[MARKGMC3]

Mark,

I think Richard pretty much nailed it. Your charger(s) may not have got out of Bulk/Absorption and just kept hitting the batteries with full charge because of one or more bad batteries or cells. You could also have an inverter problem as well. You want to make sure you get to Float charge once the inverter parameters have been reached for charging. 

I can help you with batteries if you want.

Tom,

thanks for the offer & info....already have them on order from Interstate...(6) should be here next Tue.

price is not like the old day's.

Mark