I HAVE A SPLIT CHARGE RELAY IN MINE,WHEN VEHICLE BAT IS CHARGED SWITCHES OVER TO THE LIESURE BAT THEN,SO IN WINTER I JUST PUT VEHICLE BAT ON TRICKLE CHARGE AND IT SWITCHES THE RELAY AND CHARGES THE LIESURE BATTERY.WHISLT ON SITE I HAVE A LEAD ALREADY FED INTO ENGINE BAY WHICH EFFECTIVELY IS A TRAILING LEAD AND JUST PLUG A CHARGER IN AND CONNECT UP THE LIESURE BATTERY,SIMPLE ENOUGH AND WORKS,BESIDES I STARTED RUNNING OUT OF ROOM AFTER FITTING RCD UNDER BUDDY SEAT AND THEN A DIESEL EBERSPACHER UNDER THE BED.
REGARDS.
SHARKY :sick0019: