Join Date: Nov 2007
Location: Mid-Wales Coast
My Motorhome: Hymer Van 522
Thanked 49 Times in 47 Posts
Yes Karl, 200A fuse is OK.
As for which batteries - well the answer lies in the size of the cables linking the leisure batteries to the EBL and the capability of the relay that is operated by the EBL when the engine is started.
The relay connects the engine battery and alternator to the leisure batteries to charge the latter.
As in my original post - seriously thick and seriously capable.
Do you really need to go to all this trouble just for a hairdryer?
One suggestion is to run the gas blown air heating and connect an elephants trunk to one of the outlets and use that as a hairdryer.
Not as daft as it sounds - cost? Couple of quid at the most!