[bushpilot]

Sam - same type means size (group). I'd go w/ a deep cycle though, any brand will work.

All the deep cycles i was able to find & price have the same (1 yr) basic warranty.
I went with some from auto zone & i use a battery tender to keep them maintained, going on 4 years now w/out issue.

I just added a Qwik-Fill system to keep the battery electrolyte topped up...im not enamored with the system, i broke a few of their parts (my fault) but the system seems a bit delicate.