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Hi

I don't know how your van is set up regarding your main battery,why don't you fit a split relay charger on it very easy to do.everything in your van should be 12volt so a relay will do the same as 240,hookup.I have two good leisure batteries,the relay will firstly charge your main bettery, then your leisure batteries. The power you use i,e lights tv etc,will only come from your lleisure batteries, protecting your main one,every time you start your van up it starts charging.If you see a site you really like but has no hookup it isn't a problem.the size of your batteries doesn't really matter,but you need a relay to suit the size of them.I can't remember the exact size of amps you would need,so check with a good dealer.but a rough example is if you use a 90 ah battery relay would be about 100 amp two batteries wold be about 180,if you don't know to connect your batteries in tandem,get the autolec to do it.I hope this helps,make sure it is done by someone who knoows what they are doing.Happy camping.   

I think that the answer is....probably not!

Check your handbook and look at the instructions for the MH control panel.

hi simon

you have to treat motorhome 12v systems as two seperate items, road vehicle wise whatever a normal white van man runs is all powered by the vehicles electrics including vans battery & lights. motorhome side is run by the leisure batteries so all internal non standard white van stuff is run from these, hence the need for onboard battery charger, if you use too much power without being hooked up you will flatten the leisure battery only ( not the engine start battery ) when then engine is running a small charge is diverted from the alternator via the split charge relay to top up the leisure battery when in motion, it only flows one way so your onboard charger wont charge the vans standard fit engine start batttery

mick