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Re: (ET) Battery Voltage vs. % Charge

Aged batteries don't do as well.  100% charge figures ar lower.  And
anyone who dri
ves em down to that 10% figure is courting disaster through a heavy
'start' draw bringing em down to zero, then polarity reversal.

Dave
Weymouth MA





On Fri, 28 Jul 2006 09:27:57 -0700 "Herb Crary" <jhcrary comcast net>
writes:
> This table came from somewhere on this list, I believe. It is very 
> handy. Vooltage should be measures  at least a couple of hours after 
> charging as I recall
> 
> Herb Crary
> Boulder CO
> 
>  State of charge as related to specific gravity and
>  open circuit voltage
>  
>        Percentage of Charge  Specific Gravity Corrected to
>        80o F  Open-Circuit Voltage
>          %             6V     12V    24V    36V    48V
>        1001.277 6.37 12.73 25.46 38.20 50.93
>         90 1.258 6.31 12.62 25.24 37.85 50.47
>         80 1.238 6.25 12.50 25.00 37.49 49.99
>         70 1.217 6.19 12.37 24.74 37.12 49.49
>         60 1.195 6.12 12.24 24.48 36.72 48.96
>         50 1.172 6.05 12.10 24.20 36.31 48.41
>         40 1.148 5.98 11.96 23.92 35.87 47.83
>         30 1.124 5.91 11.81 23.63 35.44 47.26
>         20 1.098 5.83 11.66 23.32 34.97 46.63
>         10 1.073 5.75 11.51 23.02 34.52 46.03
>  
>  
>  
>  
>  _______________________________________________