Scores on the doors
Leisure reads 12.25v at rest, this would not fire up diesel heater, 3 lights lit
Van idling 13.73v
Charger on 12.91v, 4 lights lit = 1st green lit
24hr ehu from 13A socket, left for 1 hour, 12.58v, 4 lights lit, 1st green comes on at 12.5v, Final should be at 13.5v
Starter...