Ok, so got my main batttery, under stea in ford transit.
I have second battery in the rear for wfp.
battery1 > live to slpitcharge relay > 2nd battery
earth from van body > 2nd battery
it seemed to work fine, for a while, however, now i cant hear the relay "click" in, and on several occasions, the 1st (main) battery has been dead, although the relay i use is designed to protect the main battery. this is the 2nd relay i have bought,
any idea's
?? or reccomend a split charge relay, that does it's job?