive terminal of one batter, and the negative terminal of the other, and installed a connector. For years, I bench charged the batteries with a 12v auto charger, on 2 amp, automatic charge rate. Simply disconnect the batteries, and charge them individually. Fast, smart, no damage.
            >
            > aceomeg <aceomeg@...> wrote:
            >
            > >
            > >
            > >Hi All,
            > >I'm considering charging only via an external charger like the NOCO Genius G7200 because it charges faster.
            > >I believe there is a 9 volt rechargeable battery in the mower that maybe charges off of the built in charging circuit and not from the battery. My guess would be that this battery retains settings like the anti-theft code and zone configurations when the battery is out of the unit.
            > >Does anyone else not use the built in charger? Is there any cause for concern in doing this?
            > >Thanks for the advice.
            > >
            > >
            > >
            > ><!-- #ygrp-mkp { border: 1px solid #d8d8d8; font-family: Arial; margin: 10px 0; padding: 0 10px; } #ygrp-mkp hr { border: 1px solid #d8d8d8; } #ygrp-mkp #hd { color: #628c2a; font-size: 85%; font-weight: 700; line-height: 122%; margin: 10px 0; } #ygrp-mkp #ads { margin-bottom: 10px; } #ygrp-mkp .ad { padding: 0 0; } #ygrp-mkp .ad p { margin: 0; } #ygrp-mkp .ad a { color: #0000ff; text-decoration: none; } #ygrp-sponsor #ygrp-lc { font-family: Arial; } #ygrp-sponsor #ygrp-lc #hd { margin: 10px 0px; font-weight: 700; font-size: 78%; line-height: 122%; } #ygrp-sponsor #ygrp-lc .ad { margin-bottom: 10px; padding: 0 0; } #actions { font-family: Verdana; font-size: 11px; padding: 10px 0; } #activity { background-color: #e0ecee; float: left; font-family: Verdana; font-size: 10px; padding: 10px; } #activity span { font-weight: 700; } #activity span:first-child { text-transform: uppercase; } #activity span a { color: #5085b6; text-decoration: none; } #activity span span { color: #ff7900; } #activity span .underline { text-decoration: underline; } .attach { clear: both; display: table; font-family: Arial; font-size: 12px; padding: 10px 0; width: 400px; } .attach div a { text-decoration: none; } .attach img { border: none; padding-right: 5px; } .attach label { display: block; margin-bottom: 5px; } .attach label a { text-decoration: none; } blockquote { margin: 0 0 0 4px; } .bold { font-family: Arial; font-size: 13px; font-weight: 700; } .bold a { text-decoration: none; } dd.last p a { font-family: Verdana; font-weight: 700; } dd.last p span { margin-right: 10px; font-family: Verdana; font-weight: 700; } dd.last p span.yshortcuts { margin-right: 0; } div.attach-table div div a { text-decoration: none; } div.attach-table { width: 400px; } div.file-title a, div.file-title a:active, div.file-title a:hover, div.file-title a:visited { text-decoration: none; } div.photo-title a, div.photo-title a:active, div.photo-title a:hover, div.photo-title a:visited { text-decoration: none; } div#ygrp-mlmsg #ygrp-msg p a span.yshortcuts { font-family: Verdana; font-size: 10px; font-weight: normal; } .green { color: #628c2a; } .MsoNormal { margin: 0 0 0 0; } o { font-size: 0; } #photos div { float: left; width: 72px; } #photos div div { border: 1px solid #666666; height: 62px; overflow: hidden; width: 62px; } #photos div label { color: #666666; font-size: 10px; overflow: hidden; text-align: center; white-space: nowrap; width: 64px; } #reco-category { font-size: 77%; } #reco-desc { font-size: 77%; } .replbq { margin: 4px; } #ygrp-actbar div a:first-child { /* border-right: 0px solid #000;*/ margin-right: 2px; padding-right: 5px; } #ygrp-mlmsg { font-size: 13px; font-family: Arial, helvetica,clean, sans-serif; *font-size: small; *font: x-small; } #ygrp-mlmsg table { font-size: inherit; font: 100%; } #ygrp-mlmsg select, input, textarea { font: 99% Arial, Helvetica, clean, sans-serif; } #ygrp-mlmsg pre, code { font:115% monospace; *font-size:100%; } #ygrp-mlmsg * { line-height: 1.22em; } #ygrp-mlmsg #logo { padding-bottom: 10px; } #ygrp-msg p a { font-family: Verdana; } #ygrp-msg p#attach-count span { color: #1E66AE; font-weight: 700; } #ygrp-reco #reco-head { color: #ff7900; font-weight: 700; } #ygrp-reco { margin-bottom: 20px; padding: 0px; } #ygrp-sponsor #ov li a { font-size: 130%; text-decoration: none; } #ygrp-sponsor #ov li { font-size: 77%; list-style-type: square; padding: 6px 0; } #ygrp-sponsor #ov ul { margin: 0; padding: 0 0 0 8px; } #ygrp-text { font-family: Georgia; } #ygrp-text p { margin: 0 0 1em 0; } #ygrp-text tt { font-size: 120%; } #ygrp-vital ul li:last-child { border-right: none !important; } -->
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          • Danny Miller
            Settings are not lost when the battery is removing, except of course the am I running right now? status resets. There is no internal watch battery or
            Message 5 of 14 , Aug 11, 2013
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              Settings are not lost when the battery is removing, except of course the
              "am I running right now?" status resets.

