I would be checking the alternator charge rate and also have a current draw test done on the battery. This will isolate any circuit that is drawing down on the battery with everything turned off. I doubt that the handbrake is the source of the problem, but you will have to test each brake actuator to see if power is being applied when the hand brake is applied, start here.
Monday, January 2nd, 2017 AT 12:37 AM