Patrol GU Dual battery earth point

Josh,
I put a 2nd battery (deep-cycle) kit in my GU 2.8TD ST.
For the POS+ I ran continious 8mm dia multi-strand regulation heavy duty copper battery terminal cable to the rear where I have several outlets in the back for Fridge etc. The earth at the battery I put on the adjacent body structure at a previous tapped hole where the battery bracket was to be anchored under the bonnet. At the rear I terminated the POS+ with an insulated terminal block & ran 5mm copper via a Fuse Block (marine) for the + connections. The earth terminal at the rear I also used 5mm copper to connect from bodywork to the plug connector etc.
This was installed 3 years ago, there has been no problems running a compressor type fridge with no voltage drop. Freezes the beer that's the problem.
Also there has been no corrosion on the chassis connection points.
The POS+ cable was run external under the GU along the chassis hence you have to ensure the cable is kept away from moving parts, the exhaust & is securred sufficiently to prevent fretting of the insulation by vibration at any point.
Sounds like it is a bit overdone but I would rather do a little bit extra than have the system fail on me in the bush or have a fire etc.
Hope this is of some help.
cheers
Donald

Josh,

Theres a natural earth point on the motor, on the passenger side it the thing near the tray you'l be fitting, lemme know and I'll take a pic of mine of ya need it.

All the bestSo many places to go!
So much work to do :0(

Stuck mine on with the clump of standard earth wires just behind the passenger headlight. Guy i bouyght the kit from suggested running another cable to the engine also. Belts and braces. make sure you scratch the paint for contact.

Thanks to all for the replies. Used an earth point straight onto the chasis. Put all the components together today. The Trailblaza is in the back now on freeze, been on for about 6 hours, and so far so good.
Thanks for the help
Josh

Hi Joshua,

Hate to come in late, but two earth points is best - one to the body and one to the engine. The engine one is the most important as it allows your battery to be recharged at the maximum rate by having little if any voltage drop.

Phil