              There is no internal watch battery or anything to store settings. It's
              EEPROM.

              Danny

              On 8/11/2013 12:33 PM, Benjamin Hill wrote:
              > I am not aware of an internal rechargeable battery. I charge with external charger using 24 vdc fast charger made for mower. (Has same quick connect as mower). My settings are held fine and I suspect they are stored in eeprom and not stored with battery internally. Not for certain on this, just suspect it to be the case.
              >
              > Ben
              >
              > On Aug 10, 2013, at 3:57 PM, "Tom Stewart" <tstewartjr@...> wrote:
              >
              >> I cut the cable between the positive terminal of one batter, and the negative terminal of the other, and installed a connector. For years, I bench charged the batteries with a 12v auto charger, on 2 amp, automatic charge rate. Simply disconnect the batteries, and charge them individually. Fast, smart, no damage.
              >>
              >> aceomeg <aceomeg@...> wrote:
              >>
              >>>
              >>>
              >>> Hi All,
              >>> I'm considering charging only via an external charger like the NOCO Genius G7200 because it charges faster.
              >>> I believe there is a 9 volt rechargeable battery in the mower that maybe charges off of the built in charging circuit and not from the battery. My guess would be that this battery retains settings like the anti-theft code and zone configurations when the battery is out of the unit.
              >>> Does anyone else not use the built in charger? Is there any cause for concern in doing this?
              >>> Thanks for the advice.
              >>>
              >>>
              >>>
              >>> <!-- #ygrp-mkp { border: 1px solid #d8d8d8; font-family: Arial; margin: 10px 0; padding: 0 10px; } #ygrp-mkp hr { border: 1px solid #d8d8d8; } #ygrp-mkp #hd { color: #628c2a; font-size: 85%; font-weight: 700; line-height: 122%; margin: 10px 0; } #ygrp-mkp #ads { margin-bottom: 10px; } #ygrp-mkp .ad { padding: 0 0; } #ygrp-mkp .ad p { margin: 0; } #ygrp-mkp .ad a { color: #0000ff; text-decoration: none; } #ygrp-sponsor #ygrp-lc { font-family: Arial; } #ygrp-sponsor #ygrp-lc #hd { margin: 10px 0px; font-weight: 700; font-size: 78%; line-height: 122%; } #ygrp-sponsor #ygrp-lc .ad { margin-bottom: 10px; padding: 0 0; } #actions { font-family: Verdana; font-size: 11px; padding: 10px 0; } #activity { background-color: #e0ecee; float: left; font-family: Verdana; font-size: 10px; padding: 10px; } #activity span { font-weight: 700; } #activity span:first-child { text-transform: uppercase; } #activity span a { color: #5085b6; text-decoration: none; } #activity span span { color: #ff7900; } #activity span .underline { text-decoration: underline; } .attach { clear: both; display: table; font-family: Arial; font-size: 12px; padding: 10px 0; width: 400px; } .attach div a { text-decoration: none; } .attach img { border: none; padding-right: 5px; } .attach label { display: block; margin-bottom: 5px; } .attach label a { text-decoration: none; } blockquote { margin: 0 0 0 4px; } .bold { font-family: Arial; font-size: 13px; font-weight: 700; } .bold a { text-decoration: none; } dd.last p a { font-family: Verdana; font-weight: 700; } dd.last p span { margin-right: 10px; font-family: Verdana; font-weight: 700; } dd.last p span.yshortcuts { margin-right: 0; } div.attach-table div div a { text-decoration: none; } div.attach-table { width: 400px; } div.file-title a, div.file-title a:active, div.file-title a:hover, div.file-title a:visited { text-decoration: none; } div.photo-title a, div.photo-title a:active, div.photo-title a:hover, div.photo-title a:visited { text-decoration: none; } div#ygrp-mlmsg #ygrp-msg p a span.yshortcuts { font-family: Verdana; font-size: 10px; font-weight: normal; } .green { color: #628c2a; } .MsoNormal { margin: 0 0 0 0; } o { font-size: 0; } #photos div { float: left; width: 72px; } #photos div div { border: 1px solid #666666; height: 62px; overflow: hidden; width: 62px; } #photos div label { color: #666666; font-size: 10px; overflow: hidden; text-align: center; white-space: nowrap; width: 64px; } #reco-category { font-size: 77%; } #reco-desc { font-size: 77%; } .replbq { margin: 4px; } #ygrp-actbar div a:first-child { /* border-right: 0px solid #000;*/ margin-right: 2px; padding-right: 5px; } #ygrp-mlmsg { font-size: 13px; font-family: Arial, helvetica,clean, sans-serif; *font-size: small; *font: x-small; } #ygrp-mlmsg table { font-size: inherit; font: 100%; } #ygrp-mlmsg select, input, textarea { font: 99% Arial, Helvetica, clean, sans-serif; } #ygrp-mlmsg pre, code { font:115% monospace; *font-size:100%; } #ygrp-mlmsg * { line-height: 1.22em; } #ygrp-mlmsg #logo { padding-bottom: 10px; } #ygrp-msg p a { font-family: Verdana; } #ygrp-msg p#attach-count span { color: #1E66AE; font-weight: 700; } #ygrp-reco #reco-head { color: #ff7900; font-weight: 700; } #ygrp-reco { margin-bottom: 20px; padding: 0px; } #ygrp-sponsor #ov li a { font-size: 130%; text-decoration: none; } #ygrp-sponsor #ov li { font-size: 77%; list-style-type: square; padding: 6px 0; } #ygrp-sponsor #ov ul { margin: 0; padding: 0 0 0 8px; } #ygrp-text { font-family: Georgia; } #ygrp-text p { margin: 0 0 1em 0; } #ygrp-text tt { font-size: 120%; } #ygrp-vital ul li:last-child { border-right: none !important; } -->
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              >
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              >
              > ------------------------------------
              >
              > Yahoo! Groups Links
              >
              >
              >
              >
            • rann_georgia
              Since I ve had my mower apart for so long, I had to find wiring diagrams to make sure a couple of connections were correct. It appears there is a battery
              Message 6 of 14 , Aug 14, 2013
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                Since I've had my mower apart for so long, I had to find wiring diagrams to make sure a couple of connections were correct. It appears there is a battery inside some units (newer models). I think it was a 9volt. My RL1000 has no internal batteries.

                The only concern I have with rapid charging is only what I've heard. Doesn't rapid charging, in general, shorten the life of the batteries being so charged?


                --- In RoboMower@yahoogroups.com, Tim Wolff <twolff69@...> wrote:
                >
                > What model mower?
                > I don't know of an internal battery in my 800 and 850s.
                > I've been charging the batteries outside the mower for years w/o issue. I run leads for each of the batteries in the pack out the "handle" opening and charge each battery in the pack separately.
                > Tim
                >
                > > To: RoboMower@yahoogroups.com
                > > From: aceomeg@...
                > > Date: Sat, 10 Aug 2013 17:22:16 +0000
                > > Subject: [RoboMower] What are the anticipated problems of charging without using the built in charger
                > >
                > > Hi All,
                > > I'm considering charging only via an external charger like the NOCO Genius G7200 because it charges faster.
                > > I believe there is a 9 volt rechargeable battery in the mower that maybe charges off of the built in charging circuit and not from the battery. My guess would be that this battery retains settings like the anti-theft code and zone configurations when the battery is out of the unit.
                > > Does anyone else not use the built in charger? Is there any cause for concern in doing this?
                > > Thanks for the advice.
                > >
                >
                >
                >
                > [Non-text portions of this message have been removed]
                >
              • Lee Hart
                ... It depends on the type of battery you are using. Lead-acid gel-type batteries have excellent life, but do not like high charge/discharge currents. They
                Message 7 of 14 , Aug 14, 2013
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                  rann_georgia wrote:
                  > The only concern I have with rapid charging is only what I've heard. Doesn't rapid charging, in general, shorten the life of the batteries being so charged?

