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Old 08-02-2010, 08:10 PM
ArtJ ArtJ is offline
 
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One other thought comes to mind, again, I am not a battery expert.

If a battery is allowed to remain discharged for a period of time
sulfation occurs (please don't ask me the chemistry). They can
sometimes be recovered by application of overvoltage higher than normal over
a specific algorithm, but it can be risky or dangerous to apply higher
than normal charge voltage. So it is best to not let the battery be left
in a discharged, or even partially discharged state for long.
Letting them get below 50 % is definitely not recommended by mfrs

Just an aside I happened to remember
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