We had a problem with our breakaway battery losing it's charge when the van was not in use, to overcome this we came up with a simple solution using a 10 watt solar panel with its own regulator connected to a lead outside the van using a cigarette lighter socket. This keeps the battery fully charged, problem solved. We still use the 240v charger when on power. Bessie
Used to have the same problem so when I purchased a replacement battery I also bought a trickle charger just for the break away battery now I plug the van into power at home when not using the van and leave it on charge along with the house battery for 48 hours once a month just another alternative that works for us
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As my Breakaway is charged from the vehicle when driving and therefore gets no charge if camped for a fair time I set up this 3-stage 12v 1.6amp Smart Charger. I got it from SuperCheap on the recommendation of an electrician.
If I have been camped for a while and have done very little driving as soon as I get to 240v I just switch this little monkey on and it returns full charge and keeps the batter topped up nicely until I next drive.
[edit: ignore the rolled up extension cord to the right - it has nothing to do with the Breakaway or its charging]
Cheers - John
-- Edited by rockylizard on Saturday 9th of January 2016 04:49:56 PM