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Old 01-06-2020, 11:02 AM   #1
Join Date: Apr 2018
Location: NC
Posts: 58
Battery question

I'm currently designing and building a very moderate size solar backup system for our small (16 foot) travel trailer. I've done lots of research and reading but would appreciate your input on this battery question.

When using good quality batteries such as Crown or Trojan units is there a real advantage of (2) 6V units in series as compared to (2) 12V units in parallel? (Honestly, one 12V unit may be enough.)

We are VERY conservative with our power usage which will be primarily 2-3 DC interior lights, maybe 30-90 minutes of TV/DVD on a pure sine wave inverter every day or two, and recharge of a small SSD laptop every day or two.

Your knowledgeable input is desired. (No guessing please.)


Southern NC
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Old 01-06-2020, 11:30 AM   #2
Senior Member
Join Date: Aug 2016
Posts: 1,501
It's only a form factor.
Pick the configuration that fits your space.

Look at US Battery, too, in addition to Trojan etc. Or the classic Sam's club golf cart batteries...
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