                  It depends on the type of battery you are using.

                  Lead-acid gel-type batteries have excellent life, but do not like high
                  charge/discharge currents. They will die an early death if charged too
                  fast, or to too high a voltage. Normal chargers (like the one that comes
                  with the Robomower) will typically "cook" a gel cell to death. Gel cell
                  chargers typically apply a constant voltage of about 13.2-13.5v. You do
                  *not* want to fast-charge gels!

                  Lead-acid AGM-type batteries have shorter life, but work well at high
                  currents (both charging and discharging). Some manufacturers (Enersys
                  and Hawker) have reported that life is actually improved when at least
                  part of the charging cycle is done at high current (like 1/4th its
                  amphour capacity, or 4 amps for a 16 amphour battery).

                  AGMs also do not like overcharging; however, it is necessary for the
                  last part of the charge cycle to get them up to about 2.5v/cell (15v per
                  12v battery) to "equalize" them. But you need to strictly limit the time
                  and current at this voltage, or it will overcharge and be damaged.

                  The Robomower comes with a dumb old constant-voltage type charger. Its
                  float voltage (about 13.8v per 12v battery) is most suitable for old
                  flooded lead-acids, which are pretty tolerant of overcharging (because
                  you can replace any water lost by overcharging). But of course,
                  Robomowers don't come with flooded lead-acids. If used on AGMs, it fails
                  to do the final high-voltage low-current equalization step. If used on
                  gels, its float voltage is too high.

                  I found that the AGMs that came with my Robomower were dead in one
                  season. I replaced them with Hawkers, and have used a separate
                  high-quality 12v 4amp "smart" charger. I added connectors to each
                  battery, and recharge them one at a time. The batteries are now 4 years
                  old, and still going strong.

                  Hope this helps!
                  --
                  In life’s great adventures, keep in mind thy cause.
                  Be neither moved by critics, nor multitude’s applause.
                  -- Nasreddin
                  --
                  Lee A. Hart, http://www.sunrise-ev.com/LeesEVs.htm
                • Visti
                  ... This is not quite my experience. I did measure charging of my first RL1000 for 16 hours. This is the result.
                  Message 8 of 14 , Aug 15, 2013
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                    --- In RoboMower@yahoogroups.com, Lee Hart <leeahart@...> wrote:
                    >
                    > The Robomower comes with a dumb old constant-voltage type charger. Its
                    > float voltage (about 13.8v per 12v battery) is most suitable for old
                    > flooded lead-acids, which are pretty tolerant of overcharging (because
                    > you can replace any water lost by overcharging). But of course,
                    > Robomowers don't come with flooded lead-acids. If used on AGMs, it fails
                    > to do the final high-voltage low-current equalization step. If used on
                    > gels, its float voltage is too high.
                    >
                    > I found that the AGMs that came with my Robomower were dead in one
                    > season. I replaced them with Hawkers, and have used a separate
                    > high-quality 12v 4amp "smart" charger. I added connectors to each
                    > battery, and recharge them one at a time. The batteries are now 4 years
                    > old, and still going strong.
                    >
                    > Hope this helps!
                    > --
                    > In life's great adventures, keep in mind thy cause.
                    > Be neither moved by critics, nor multitude's applause.
                    > -- Nasreddin
                    > --
                    > Lee A. Hart, http://www.sunrise-ev.com/LeesEVs.htm
                    >

                    This is not quite my experience. I did measure charging of my first RL1000 for 16 hours. This is the result.
                    http://f1.grp.yahoofs.com/v1/MI8MUtIxo6J__9YXUJay7moHgbdvBUgZQgQU-8hSKLS1Ns8Y5yk-IyRyRUPxSRW5VtMMkzU0h5o8r7Gs58KteCOgQdStYdfnZP9xQ6Q/RL1000%20charging.GIF (you can find it in the files section).
                    It is now running every day on its 7th season using the original batteries.
                    I never exhaust the batteries. Mowing time is 1 hour 40 minutes and has been since day one.
                  • Lee Hart
                    ... Hi Visti, Your link didn t work for me, so I can t see your data. Perhaps your RL1000 has a different charger? I have an RL850. I measured the stock
                    Message 9 of 14 , Aug 15, 2013
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                      Lee Hart wrote:
                      >> The Robomower comes with a dumb old constant-voltage type charger...

