Camper Battery

Best option I reckon is an Arrid Twin Charge.

This takes voltage supplied from the vehicle and ups it to full charge and manages charging of trailer battery.

About $240 dollars and needs 20 amp supply from vehicle.

Option 4 is better.

Leave your existing setup as is, assuming you have an existing Isolator in the dual battery setup. This will ensure your starting battery gets first priority in charging needs from the alternator.

Connect a heavy duty cable from the positive and negative terminals of your auxiliary battery with an in-line fuse on the positive wire and run to the rear of your vehicle, terminating in an Anderson connector.

On your camper, install a cable which connects to the vehicle's Anderson connector and terminate adjacent to the Camper battery with an "Arrid Twin Charge" unit, which in turn is connected to the remote battery. This setup allows for a lower input voltage that often occurs from a long cable run (voltage drop) and will boost and control the voltage going into the camper battery.

Both the vehicle auxiliary battery and the remote Camper battery will be charged at the same time by the vehicle's alternator.

Hi Ian1946, for the best results, start by running thick cable from the vehicle’s auxiliary battery to the camper battery and then you will save a bundle because you won’t need any thing like a step up inverter as the vehicles alternator will be able to charge the battery as quick or quicker, depending on how large the camper battery is.

Next, with the thicker cable installed, you won’t need to add an extra dual battery controller and while you are parked, if you have the vehicle and camper connected, you can shear the camper’s power requirements between the camper battery and the auxiliary battery giving you a longer operating time between charges.

Here’s another option that can keep you camper battery charged while you are camping. If you have a battery in the camper then you need to keep it serviced while the camper is at home and not in use. The best way to do this is with a small 2 stage battery charger. If you have this size charger and have or can buy a suitable sized 12v to 240v inverter to power power the battery charger, then while you are camped and if you do some driving during the day, leaving the camper at the camp site, when you get back from your drives, hook the inverter up to the vehicle’s auxiliary battery and power the battery charger up to charge the camper’s battery over night.

One of the advantages of this set up is that you don’t even need to park close to the camper, just hook up the inverter and run a standard 240 vac extension cord from the inverter to the battery charger, which means you can have the battery charger set up permanently in the camper for use at home or while camping.

This set-up works out a lot cheaper than having to get all the other gadgets and has a number of advantages the other options don’t.

Cheers.

Hi Ian

I have put a few drawings up on my site.

Have a look here F.A.Q. it may help.

Regards

Derek.

Hi Ian

I have had a note on the listings and on my website that I am on holidays till the 10th.

I just got back today.

All post will be done over the next few days and go out on Tuesday.

I was at the factories packing our containers. We have 3 container due over the next 3 weeks full of goodies.

Thank You for the referrals.



Regards

Derek.