We have an eighty watt panel feeding two group 31 AGM batteries. In bright sun we can see a charge of 3.6 amps and 14.2 volts for 51 watts best we've ever seen charging. It's a slow losing battle but better than nothing. We have 4 gauge wire direct from the alternator via solenoid charging the batteries back up about as well as a Honda eliminating the need to haul around a Honda. We just don't need big AC power camping. A 400 watt inverter takes care of all the various charging needs as do 12 volt power ports. Eventually the plan is to install 300 to 400 watts of solar up top. As an option, you can also install a power port beside the battery to plug in a portable solar setup that you can move around to get sun. Just keep your eyes on them.
