I'm wondering where the AMT takes its signal to start from? The XS or the Shunt?!
Keeping me up at night this is!
Easiest way to see if the Ablemail is working?
- Thread starter Skyliner33
- Start date
Keeping me up at night this is!
I don’t think it will kick in much given that voltage. Try leaving the headlights on for a bit to drag the bolts down and see what happens. From my experience the little spikes on the BMT trace are the AMT doing its business and keeping the battery at approx 12.2v. Here’s a pic of my old battery with the AMT keeping it alive at 12.2ish. You can see all the little spikes.
The reason I wonder if your battery may be on its way out is how quickly it is getting to 12.2v ish. My new battery takes a week or so to drop down to that even with the dash cam plugged in on park mode. Maybe the pics don’t give the full story and you’ve not driven for a while hence the 12.2ish.
If wired as per the instructions it should be from the XS input. That’s also the cable it sends its 3A charge down.
The shunt is normally just a thin cable direct to a vehicle constant live (or to the starter battery) to show the starter battery voltage.
North Yorkshire is close to Manchester isn't it?!!!
I'm on default setting 4 on the AMT, not strictly lithium setting, but it works well.
If your AMT is on setting 3, it won't be starting anything. Setting 3 only works when your LB is over 13.5v. Yours and my Roamer seem to settle at 13.2 unless driven or solar fed. You need to be on setting 4.
That’s only one part of the setup. If the SB gets to 12.1v and there is a >1v (0.3v in setting 4) difference between the batteries it will kick in too. This will happen until the SB gets to 11.5v then the AMT will shut off.
I've never let my SB get that low to test it! but a Roamer will be sitting at 13.2 or less, so setting 3 wouldn't be any good would it? Surely it's setting 4 all the way?
Looking at the instructions from the Ablemail website pdf then for our vans its narroed down to 3, 7, 4, 8. Although I dont get why the alternator type makes a difference as its trickle charging from the leisure battery.
Now I am going to make an assumption that "Battery Type" is the battery its charging, not the Leisure battery. So now down to 4 or 8.
When Jonathan fitted the AMT I am sure that he programmed it, so I am thinking mine must be set on 8. However to satisfy my curiosity Im going to have to go through the hassle of taking my electrics box apart and checking. Why didnt I think of this yesterday when it was apart to fit hardwired charging connection to the LB (which I didnt do and left the croc clips version on) Arghhh.
Why is the programming so awkward :/
I must have read that 100 times and the reprogramming bit still foxes me!
Get the BT module....
Then you can watch it working....
And play with the settings.
The app shows when the charge pulses are on, same as the LED on the unit.
Then you can watch it working....
And play with the settings.
The app shows when the charge pulses are on, same as the LED on the unit.
Just asking for a friend here, but can you change the cut off voltage on the LB on the BT module? Setting 4 works great, but that pesky 13v! Fridge comes on, LB volts go down below 13v, no AMT, I'd be buggered if the sun didn't come up!
I would love to reduce the 13v cutoff to something less so the AMT works through the night.
You can change all of the settings individually as well as choosing a preset.
I'm sure I'll find a klarna deal out there to ease the pain! What is it, an ABB007?
Yes... What price are they these days?
£84 on the Bay
Have you seen the new version with built in BT?
Amt12pro.
Looks like same thing but with built in BT?
...
Amt12pro.
Looks like same thing but with built in BT?
...
Ooh that looks good! Wonder if it does all the stuff the ABB07 does too?!
The van this morning....
Similar threads
