Quote:
Originally Posted by Josie'sLandCruiser
Hi All:
I'm a bit confused here. I use a high CCA rated deep cycle battery because I was under the impression that normal lead-acid automotive batteries were not designed for repeated drain-downs and recharges; that this sort of activity would damage the internal plates of the battery, while deep cycle cells are designed for repeated drainings and recharges.
Regards,
Alan
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Deep cycle batteries aren't designed for quick discharge. A starter battery has thinner plates which will discharge faster. Winches use a lot of current in a short period of time, just like the starter.
Deep cycle batteries usually have a lower CCA rating for the same size but a higher RC. The reserve cranking amps are pretty worthless for winching.
Optima use to have a nice write up about this on their site but I can't find it now.