                      Visti wrote:
                      > This is not quite my experience. I did measure charging of my first RL1000 for 16 hours. This is the result.
                      > http://f1.grp.yahoofs.com/v1/MI8MUtIxo6J__9YXUJay7moHgbdvBUgZQgQU-8hSKLS1Ns8Y5yk-IyRyRUPxSRW5VtMMkzU0h5o8r7Gs58KteCOgQdStYdfnZP9xQ6Q/RL1000%20charging.GIF (you can find it in the files section).
                      > It is now running every day on its 7th season using the original batteries.
                      > I never exhaust the batteries. Mowing time is 1 hour 40 minutes and has been since day one.

                      Hi Visti,

                      Your link didn't work for me, so I can't see your data. Perhaps your
                      RL1000 has a different charger?

                      I have an RL850. I measured the stock charger voltage: It delivered
                      about 3.5 amps peak at the start of the charging cycle, which tapered
                      down as the battery voltage rose. It ended up at 27.6v, which is 13.8v
                      per 12v battery at the end of the charge cycle. There was no
                      equalization step; it appeared to be a simple current limited constant
                      voltage charger.

                      My present charger charges at 4 amps until the battery reaches 14.7v;
                      then it holds it at 14.7v until the current falls to 200ma; then it
                      switches to 13.5v float. The 14.7v equalization step, and lower float
                      voltage step helps the life of AGMs.
                      --
                      In life’s great adventures, keep in mind thy cause.
                      Be neither moved by critics, nor multitude’s applause.
                      -- Nasreddin
                      --
                      Lee A. Hart, http://www.sunrise-ev.com/LeesEVs.htm
                    • rann_georgia
                      Your question about charging gave me a great idea. A couple of years ago the base docking charging/transmitter board shorted out but the charger, I assume, is
                      Message 10 of 14 , Aug 15, 2013
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                        Your question about charging gave me a great idea.

                        A couple of years ago the base docking charging/transmitter board shorted out but the charger, I assume, is still good. I bought the indoor charger, just ran the cord out of a shed and use a perimeter switch.

                        Having now become intimate with the workings of this machine since I've taken it apart, I see no reason why I can't hook that outdoor charger up to the charging metal bars on the original docking station.

                        From looking at the board that both the indoor charger hooks into and the docking station charger which are the same, the unit shouldn't notice that the docking station board has been fried.

                        --- In RoboMower@yahoogroups.com, Lee Hart <leeahart@...> wrote:
                        >
                        > Lee Hart wrote:
                        > >> The Robomower comes with a dumb old constant-voltage type charger...
                        >
                        > Visti wrote:
                        > > This is not quite my experience. I did measure charging of my first RL1000 for 16 hours. This is the result.
                        > > http://f1.grp.yahoofs.com/v1/MI8MUtIxo6J__9YXUJay7moHgbdvBUgZQgQU-8hSKLS1Ns8Y5yk-IyRyRUPxSRW5VtMMkzU0h5o8r7Gs58KteCOgQdStYdfnZP9xQ6Q/RL1000%20charging.GIF (you can find it in the files section).
                        > > It is now running every day on its 7th season using the original batteries.
                        > > I never exhaust the batteries. Mowing time is 1 hour 40 minutes and has been since day one.
                        >
                        > Hi Visti,
                        >
                        > Your link didn't work for me, so I can't see your data. Perhaps your
                        > RL1000 has a different charger?
                        >
                        > I have an RL850. I measured the stock charger voltage: It delivered
                        > about 3.5 amps peak at the start of the charging cycle, which tapered
                        > down as the battery voltage rose. It ended up at 27.6v, which is 13.8v
                        > per 12v battery at the end of the charge cycle. There was no
                        > equalization step; it appeared to be a simple current limited constant
                        > voltage charger.
                        >
                        > My present charger charges at 4 amps until the battery reaches 14.7v;
                        > then it holds it at 14.7v until the current falls to 200ma; then it
                        > switches to 13.5v float. The 14.7v equalization step, and lower float
                        > voltage step helps the life of AGMs.
                        > --
                        > In life's great adventures, keep in mind thy cause.
                        > Be neither moved by critics, nor multitude's applause.
                        > -- Nasreddin
                        > --
                        > Lee A. Hart, http://www.sunrise-ev.com/LeesEVs.htm
                        >
                      • Visti
                        You can finde the file in the files section near the bottom. http://tech.groups.yahoo.com/group/RoboMower/files/ RL1000 charging.GIF The mower was at the
                        Message 11 of 14 , Aug 15, 2013
                        • 0 Attachment
                          You can finde the file in the files section near the bottom.
                          http://tech.groups.yahoo.com/group/RoboMower/files/
                          RL1000 charging.GIF

