Originally posted by ChrisOlson
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10 15 years ago there were no real good choices for off-grid folks which forced them to use golf cart and floor machine batteries because that is all there was around. Things have changed and now manufactures are now offering batteries made to work with RE applications. One reason for that is manufactures were getting hammered with warranty claims and that is due to RE applications rarely ever get the batteries fully recharged to 100% nor do they ever take the time to do proper maintenance most importantly Equalizing Charges as required.
Si I agree using a Golf Cart battery may not be a good choice for RE with one exception where higher discharge rates of C/8 are encountered. Ah per AH hybrid batteries have lower internal resistance and can deliver higher discharge rates without excessive voltage sag. But to get that you have to sacrifice cycle life with thinner, lighter, and more plates. Dead give away you have a hybrid battery is if you see a RC or cranking amp spec. True Deep Cycle batteries will not likely have a RC or CA spec just AH at some given discharge rate.
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