Reply to thread

Sounds familiar.

Bus wouldn’t start with my pricey-ass gel battery.

With jump leads it started and ran fine. Charged fine. Ran it for about 45 minutes. Should have been plenty. Then, it would crank, but not start. Rinse, repeat. Frustration.

Finally put a load test on it. 10 volts.

Replaced it with a new, normal, lead-acid battery. Problem solved.