                          The mower was at the docking station.

                          --- In RoboMower@yahoogroups.com, Lee Hart <leeahart@...> wrote:
                          >
                          > Lee Hart wrote:
                          > >> The Robomower comes with a dumb old constant-voltage type charger...
                          >
                          > Visti wrote:
                          > > This is not quite my experience. I did measure charging of my first RL1000 for 16 hours. This is the result.
                          > > http://f1.grp.yahoofs.com/v1/MI8MUtIxo6J__9YXUJay7moHgbdvBUgZQgQU-8hSKLS1Ns8Y5yk-IyRyRUPxSRW5VtMMkzU0h5o8r7Gs58KteCOgQdStYdfnZP9xQ6Q/RL1000%20charging.GIF (you can find it in the files section).
                          > > It is now running every day on its 7th season using the original batteries.
                          > > I never exhaust the batteries. Mowing time is 1 hour 40 minutes and has been since day one.
                          >
                          > Hi Visti,
                          >
                          > Your link didn't work for me, so I can't see your data. Perhaps your
                          > RL1000 has a different charger?
                          >
                          > I have an RL850. I measured the stock charger voltage: It delivered
                          > about 3.5 amps peak at the start of the charging cycle, which tapered
                          > down as the battery voltage rose. It ended up at 27.6v, which is 13.8v
                          > per 12v battery at the end of the charge cycle. There was no
                          > equalization step; it appeared to be a simple current limited constant
                          > voltage charger.
                          >
                          > My present charger charges at 4 amps until the battery reaches 14.7v;
                          > then it holds it at 14.7v until the current falls to 200ma; then it
                          > switches to 13.5v float. The 14.7v equalization step, and lower float
                          > voltage step helps the life of AGMs.
                          > --
                          > In life's great adventures, keep in mind thy cause.
                          > Be neither moved by critics, nor multitude's applause.
                          > -- Nasreddin
                          > --
                          > Lee A. Hart, http://www.sunrise-ev.com/LeesEVs.htm
                          >
                        • aceomeg
                          Whoops, you re right, there is no 9volt in there. I don t know why I thought there was one. I must have had the dumbs there for a bit.
                          Message 12 of 14 , Aug 15, 2013
                          • 0 Attachment
                            Whoops, you're right, there is no 9volt in there. I don't know why I thought there was one. I must have had the dumbs there for a bit.

                            --- In RoboMower@yahoogroups.com, Tim Wolff <twolff69@...> wrote:
                            >
                            > What model mower?
                            > I don't know of an internal battery in my 800 and 850s.
                            > I've been charging the batteries outside the mower for years w/o issue. I run leads for each of the batteries in the pack out the "handle" opening and charge each battery in the pack separately.
                            > Tim
                            >
                            > > To: RoboMower@yahoogroups.com
                            > > From: aceomeg@...
                            > > Date: Sat, 10 Aug 2013 17:22:16 +0000
                            > > Subject: [RoboMower] What are the anticipated problems of charging without using the built in charger
                            > >
                            > > Hi All,
                            > > I'm considering charging only via an external charger like the NOCO Genius G7200 because it charges faster.
                            > > I believe there is a 9 volt rechargeable battery in the mower that maybe charges off of the built in charging circuit and not from the battery. My guess would be that this battery retains settings like the anti-theft code and zone configurations when the battery is out of the unit.
                            > > Does anyone else not use the built in charger? Is there any cause for concern in doing this?
                            > > Thanks for the advice.
                            > >
                            >
                            >
                            >
                            > [Non-text portions of this message have been removed]
                            >
                          • TinaP
                            Hi Rann, Being in Atlanta all three of my docking boards have been destroyed by lightning. One of them so bad that all of the capacitors were actually blown
                            Message 13 of 14 , Aug 16, 2013
                            • 0 Attachment
                              Hi Rann,

