Losing the weight without losing the convenience

Something I forgot to add, kinda off topic, is that there is a direct correlation between a batteries weight and it's performance. A lighter battery will, 9 out of 10 times, not preform as well. If you camp without hookups that is not something I would lighten.

Optima's reputation has also gone a long ways down hill lately, and they don't even list RV as an application.

I would look to some of the other true deep cycle batteries.