Nigel&Debbie
Free Member
I have a 2013 Autotrail with the Sargent PSU. I have 200w solar system charging direct to both leisure and vehicle batteries ( by passing built in solar regulator in Sargent unit). I also have a sterling battery to battery charger.
Question. Do the different form of chargers cancel each other out / work against each other i.e. My battery to battery charger is capable of charging at up to 50 amps but only when the battery is in the right stage (discharged) however when driving down road on a sunny day, solar system is charging batteries (albeit only a few amps) enough to raise voltage to over 13 amps. Does this then trick the b2b charger to think that the batteries are charged thus causing the b2b to enter float charging mode? When you then bring in the direct charging system via the Sargent unit when engine is running, do we actually have 3 systems working against each other?
If the answer is yes, I can see an easy fix for b2b versus solar by simply fitting relay in solar system to cut connection to battery when engine is running thus allowing sterling b2b to do its job. However how do I get around the b2b versus Sargent 12v charger. I don't think it is a simple matter of installing another relay to cut connection as I have the fridge to consider!!
Anybody any thoughts or even better has anybody a solution so that I get the best out of b2b charger when driving?
Thanks
Nigel
Question. Do the different form of chargers cancel each other out / work against each other i.e. My battery to battery charger is capable of charging at up to 50 amps but only when the battery is in the right stage (discharged) however when driving down road on a sunny day, solar system is charging batteries (albeit only a few amps) enough to raise voltage to over 13 amps. Does this then trick the b2b charger to think that the batteries are charged thus causing the b2b to enter float charging mode? When you then bring in the direct charging system via the Sargent unit when engine is running, do we actually have 3 systems working against each other?
If the answer is yes, I can see an easy fix for b2b versus solar by simply fitting relay in solar system to cut connection to battery when engine is running thus allowing sterling b2b to do its job. However how do I get around the b2b versus Sargent 12v charger. I don't think it is a simple matter of installing another relay to cut connection as I have the fridge to consider!!
Anybody any thoughts or even better has anybody a solution so that I get the best out of b2b charger when driving?
Thanks
Nigel