magicsurfbus
Free Member
I made my own removable one for about £15 using a split charge relay I bought on eBay, a project box to contain it, some cable of suitable width, and an inline fuse. I use it when the MH is in storage with the leisure battery on solar, regulated to 13.6v, and at home when it's charging on EHU at 14.2v. I understand none of the complicated electronics theory, but it appears to work, with a detectable voltage coming through to the engine battery.
However, in winter the solar panel performance is so low that I have to drive the MH around a bit every few weeks to stop the engine battery going flat.
However, in winter the solar panel performance is so low that I have to drive the MH around a bit every few weeks to stop the engine battery going flat.