Forgot to Turn On Alternator After Start - Did I Damage My Battery?
After many years away from GA - I'm a senior captain at a major U.S. air carrier - last year, I purchased a 1977 172 Hawk XP II.
I hadn't been able to get up in my airplane for a couple of months, so last week, I went out to my hangar and cranked the engine and ran it for about 10 minutes, in an effort to charge my battery, and get the oil moving around the crank-case.
Yesterday morning, after flying about 40 minutes away from my home airport, upon landing, I realized I had forgotten to turn the alternator switch on after starting the engine. Instead of getting breakfast, as originally planned, I kept the engine running, with the alternator switch now on, and after about twenty minutes, flew back home.
(When I purchased the aircraft last year, one of the pre-purchase inspection "punch list" items I had done was the installation of a new battery.)
Did I damage my battery by allowing it to get to a deep state of discharge?
(As I'm sure I'm the only one on this forum who's ever pulled this kind of DS, flame on...)