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Just disconnected the charger. Was at 15 plus volts. Fired the truck. It took right off. Turned on lights, fan, etc. Was still getting in the 15 range. I will wait a while and do it all again after it settles down.
See youtube on how to perform a parasitic battery drain test.
Battery standing at 13.4 this morning after sitting for 10 hours since removing the charger. Will test the alternator when I fire the truck up in a bit.