Spare wiring

It sounds like the RJ12 cable that, usually, connects the charger to its remote readout/control panel.

Thanks for that...it is that type of cable but is tailed off.
There is a battery indicator fitted (one battery) but it is working so presumably this cable is something different. We purchased the van a month ago and the person who had it from new did not have any info on what the cable is. It may have been intended for a second battery to the indicator when/if needed. Not knowing the requirements for that type of meter I dont know if a second wire is required to connect a second battery to the meter.
I was hoping it may have been set up for telephone on the Omni antenna but it looks like it was fitted and a second wire wasn't provided.
Thanks again.

Hi
We have a similar cable in our van. It leads to the remote starter switch up on the top cupboard for the inverter.
Cheers
Spydor & Robyn

Thanks Spydor & Robin....we have an inverter but its next to the charger,,,nothing in the cupboard up top except battery gauge,entertainment unit,HWS switch, & 12v switch/fuses.

Hi DunnaRunna,

Me thinks Spydor is correct.

I will put it another way - Where is your switch to turn on the Inverter? & what wire goes into that switch?

Dunna,
Sounds very much like a cable to a remote panel for a battery charger, an inverter or a solar regulator. Failing that it could have been used, given it sounds like it is now disconnected as a battery sense wire or a battery temperature sensor wire.
Cheers, Bill

Thanks all....firstly the only switch to activate the inverter is the one on the inverter itself. To switch it on necessitates lifting the bed or accessing through storage door.Not convenient but true nonetheless. This will be addressed in due course.

It is more likely that the wire was once hooked up to a second battery that has been removed. I will investigate this possibility further.
Thanks to all for your input.