Guys,
My daughter's T5 has an LB which charges from the engine using a simple split relay. There have been 2 issues:
1, She left the van unused for 6-9 months with the LB connected. There was a 30-40mA residual current draw which over time has knackered the battery,
The LB is installed under the drivers seat which has to be totally removed to gain access to the LB. I am intending to add an easy-to-access battery isolation switch as a fix..
2. There is no charging of the LB from an electric hook-up.
My plan is to add a (cheap, £15) smart charger powered from a fused/switched 240v supply from the van's hook-up mains distribution board and permanently wired to the (hard-to-get-to) LB. Since these cheap chargers actually draw current from the battery when not main's powered to display battery state, I also plan to connect the charger to the battery via a mains powered relay theu disconnecting the charger from the LB when not on hook-up.
See diagrams below.
Does anyone have any conmments?
Is this set-up OK? One concern I have is the possibility of running the van engine whilst on hook-up and possible side effects of mains charger connected whilst split relay is activated?
My daughter's T5 has an LB which charges from the engine using a simple split relay. There have been 2 issues:
1, She left the van unused for 6-9 months with the LB connected. There was a 30-40mA residual current draw which over time has knackered the battery,
The LB is installed under the drivers seat which has to be totally removed to gain access to the LB. I am intending to add an easy-to-access battery isolation switch as a fix..
2. There is no charging of the LB from an electric hook-up.
My plan is to add a (cheap, £15) smart charger powered from a fused/switched 240v supply from the van's hook-up mains distribution board and permanently wired to the (hard-to-get-to) LB. Since these cheap chargers actually draw current from the battery when not main's powered to display battery state, I also plan to connect the charger to the battery via a mains powered relay theu disconnecting the charger from the LB when not on hook-up.
See diagrams below.
Does anyone have any conmments?
Is this set-up OK? One concern I have is the possibility of running the van engine whilst on hook-up and possible side effects of mains charger connected whilst split relay is activated?
