Hello
This is a cheeky question for my land boat (A Vito camper conversion).
I am installing a leisure battery with a voltage sensing relay to charge it. The two batteries are quite close (passenger seat and drivers seat).
Can I ground the new leisure battery to the negative terminal on the starter or does it have to be to the body work? If I can, then can I also ground everything else to the negative on the leisure battery (as it's only about 1.5 feet to the cupboard that houses all the electrics). Or again, is there a reason that it all need to be grounded to the chassis / bidywork somewhere.
(I am assuming all the above could be replicated in a boat hence the battery whizzes may be able to help!)
Thanks in advance.