AK replied:

Greg,
I had something similar in my Suzuki. I had a solenoid DBS wired in the engine bay via a circuit breaker to a 50A Anderson plug behind the passengers seat. I then had a sealed battery set up with 2 x female hella outlets on it ( 1 for fridge 1 for lights , both fused) as well as a lead with the other Anderson plug on it.

The set up worked like this the spare battery lived in the garage, when need it was stapped behind the front seat and the Anderson plugs connected. Electrically It worked very well , the only problem was the space it took up, not much space but I didnt start with much space to spare in the Suzi.
Hope this helps
AK

herkman replied:

Being in the same boat, we looked at all options, but ended up putting it in the pop top.

The problem is that no longer can you install gell type batteries, without meeting venting requirements.

Whilst this may not stop you carrying the battery in the rear, you need to mount it in a food container, with a tight lid.

Using a 1/2" elbow, you could vent the container overboard that way. On our Tribute we used a Parina DBE 150S MK111 and it does a good job. We mounted ours on the air cleaner housing.

Regards

Col Tigwell

Member - Richard replied:

I do not have a lot of space under my bonnet so I elected to use a Bushranger Power tank. (I have a Frontera.) During the day I charge it whilst I am driving and at night I use it for the fridge and lights. I tested it when I first brought it and found it ran my Engel fridge continously on no 2 setting for two days. At about $200 it was cheaper than $750 for a second battery.
Hope this helps.

Richard and Leonie, the grey nomads