Domestic battery bank shows 11.8v, charger on «*float*»...
- Thread starter Kukri
- Start date
Kukri
Well-Known Member
Indeed you did. Many thanks.
My reason for calling on the Berthon is that their workshop is 200 yards from the boat and I am 205 miles away.
dom
Well-Known Member
Good idea to get this sorted ASAP.
BTW what has the split diode got to do with the Sterling Charger, which has 3 independent outputs?
BTW what has the split diode got to do with the Sterling Charger, which has 3 independent outputs?
PaulRainbow
Well-Known Member
Nothing at all, the diode is there to split the alternator charging.
PaulRainbow
Well-Known Member
In post 2 you said an internal diode inside the charger, that's not what has been diagnosed by Berthon.
PaulRainbow
Well-Known Member
The split charge diode shouldn't be for the mains charger, it should be for the alternator. But if you do need one, I've got a used one on the van you can have for nothing.
PaulRainbow
Well-Known Member
ith three battery banks you would need two VSRs, better to fit a three output Victron Argofet.
In fact, now i come to think of it, if you really do need the diode replacing (still don't think the charger is connected to it). it would be wasteful to buy a new diode now and then change it in the Winter, the Argofet is a drop in replacement, as far as the alternator and battery cables are concerned, it just needs a light weight negative cable, connections for that are close by.
W
Graham376
Well-Known Member
Most chargers are single output with either a split charge or separate diodes internally to feed the different outputs so I assume it's the internal one referred to.
pvb
Well-Known Member
Most chargers I've seen have multiple outputs. The OP has said he has a Sterling 1250CED, this has 3 isolated outputs. These should ideally be connected separately direct to his 3 battery banks, not via a diode splitter. A bit of rewiring is required.
Kukri
Well-Known Member
Yes, it has three outputs. The two outputs to the two starter batteries were fine; the output to the domestic battery was not charging at all. I asked the yard to check thinking I might have inadvertently displaced a wire. They rang back and said that a diode in the charger had, most unusually in their experience, failed and should be replaced; they said they could get one tomorrow at a cost of about £100. I asked them to go ahead. I hope this clarifies things.
pvb
Well-Known Member
Ah, OK, now clear. In post 18 you said "Split charge diode has gone pffft" which rather suggested a separate diode splitter.
halcyon
Well-Known Member
Are you sure ?
That type of failure the first obvious failure point is a splitter diode, if that proves okay, then you move on, though that is from a design's stance.
Brian