                              Being in Atlanta all three of my docking boards have been destroyed by lightning. One of them so bad that all of the capacitors were actually blown off the board. On all three I replaced the power supply with a 32V power supply from an HP printer and they all charge fine. I just plug the perimeter switch in behind the docking station so my RL-1000's still return to base after they are finished cutting.
                              Good Luck,
                              William

                              --- In RoboMower@yahoogroups.com, "rann_georgia" <southbound03@...> wrote:
                              >
                              > Your question about charging gave me a great idea.
                              >
                              > A couple of years ago the base docking charging/transmitter board shorted out but the charger, I assume, is still good. I bought the indoor charger, just ran the cord out of a shed and use a perimeter switch.
                              >
                              > Having now become intimate with the workings of this machine since I've taken it apart, I see no reason why I can't hook that outdoor charger up to the charging metal bars on the original docking station.
                              >
                              > From looking at the board that both the indoor charger hooks into and the docking station charger which are the same, the unit shouldn't notice that the docking station board has been fried.
                              >
                              > --- In RoboMower@yahoogroups.com, Lee Hart <leeahart@> wrote:
                              > >
                              > > Lee Hart wrote:
                              > > >> The Robomower comes with a dumb old constant-voltage type charger...
                              > >
                              > > Visti wrote:
                              > > > This is not quite my experience. I did measure charging of my first RL1000 for 16 hours. This is the result.
                              > > > http://f1.grp.yahoofs.com/v1/MI8MUtIxo6J__9YXUJay7moHgbdvBUgZQgQU-8hSKLS1Ns8Y5yk-IyRyRUPxSRW5VtMMkzU0h5o8r7Gs58KteCOgQdStYdfnZP9xQ6Q/RL1000%20charging.GIF (you can find it in the files section).
                              > > > It is now running every day on its 7th season using the original batteries.
                              > > > I never exhaust the batteries. Mowing time is 1 hour 40 minutes and has been since day one.
                              > >
                              > > Hi Visti,
                              > >
                              > > Your link didn't work for me, so I can't see your data. Perhaps your
                              > > RL1000 has a different charger?
                              > >
                              > > I have an RL850. I measured the stock charger voltage: It delivered
                              > > about 3.5 amps peak at the start of the charging cycle, which tapered
                              > > down as the battery voltage rose. It ended up at 27.6v, which is 13.8v
                              > > per 12v battery at the end of the charge cycle. There was no
                              > > equalization step; it appeared to be a simple current limited constant
                              > > voltage charger.
                              > >
                              > > My present charger charges at 4 amps until the battery reaches 14.7v;
                              > > then it holds it at 14.7v until the current falls to 200ma; then it
                              > > switches to 13.5v float. The 14.7v equalization step, and lower float
                              > > voltage step helps the life of AGMs.
                              > > --
                              > > In life's great adventures, keep in mind thy cause.
                              > > Be neither moved by critics, nor multitude's applause.
                              > > -- Nasreddin
                              > > --
                              > > Lee A. Hart, http://www.sunrise-ev.com/LeesEVs.htm
                              > >
                              >
                            • rann_georgia
                              Hi Neighbor: I m just down the road a bit in Macon. Yes, lightening is one of the Achilles heels of these beasts. In Macon we have the Ocmulgee Indian Mounds
                              Message 14 of 14 , Aug 16, 2013
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                                Hi Neighbor:

                                I'm just down the road a bit in Macon. Yes, lightening is one of the Achilles heels of these beasts.

                                In Macon we have the Ocmulgee Indian Mounds which is either a state or national park Ancient Indians built these mounds, one of which I would say is about four stories or higher. They recently bought a robotic lawn mower designed to mow steep inclines sometimes using a tether rope. I believe it's made in Denmark, is gasoline powered and operated by direct remote control. The only draw-back to this model is it's $38,000.

                                Since I have no garage, my unit is covered up with a tarp and plastic, as you know, because of the endless rain we're having.

