Here are some pics of a 3000 watt inverter I installed under the bed in my motorhome. It will surge to 10,000 watts. It runs the large microwave, toaster, coffee pot, even the rooftop air ocnditioner at night. It serves as a heavy duty 3-stage charger also, when AC is applied. The battery bank shown consists of a pair of 6-volt Trojan floor-scrubber/golf-cart batteries. They are 400 Amp-hour batteries, but require probably more power than your O.B. can put back into them in a short period of time. It all depends on how deep and often you plan to discharge them. I charge them with the motorhome's generator. Based on the battery bank size, the inverter's charger can force hundreds of charging amps into the batteries. When out for days, this allows the generator to be loaded heavily during charging, and ultimately runs the generator less minutes per day than lightly loading it every time just a few hundred watts are needed here and there. If you don't need the inverter to charge, you can purchase a physically smaller inverter for similar wattage output. The DC wiring shown is 000-gauge. Both batteries total 200 pounds.
