12V vs 6V
Recently bought our first travel trailer, and it has been quite the education, including understanding the dual electrical system. One thing I am thinking about doing is adding a 2d battery. I have ...
Forum Discussion
ktmrfs wrote:
If you dry camp a lot, then a pair of 6V has an advantage of more AH ...
Not necessarily ... a pair of G31 12 volt deep cycle batteries will offer similar AH capacity to a pair of GC-2 6 volt batteries. Apples to apples. ;)
ktmrfs wrote:
... and the ability to withstand hundreds of discharges to less than 50% of capacity. Something 12V aren't real good at.
Also, if you intend to run a very heavy load (>100A) like inverters etc. for > a few minutes at at time, and do it fairly often then 12V offer an advantage in that they have lower internal resistance and are much better at high current draw situations.
I would be interested in seeing supporting documentation to both these claims as my primary interest in upgrading to dual batteries from my current single G27, aside from the fact it's now 8 yrs old, is that I am now running a 1K inverter for those times we don't have on-site shore power available. My current single G27 has handled the task surprisingly well so far but a dual set of 12s or 6s would obviously make the most of what this inverter can do for us. As such I'd be interested in any further information regarding these two claims ... got any links? :@