                                On the first docking board, the insurance paid for the replacement as it was a really bad strike taking out 13k of stuff in the house. The second one, I never screwed into the base so that I could disconnect it when a storm was approaching. However, the wind blew it over and laying upsidedown, like a turtle on its back, rain water gathered in it and shorted it out.

                                A local electronics store looked at the board and said it couldn't be repaired because the short went through both sides of the board. So, if in the future, someone has a similar problem but the problem doesn't burn through the board, it might be possible to repair the docking station board.

                                The next problem--when the rain stops--is cleaning a bit of corrosion off the board where the power connectors come in. I fear once I get that down that I'll be replacing the rightside motor. Took it to a local machine shop to have new pinon gears pressed on. I don't think he knew how to do it as now that one motor will turn only with great effort. Oh, well, it's a soap opera but a learning experience. I'm getting to the point now I can almost create a troubleshooting diagram.



                                --- In RoboMower@yahoogroups.com, "TinaP" <tinapropes@...> wrote:
                                >
                                >
                                > Hi Rann,
                                >
                                > Being in Atlanta all three of my docking boards have been destroyed by lightning. One of them so bad that all of the capacitors were actually blown off the board. On all three I replaced the power supply with a 32V power supply from an HP printer and they all charge fine. I just plug the perimeter switch in behind the docking station so my RL-1000's still return to base after they are finished cutting.
                                > Good Luck,
                                > William
                                >
                                > --- In RoboMower@yahoogroups.com, "rann_georgia" <southbound03@> wrote:
                                > >
                                > > Your question about charging gave me a great idea.
                                > >
                                > > A couple of years ago the base docking charging/transmitter board shorted out but the charger, I assume, is still good. I bought the indoor charger, just ran the cord out of a shed and use a perimeter switch.
                                > >
                                > > Having now become intimate with the workings of this machine since I've taken it apart, I see no reason why I can't hook that outdoor charger up to the charging metal bars on the original docking station.
                                > >
                                > > From looking at the board that both the indoor charger hooks into and the docking station charger which are the same, the unit shouldn't notice that the docking station board has been fried.
                                > >
                                > > --- In RoboMower@yahoogroups.com, Lee Hart <leeahart@> wrote:
                                > > >
                                > > > Lee Hart wrote:
                                > > > >> The Robomower comes with a dumb old constant-voltage type charger...
                                > > >
                                > > > Visti wrote:
                                > > > > This is not quite my experience. I did measure charging of my first RL1000 for 16 hours. This is the result.
                                > > > > http://f1.grp.yahoofs.com/v1/MI8MUtIxo6J__9YXUJay7moHgbdvBUgZQgQU-8hSKLS1Ns8Y5yk-IyRyRUPxSRW5VtMMkzU0h5o8r7Gs58KteCOgQdStYdfnZP9xQ6Q/RL1000%20charging.GIF (you can find it in the files section).
                                > > > > It is now running every day on its 7th season using the original batteries.
                                > > > > I never exhaust the batteries. Mowing time is 1 hour 40 minutes and has been since day one.
                                > > >
                                > > > Hi Visti,
                                > > >
                                > > > Your link didn't work for me, so I can't see your data. Perhaps your
                                > > > RL1000 has a different charger?
                                > > >
                                > > > I have an RL850. I measured the stock charger voltage: It delivered
                                > > > about 3.5 amps peak at the start of the charging cycle, which tapered
                                > > > down as the battery voltage rose. It ended up at 27.6v, which is 13.8v
                                > > > per 12v battery at the end of the charge cycle. There was no
                                > > > equalization step; it appeared to be a simple current limited constant
                                > > > voltage charger.
                                > > >
                                > > > My present charger charges at 4 amps until the battery reaches 14.7v;
                                > > > then it holds it at 14.7v until the current falls to 200ma; then it
                                > > > switches to 13.5v float. The 14.7v equalization step, and lower float
                                > > > voltage step helps the life of AGMs.
                                > > > --
                                > > > In life's great adventures, keep in mind thy cause.
                                > > > Be neither moved by critics, nor multitude's applause.
                                > > > -- Nasreddin
                                > > > --
                                > > > Lee A. Hart, http://www.sunrise-ev.com/LeesEVs.htm
                                > > >
                                > >
                                >
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