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1939Re: [solectria_ev] Re: battery chargers and dc dc converters

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  • Terry Merrell
    Apr 10, 2006
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      Take a look at the E10 forum. There is a thread on how to up the voltage on
      the Solectria DC/DC converters.

      http://portev.org/forum/index.php


      Terry


      > Tha bad news about the Solectria DC-DC converters is that it puts out
      > only 12 volts. So your headlights will be very dim. You need one that
      > puts out around 13.8v.
      >
      > Mike
      >
      >
      > --- In solectria_ev@yahoogroups.com, gjc0@... wrote:
      >>
      >> Jeremy:
      >>
      >> I own a Solectria Force which I bought and repaired. I, myself,
      > have not done a conversion, but as an electrical engineer, have some
      > ideas on the process.
      >>
      >> 1.
      >> For my lights, horn, radio etc is it advisable to
      >> a) use a dc-dc converter, possibly topping up a battery. (Most use
      > DC-DC converters)
      >> b) use a battery, no converter. (Works well, but adds weight and
      > another charger)
      >> c) use a battery in parallel with one of the main propulsion
      >> batteries. (NO! This will adversly affect battery string equalization)
      >>
      >> 2.
      >> For charging the main propulsion batteries does anyone have
      >> recommendations for chargers? My storage is either Li ion or NiMh.
      >> Is a homebrew charger a bad idea?
      >> My car uses a Zivan NG3. It runs and 240 volts, is configured to
      > charge my 12 gel cells.
      >> It works well. Unless you a talented in kilowatt switching power
      > supply design AND embedded micro processors. DO NOT use a home brew
      > charger. Battery life is greatly affected by charging and
      > discharging. Flooded lead acid batteries are the most forgiving, but
      > the exotic batteries, starting with gel cells require better charging
      > systems.
      >>
      >> I have been offered:
      >> $350 for a Solectria DC750 dc-dc converter (200-400VDC to 12VDC)
      >> (A good price if it works. Check the web suppliers like
      > electroautomotive for comparisons)
      >> $200 for Zivan NG3 F7YBSO 288VDC charger (made for lead acid, 9A
      >> 288V max) A good price if it works. Check what type and voltage
      > batteries it is programmed for. Is is 120V or 240 Volt? I am looking
      > to buy a 120 volt and get it reprogrammed for my car. Let me know, if
      > you do not plan to buy it. I might.
      >>
      >> Sincerely,
      >> Gary Carlson
      >>
      >>
      >>
      >> -----Original Message-----
      >> From: Jeremy Rutman <jeremy_spagnet@...>
      >> To: solectria_ev@yahoogroups.com
      >> Sent: Wed, 05 Apr 2006 19:08:03 -0000
      >> Subject: [solectria_ev] battery chargers and dc dc converters
      >>
      >>
      >> [Non-text portions of this message have been removed]
      >>
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