over-voltage

[Dale Campbell]

I did shut every thing down and wait, as you mentioned, and followed the power back up procedure. But, as soon as I put the first alternator back on, the breaker poped again. That morning when I started my flight, I had to get a battery jump to get it started. I did not fly for 6 weeks and the battery was dead. I though when it started to charge,it over charged.
Because it was 2 hours into flight before the over voltage light came on and breaker poped.
After I drained down the battery by not turning on alternators for a half hour the battery was no longer over charged and when I turned alternators back on after that all was normal again. Problem never came back, so I forgot about it. I did purchase a battery charger with maintance feature that GMAS recommended on this site and I leave that on now when not flying. It seems to work great. Dale