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Battery group size?

White wondee
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Mopar1973Man

Mopar1973Man

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Naturally happens over the life a a battery they do not hold a perfect 800 or 850 CCA every day for ever. The slowly weaken that CCA number slow grows smaller. By the time I replace my battery they are most likely like 400 CCA (Total of 800 CCA for the pair) still starts and runs but if you needed that extended time to crank in cold weather, not happening. Heck these batteries are already a year old now and I'm sure there are no longer 810 CCA a piece maybe more like 790-800 CCA a piece as the batteries age. 

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