- Sep 17, 2008
Had the landing and nav lights on. They got really bright, then really dim, making about two or three complete cycles per second. The electric motor driving the alternator didn't appreciate the big load changes, either.Did you have any load on the alternator when you ran your tests? I can see lack of load making voltage excursions really wild with a contactor style regulator. Not an issue with solid state stuff. There is a bit more ripple in the voltage level due to the missing filter effect of the battery, but you often don't even know that the battery is offline unless you see the switch.