QUOTE(unpolire @ Apr 10 2012, 09:32 AM)
QUOTE(underthetire @ Apr 10 2012, 07:32 AM)
Common failure in the Optima's actually. Plates break loose=short=takes out the charging system. It's the Red Tops that do this BTW.
I have had 4 red-top and 1 yellow-top Optima fail repeatedly. Unrelated to car issues. I have an AGM (Absorbent Glass Mat)-compatible electronic charger, but that is not the issue. When they go they will not accept a charge, period. Very frustrating as I thought I was buying the best for $180-$220+. I have seen a brand new one fail in 30 days, verified by the distributor. Amazingly, when you have a good one, they are apparently invincible. Distributor showed me one that has never been charged in 8 years and had perfect voltage. Production switched outside of the USA and this could be the problem with internal quality.
My experience is that these batteries do not stand up to recharging, if you do not use the car regularly and keep the battery near full charge they do not last.
I've spent to many $$ on Optimas and seen no benefit for the extra money.
The last one I purchased would not hold a charge.
I'm not buying them again.