Fiat Ducato 2003 (2.8) charging nightmare
Hi everyone, I am new to th site so bear with me.... I was unfortunate enough to have bought a motorhome from a dealer in south Yorkshire (clues in the wording). To date it has cost me thousands to put right....
ANYWAY......
I have an ongoing problem with the charging system and really new some fresh views please. I have a 100w solar panel, a sargent ec200 charger manager, split charger and a strange sealed black box under the bonnet that has a l.e.d on it that is sometimes
red and other times green. Now my problem is that I can drive 200 miles, switch the 12v power on. But within minutes any leisure battery goes from 12.9v to 10v. I have tried several batteries (115ah). But if I switch to the engine battery via the control panel,
I can have lots of power for hours. I have wired houses so have a pretty good understanding. But this has me stumped completely. PLEASE help me someone, before I go completely insane.