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I understand amps hours in is "close enough" to amps hours out to not worry about it.
This is not true of power in vs power out since the amp hours in are generally at a higher voltage than the amp hours out.
(edit - the "close enough" doesnt take into account the rate of charging - ie, Puekert stuff - just a general reason why the battery will disipate some heat when being charged but that the amp hours out can be roughly compared to amp hours in)
My wet cell battery bank is in it third year and I think its dying and Im wondering how others have determined when its time to declare them dead. I have a charge meter and using a three stage charger, it will say the battery is full (ie, the charger resets to 100% full). But after using less then 10 amphour (200 amp hour battery), and with say a 1 amp load, the DC voltage will drop to say 12.0 volts. Seem way too low.
Ive never equalized the batteries, I wonder how much they would recover from this??.
Last edited by waltsn; 06-17-2009 at 04:30 PM.