Re: Oops, left the M37 ignition on

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Posted by David Sherman on Monday, January 08, 2001 at 9:11PM :

In Reply to: Re: Oops, left the M37 ignition on posted by Gordon (the Scottish one) on Monday, January 08, 2001 at 6:23PM :

I don't think any experts advise draining a lead-acid battery all the way down. 50% is considered safe. You might have read something like that about nicad batteries. They're very different; for example they can be stored discharged forever with no damage, but if you typically only use say 10% of their capacity they'll "take a set" and after a while that's all they'll hold. If you drain a lead acid battery 100%, both sets of plates become chemically identical, the electrolyte becomes pure water, and no matter how long and hard you try to charge it, nothing will happen.

Follow Ups:

Re: No, there was a story about lead acid batteries too. - Gary 11:06PM 01/08/2001

you caN CHARGE EM BACKWARDS - casebro 10:13PM 01/09/2001

Deep cycle batteries - Russ 10:48AM 01/09/2001

Re: Deep cycle batteries - Brian in Oregon 6:54PM 01/09/2001

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