I have a 10K Generac Guardian system. The battery in the system goes dead after a few weeks. I have replaced the battery a few times so I know it's not a bad battery. I am assuming the trickle charge circuit of the unit is bad. If I disconnect the positive battery lead and test for any ''charging'' voltage coming from the machine I get nothing, 0 volts. I assume I should see 13 volts or so to keep the battery charged. Is there charging module or somethingh that could be bad? The unit runs fine and self tests correctly until the battery dies in a few weeks. If I connect an external battery charger the battery will take a charge and be fine for a few more weeks.

Electrical Supplies - Guardian