Paul Eastham said:I don't have an aft battery so I haven't studied the issues, but...If it were me, I don't think I'd want an always-hot, unfused, heavy-gauge line (or two?) running all the way through the airplane with no way to shut it off.
Mike S said:That is what the master solenoid/contactor is for.
The hot line forward is run through the master. You are right about it being unfused, though.
Mike