How to Increase Battery Capacity

Ivylog wrote:
*snip* Buy a heavy set of jumper cables. Once a day when boondocking for an hour, use them and your tow vehicle to charge your new batteries.

This is our recharge mode for the few times we have boondocked for a few days. A one hour truck charge in the morning gets us to the next morning. I'll hold the RPMs at ~1500rpm for the first 5 minutes or so. This is where my alternator is good for about 130A, not saying the battery it taking that much. After that I'll let it idle which produces ~60A. This is taking place on private property without other campers close by so engine noise is not a issue.

My next move would be a portable solar panel if I forsee staying off the pole for more than a few days. Bulk it with the truck and absorb with the panel. Adjust the panel direction during the day.