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ron_dittmer's avatar
ron_dittmer
Explorer III
Oct 13, 2014

Batteries: Two-6V In Series, or Two-12V In Parallel ???

Before spring I will be replacing our two 12V Walmart coach batteries. Our 7 year old rig has it's original Tripplite 2000 watt inverter/charger similar to THIS ONE. I was thinking of replacing the ...
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pnichols's avatar
pnichols
Explorer II
Oct 15, 2014
DiploStrat wrote:
12v batteries connected in parallel do not need to be isolated from each other and if you used a diode isolator, that may have caused your problem. Diode isolators cause a 0.5 - 1.0v drop, depending on the amperage flow. See: Diodes


Excellent clarification!

(What you say is why I used the phrase "direct parallel" in my post earlier describing how our two 12V RV batteries and engine starting battery were all connected together.)

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