Forum Discussion

lawrosa's avatar
lawrosa
Explorer
Feb 12, 2018

Parallel 12volt, more capacity then AH rating? 2.7 x's more!

Just to throw another wrench in the works. Per my other posts on 12v vs 6 volt I found some vids that seem interesting It seems this guy tested parallel 12 volters. Nothing about voltage drop ...
pianotuna's avatar
pianotuna
Nomad III
Feb 13, 2018
Hi,

Better tell Rolls/Surrette that their batteries which do list CCA are not truly deep cycle.

theoldwizard1 wrote:
The real issue is cost and availability of TRUE deep discharge 12V batteries. "Dual purpose"/"marine" batteries are a compromise. Any battery that advertises Cold Cranking Amps (CCA) or Marine Cranking Amps (MCA) is NOT a true deep discharge battery. These will have a short life when used in an RV.

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