straining tripac alternator?

That number is what the voltage is at the batteries. Here is a good calculator to figure out volts to amps. Amperage is the important number. Volts to amps (A) conversion calculator

 

The volt number does have some significance... When it starts dipping below 11 volts, you may find yourself in a no start situation. Your motor's ECM requires 10 volts to operate, get to that point or below and you may find yourself looking for a jump or a service truck. $$$$$$ Don't want to go there.

 

They're actually not fog lights, they are a sshole indicators.

 

Voltage is only part of the story.

You generate amps to a certain amount along with wattage.

Voltage is fine. 12 aint bad, but it's "Loaded"

You need to add up the amp draw of everything attached to that generator. If it's exceeding 80% of rated capacity you are pushing it.

Wattage has it's own limitations. For example a home icebox says it will run on 2500 watts, but to actually START it up you will probably need twice that for a short time.

Ive run my house off a generator for weeks at a time on our Generac, the trick is that everything attached to it either 120 volts or the big 240 for the dryer... is about half it's total output capacity. I can always add more stuff to it. But really don't need to.

If a stator and electric rotor is going to fail inside the motor, it's going to do it at the insulation between the copper wound coils. Once you apply too much amp, heat builds faster than it can be dispersed (Cooled) and eventually the insulation burns out and shorts the entire thing.