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steveexplorer's avatar
steveexplorer
Explorer
Sep 21, 2013

Which is better - (3) 12v batteries vs (2) 6v batteries

I am looking to replace an old coach battery with AGM batteries for boondocking usage. I have space for (3) 12 volt group 24s without having to do any modifications, but could also just use 2 of the b...
pianotuna's avatar
pianotuna
Nomad III
Oct 02, 2013
Hi,

If AGM is your choice then 3 12 volt jars would outperform 2 6 volt units. The chemistry is the same and so is the cycle depth. Wiring should be balanced as method #3 on the smartgauge site.

The next issue would be sizing the inverter. It should be PSW if you plan on running any devices with motors. It should be 125% larger in wattage than the biggest load it will be required to power.

Currently the "best bang for the buck" is the Xantrex 2000 watt @ $355.00.

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