What is the best way to charge battery
We boondock a LOT in the National Forest Service Campgrounds. After 2 to 3 days, the batteries need some help. I have a Honda EU2000 generator that we use sparingly to be respectful to other campers. Our Surveyor is relatively new (2008) with a 3-stage converter. I can think of 3 ways to re-charge the battery using the generator:
1) Plug the trailer shore-power into the generator. Power the whole trailer and use the converter to re-charge.
2) Plug a battery charge into the generator and hook straight to the battery
3) Use the Honda 12-volt charger accessory into the generator and hook straight to the battery.
The first option has the added benefit of running some other things while charging; like a computer, hair dryer, or re-charging your camera/gps batteries. But outside of that, what do you think is most efficient?