By "under load" I mean to start it & run at fast idle. Turn on your lights, heater & anything else that draws power. Put a voltmeter (multi-meter works great) on the generator output and ground. If it's not putting out over 7 volts you've found your problem (at least you know it's not the battery).


Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.