So the charger should put in 24 x .75amp hours per day = 18 amps per day. The battery should be 90 amp hours battery so a impossible completely empty battery would charge in about 5 full days.

On would figure the battery should have more than half charge and.I would hope 3/4 or more so one.would.figure in a day or.at.most.two it.should.show fully.charged.

So here is a question if my battery is 20 percent low now what stops it from going lower and lower til it is out of juice? Can this happen with design of the charging system in these cars? Should I put the trickle charger on it maybe once a month to avoid the possibility of flaky things from a discharged battery?