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re: battery charging
7 may 2000
d.a.kopf wrote:
>...even after a year of 1% a day loss it has 2.5% charge...
i'da thunk losing "1% per day" meant 0.99^365 = 0.0255, ie there's
2.5% capacity left after a year, but now i'd guess the battery would be
dead after 100 days, since trojan's t-105 "stand loss curve" shows a
linear loss of capacity, ie about 37% left after 19 weeks at "0.005
per week loss in s.g." at 75 f (vs 0.0075 at 86 f and 0.0015 at 42 f),
where 1.277 is 100% capacity and 1.137 is 0%. that's a simple 3.3%
capacity loss per week, ie 96.7% remains after 1 week, with 93.4%
after 2 weeks, 90% after 3, and so on.
nick
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