Battery basics and EV battery technoligy

Jim

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Good simple explanation Doug.
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Let me just throw this out there since we're talking basics... a lot of smaller batteries will list AH but don't show CCA's. Mostly because they're for applications that don't use a starter and therefor have no need of a CCA rating. All is not lost.... there's a rule of thumb for that. :sneaky:
AH times 7.25 give you CCA. For instance, a battery listed as 10 amp/hrs (AH) would be capable of 72.5 cold cranking amps (CCA). Goes the other way too. A battery listed as having 100 CCA would be capable of about 13.8 amp/hrs.
Bare in mind it's just a rule of thumb... but it'll get you inside the ballpark.
 

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