?? 6 or 12 VOLT BATTERY ??

HVFDFIREFIGHTER wrote:
Is this a good charger: Schumacher SC-1200A/CA SpeedCharge 3/6/12 Amp Charger/Maintainer/Tester

or how about this one: Schumacher SSC-1500A-CA Ship 'N' Shore 15 Amp SpeedCharge Charger with Battery Clamps

Those are fine if you have all day. 15 amps is a bit slow on a generator. If spending money you are far better to get a 45 to 75 amp 3-stage converter that charges at 14.4 volts.

But I would far prefer 200 to 400 watts solar.

Typical microwave will take 2000 watt sine wave inverter and four batteries. A few low power microwaves or a Panasonic inverter microwave can be run on two batteries and 1000 watt inverter.