Glen1978 wrote:
...Is the dual 6V setup better than doubling what I have now?...
It's not really about 6V vs 12V its about the fact that any deep cycle battery you buy is also made for starting, which mean thinner plates, which means less tolerance for deep discharge. Your battery may be rated at 125AH but if it only tolerates a 50% discharge before you damage it, you are only getting half that,
The trojans are golf cart battery and made for this type of abuse. I would have done that myself but I had a tent trailer at the time and bought an AGM Solar rated battery. If you don't need to keep it inside or have an externally vented compartment, go for the lead acid Trojans.
If I were in your shoes, I would look for a reasonably priced solar specific 12V battery to add to the existing one.
Sounds like you paid good money for it, what model is it?
