It's never died but I get a warning after a week or so in winter.
Ablemail AMT12 installation
- Thread starter Skyliner33
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Most we have done is 3 nights and not had a warning. Could it be your SB is on it's way out?
It's possible as its been in since new. Still want to get this thing installed and see. Took the seat out and more confused than ever
It's possible as its been in since new. Still want to get this thing installed and see. Took the seat out and more confused than ever
You need only three connections, a leisure battery positive, a starter battery positive and an earth. Your B2B already has all of these, so wherever that is you have the connections readily available. It may be you can stick it under the seat there if you also have starter positive available there - not obvious from the photo.
As an aside, you appear to have a Victron shunt installed to monitor your battery. You also appear to have three negative connections directly to the battery so any negatives that aren't going through the shunt (including your MPPT solar by the look of it) are bypassing the shunt and not being registered to calculate your battery SOC. You should have only one negative on the battery going to the shunt and all other negative connections hooked up to the other side of the shunt.
He also seems to be missing some fuses on the cables connected to the positive terminal.
That's interesting because the shunt was working until I had the solar panel installed. Not actually checked it since and now it doesnt even register. The B2B is in the second pic next to the fuse box. So one cable from AMT+ to that + terminal on the B2B, one cable from AMT+ to LB+ and then a ground cable from 0V on the AMT to?
Would you also recommend a fuse somewhere in line from the AMT?
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Positive terminal? Which? As far as I know there is a fuse for the solar controller/panel, another on the shunt and another....which i dont know what it does, so there are 3. I also bought a fuse for the AMT if its needed.He also seems to be missing some fuses on the cables connected to the positive terminal.
Fuse all cables as close as practical to the Leisure Battery positive terminal and appropriate to the cable gauge. (The other end may also need fusing, depending on what it's connected to)
Simon
Those 2 are missing fuses.
The 2 black cables circles in blue need moving to load side of the shunt. Or to a Negative bus bar (connected to the load of the shunt), as they wont fit on the shunt bolt.
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I think the smaller of the 2 positive cables circled is going to the fuse on the bottom right corner of the pic. This fuse was put in when the solar panel and controller were fitted by a conversion specialist.
I'll certainly look at getting thr cables moved for the shunt. Guess they didnt want to touch it.
Are you sure? It’s not connected to the MPPT at all.
So just checked and there are 3 cables going into that fuse, which has 2 x 25a fuses in it. 1 of those cables is the smaller circled one, another is going into the MPPT (PV+) its just routed underneath mat so you can't really see it, and the other is a negative cable going to the LB, which should be in the Shunt instead?
Something is amiss. If there are 2 positives into the fuse box then there should be 2 cables coming out. Also the cables coming out are also positive. They shouldn’t be connected to the neg battery.
You need to get that wiring looked at imho.
The solar panel and controller work fine as far as I can tell, but I'm slightly paranoid now
That black cable going from battery neg to that fuse box is doing nothing. There is nothing connected to the other side of the fuse. So no complete circuit.The solar panel and controller work fine as far as I can tell, but I'm slightly paranoid now
Well that makes sense.. so had another look, there are 4 cables into that fuse box. There is negative alongside the positive going into the MPPT.
There should not be anything negative to do with a fuse. You need to trace exactly where these wires are going.
Lemondixon
New Member
There’s a much easier solution you can use - It worked for me and I have pretty much the same set up as you (same Sterling Power B2B charger with a Victron solar charge controller and panel for LB - I just have the Ablemail unit with built in Bluetooth).
If you take a look at the instruction manual for the Sterling Power B2B Charger - see attached - at the diagrams on page 5 and 6, you’ll see that the terminals on the BB1230 give you a direct connection to the positive terminals (numbered 3 and 5 on diagram on page 5) for both starter battery and leisure battery (the negative is common, terminal number 4 diagram page 5) - I just connected the wires from my Ablemail direct to the same terminals there, along with the existing wires to the batteries and it worked fine first time and have had no problems since.
You don’t need any inline fuse(s) between the BB1230 terminals and the Ablemail terminals.
Hope that helps, but feel free to let me know if you need anything else
Thanks, I had already done it as I found a manual online and ended up putting the relevant cables in 3, 4, and 5 as you have suggested. Mine already had 2 cables into the negative (4) so getting a 3rd in there for the AMT was an utter nightmare, but managed it in the end. It seems to be working and programmed it to setting 7 quite easily. I found a hidden compartment under the B2B too, so hid it all away nicely.
Lemondixon
New Member
No worries. Glad you got sorted. Had planned to reply quite a few days ago but got sidetracked, but at least you got it all working 
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