*Newbie alert*, I've recently bought an old Mercedes 811 and I'm having trouble with my leisure batteries. I'm pretty sure they are dead, I took them off and charged them for 2 days and got them to 14.4v. Last night they failed drastically, I've disconnected them this morning and they are reading 9.5v, so done for?
My question is: how do I check if my on board zig unit is charging correctly?
Tia.
My question is: how do I check if my on board zig unit is charging correctly?
Tia.