Agree that best bang for the buck is a pair of Costco 6volts. That's what I have on my 21RBS. Heavy buggers, but can take more abuse (low draw downs etc).
I'd venture the 'best' today is Lithium Ion - the more the merrier. Suspect I'll go that route next time around just because I'm getting to the point where I don't look forward to lifting them 6 volts.
The cheapest would be that group 24 auto/marine that many campers come with...
I'd venture the 'best' today is Lithium Ion - the more the merrier. Suspect I'll go that route next time around just because I'm getting to the point where I don't look forward to lifting them 6 volts.
The cheapest would be that group 24 auto/marine that many campers come with...