Earthing to chassis (Daft question)

[JonB]

Just putting a leisure battery under the RnR bed and needing to earth the battery (and a few auxiliaries).

Whats the best way;
Self tapper and a big washer into the chassis.
Bolt to the same location the bed attaches to the van.
Bolt to the RnR frame which in turn is bolted to the chassis.

[California Dreamin]

Your leisure battery deserves a GOOD earth.
So: A separate 6mm post (drill a hole, scrape around the hole to bare metal, put a 6mm bolt through that hole from the back and fasten using a washer and nut) now this can be used as a perfect earthing point (paint once afterwards to protect from corrosion.)
Remember that the Leisure battery could draw 30 amps plus on initial start so a self taping screw or fixing to a hinge isn't good enough.

Martin

[JonB]

Nice one, thanks for that.