6 volt vs 12 volt batteries for boondocking
Hi all, While waiting for our new 28' Stealth toy hauler we're trying to figure out the best batteries to get for when we're back in the hills camped off the grid. We ordered the optional 200 watt ...
Forum Discussion
MEXICOWANDERER wrote:
Cutting to the chase...
The 3 cell battery offers more cycles and can take more abuse.
Comparing apples to apples, has that definitely been proven in controlled studies between an equivalently built 3 cell (6V) deep cycle battery and a 6 cell (12V) deep cycle battery?
.... Because even though each of two 230 amp hour 3 cell batteries's active electrodes have twice as much mass as that in each of two 115 amp hour 6 cell batteryies's active electrodes - the current density per unit of active electrode mass that the 3 cell battery must deal with is twice as much.
Hence, electrode life ("errosion or otherwise reduction") should be the same in each equivalent amp hour array - whether it be 3 cell or 6 cell. Of course, this is given that all other construction/design aspects are the same between the 3 cell (6V) deep cycle batteries and the 6 cell (12V) deep cycle batteries.
I see no electro-chemical reason(s) why cycle life can't be the same between a high quality 3 cell (6V) deep cycle lead acid battery array and a high quality 6 cell (12V) deep cycle lead acid battery array. It's just that the two battery types are shaped differently, so one or the other may fit better in any given RV's battery storage compartment.
