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
TBammer wrote:
I think for now I will add a 12v in parallel. The trailer has an angle iron trough that would easily take another one.
Paralleling an aging battery that's already seen several years of service with a brand new one off the shelf is a poor idea ... far better to run each independently from the other, switching to the second battery when the first has been depleted to ~ 50% or ~ 12 volts unloaded. As already mentioned you can do this manually or for greater convenience with the use of a switch such as the Blue Sea version I referenced to earlier.
