fox_racin4 Posted July 28, 2009 Report Share Posted July 28, 2009 well i just picked up a red top optima... i know the most commonly used battery is the yellow top line from optima whats the differance between the two? red and yellow tops? 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
Guest Posted July 28, 2009 Report Share Posted July 28, 2009 blue tops have a big reserve capacity. red tops have a big CA and CCA ability yellow tops are deep-cycle. Link to comment Share on other sites More sharing options...
fox_racin4 Posted July 29, 2009 Author Report Share Posted July 29, 2009 when i put a DMM on it what should it read when its not hooked up? i got it on a slow charge 12V 2A since its been sitting as was at about 12.5 when i 1st cheacked it 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
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