222Re: [force_ev] Pb-acid Battery Charging
- Apr 3, 2001On Tue, 3 Apr 2001, David Roden (Akron OH USA) wrote:
> However, to some extent, a lot of very shallow cycles (say, 20-30% DOD)I wish there were an easy way for me to tell, when I get out of my car and
> can be less efficient in terms of the mileage you get out of a battery.
> The optimal depth of discharge (optimal in the sense of giving the most
> total distance before replacement) is around 50% per cycle.
it says I'm down 15 amp-hours, whether I'm at 20% or 30% or 50% depth of
discharge. The manual says I'm supposed to be able to go to 55 amp-hours,
but the only time I've been down as far as 35 amp-hours the car started to
lose power noticeably.
Lately I've just been driving to work (about 6 amp-hours) and back (about
8; it's mostly uphill).
The manual also says, by the way, that I should charge until the amp-hour
meter reads -4, but that is damned near impossible, as the charger
sometimes (but not always!) shuts off at -1 or even +1, and because once
it shuts off, if the meter reads below 0, it will reset to zero in about
twenty minutes, leaving me scratching my head as to whether I'm at -.1 or
- << Previous post in topic Next post in topic >>