Allen,

No such thing as a dumb question. This is what I think I know!

Voltage reading vs percent charged.
12.6v 100%
12.4v 75%
12.2v 50%
12.0v 25%

If your meter reads around 12.5v your golden, as Brendan would say..With the truck running, you might see as high as 14.3. This is true with an alternator, but I don't know if the GEN will do the same thing.

Your meter is telling you the "pressure", or voltage in the entire system. Did you read the manual? Bad boy! wink

Stuart