Updated the power system in our Camp/O/Matic.
When purchased it had two 60AH deep cycle batteries in an aluminium toolbox on the drawbar. On our first trip away, this setup wasn't sufficient to drive our Waeco 50lt (configured as a fridge) and Engel 21lt (configured as a freezer) for any more than 8-9 hours. I have to admit that it was cloudy, so the solar panels weren't contributing very much.
We purchased two 165AH AGM deep cycle batteries. They are too big to fit in the toolbox, and too heavy (47kg ea) to have on the drawbar. We decided to sacrifice some of the under bed storage and install them where they would have an almost neutral weight, ie over the axle. Re-routing the wiring was a major pain as it runs through various box sections that make up the chassis. I mounted the solar controller at the end of the bed, where it is a lot more visible than its previous position in the toolbox. Also added a Ctek MXS25 and wired that up permanently to the batteries, and utilised one of the internal 240v outlets. Only part of the job I am not 100% happy with is where I had to put the Anderson plug for the solar array. It used to sit on the outside of the toolbox. It now sits on the outside of the camper body. Added a master switch inside for the trailers 12v systems.
1. I forgot to take before photos, so just mocked the old batteries up to show the basic configure as it was.
2. About 3/4 the way through the job.
3. The solar controller.
4. The finished job with everything but the under bed draw in place
5. 12v master switch
Cheers.