What kind of batteries to get?
We just bought our first RV. It's a 20' Fleetwood travel trailer. We're going to pull it with a 1-ton Dodge Maxivan. It came without batteries. There is space for two batteries. Now, it has a propane ...
Forum Discussion
tjcooper wrote:
QUESTION: I read the 10 page thread review on "one 12volt vs two 6volt battery" section from the 2008-2011 time period. It appears to be a closed thread. From above I see there are like 100 threads on the 12volt parallel vs 6volt series debate. Can someone point me to a good "truly technical" discussion of deep cycle of the parallel vs serial debate?
I have a Ph.D. in physics and deal with NiMh and LiPo batteries on a daily basis. With those types of batteries it is always better to have the SERIES configuration over the PARALLEL type. I have no idea if the same properties hold for the Lead-Acid type. I want to understand any differences.
I think you've answered your own question:
Threads on here are not "truly technical" discussions.
A Ph.D. in physics knows that series is better.
I'm in the solar industry and build a lot of big battery systems. Standard practice in this industry is that one series string of cells is best. Use 2 strings if you really have too for some reason. And 3 strings is the absolute maximum if you want the batteries to even remotely charge and discharge evenly.
Most arguments for parallel 12v cells involve: they're cheaper at some big box store, I'm not strong enough to lift a big 6v, or something like that.
