Adaptto Mini-E/Max-E Owner's Thread

Hi everyone. I’ve just been balancing the battery pack on my bike with a Max-E through the BMS. Was fine an hour ago, then went to check on it and everything is off and won’t switch on again. Has anyone else had this happen? Did you resolve it? Don’t really know what to do next. Thanks.
 
Jackrabbit said:
Hi everyone. I’ve just been balancing the battery pack on my bike with a Max-E through the BMS. Was fine an hour ago, then went to check on it and everything is off and won’t switch on again. Has anyone else had this happen? Did you resolve it? Don’t really know what to do next. Thanks.
Click to expand...

I had this exact thing happen, and so did a friend. We both had to send controller back to Russia, and were not given an explanation of what broke, but adaptto did fix it and charged me about $30usd
 
Thanks. I’m wondering if I can get someone local who specialises in PCB repairs to fix it. Sending it back to Russia is a real pain. Has anyone had success with doing that or are these controllers to specialised?
 
I am leaving my bike on to balance. The balancing actually got worse.

The top picture is the current balance at .012 volts.

The bottom was .010, even .009 volts before I started. Why is my balancing not getting better but worse?

I know its balancing because I can feel the heat through the frame where I put my BMS.

After balancing:
CY89JDm.jpg


Before Balancing:
C6YJO1x.jpg
 
Offroader said:
I am leaving my bike on to balance. The balancing actually got worse.

The top picture is the current balance at .012 volts.

The bottom was .010, even .009 volts before I started. Why is my balancing not getting better but worse?
Click to expand...

Most BMS and the one from Adaptto too has an accuracy of around +-10mV so you cannot expect more.
If you do a voltage calibration with a good DMM you will see what i mean.
The other thing is that during balance the themperature varies which usually makes accuracy worse (temperature drift).

If you wanna do your perfectly balanced battery a favour, don't let the BMS touch it until the voltage exceeds a given value (optimal would be a tad bit higher as the max charge voltage).
 
I do remember Allex once saying that the adaptto bms had an accuracy of plus/minus 20mv. When i built my battery pack i measured each individual cell before assembly and they were all within a few mv of each other. Once the pack was built and connected to the adaptto bms it read there was a 20mv difference between the parallel groups.
 
Look at this, left it on for 2 days and it went to .020 balancing.

Notice how every 5 cells started to get really out of balance, exactly like in that other post. If I didn't turn this thing off it would have sent my whole pack out of whack. I may have to even pull this damn pack which is a pain, just to balance it out manually and just use the BMS as a monitoring tool.

its not worth using to balance the pack at all, just to monitor it. Wish I never turned it on to balance. I figured it would even out all the bars at least. I know it may not be perfectly accurate but it was reasonably accurate when I compared it with my fluke volt meter.

Its one thing if the voltage sensors are not perfectly accurate as my fluke meter, but another thing if it can't even out all the bars and have the software level everything out to .002 volts.

If I left this crap run it would keep going from .020 to .030 to .040, keep increasing. total junk.

hmIskQJ.jpg
 
Here is the post where ziltoil81 had every 5th cell go out of whack, similar to what is happening to my pack.

https://endless-sphere.com/forums/viewtopic.php?f=2&t=61183&start=5000#p1438469

img-20160106-wa0000e7ubi.jpg
 
Spoke with Ziltoid who had the same balancing issue, it could be that I"m balancing at too low a voltage as he think that may have fixed his issue. I set my balancing to be done at 3.5 volts, which may be far too low for this controller.

I'm going to try balancing closer to 4.2 volts.

In bigbore post you can see his balanced to .002 and his pack voltage was 4.18 to 4.2 volts. I'll give balancing at a higher battery voltage a try and see if it does anything.


Here is bigbors picture of his balanced to .002 volts at 4.2 volts pack voltage. Mine should probably be able to do the same.
20190105-123116.jpg
 
In most cases, If you balance out the cells at 3.5 and then charge them to 4.2, all of them will not be equal at the top. Same goes if you equalise them at 4.2. Later when you drain the cells to 3.5 all of them will not be even.
So find your favourite spot where you check the cell balance - be it at the end of the ride at 3.5 or in the beginning at 4.2

Here is a new pack, never been charged and the diff is 0.004V. When this pack is charged to 4.2 the diff is is around 0.020
When I then drain this pack back to 3.65 it is back at 0.004V

It is also very hard to balance out the cell on huge packs. Current is so low that the cells self discharge faster because the controller is on In this case you have to top it up with charge a bit and in most cases lower(change them) the balance treshold several times during the balancing. Much easier to balance at the top in this case because you have less energy up there. It goes much faster to drain a cell from 4.2 to 4.1 rather then from 3.6 to 3.5
uc
 
The first thing I noticed as I got this BMS is that it was balancing worse (maybe it pulls too little current to balance the higher cells) than my iCharger 1010B+ that balances up to 10S in a very accurate manner also if the cells are pretty old and degraded. It was with my older battery made with LG HE2 now with the new VTC6 cells is working much better but I think it depends on the new better cells.
 
Allex, you can see in the pictures there is probably an issue with the adappto BMS being that the 5th cells seem to be much higher than the rest.

The longer you leave it the worse this gets, just like in the picture I posted showing the cells going out by .070 volts.

I believe if I balance at 4.2 volts it may balance everything to .002 volts. Then even if I do fall back down to 3.5 volts, the cells will still be under .010 volts. At least I hope this is the case.

I really think this is an issue with the BMS and balancing at lower pack voltages. Going to do some experimentation.
 
I have a question about charging. I'm taking the bike on a trip and I want to be able to charge the bike as fast as possible in the middle of nowhere. Can I hook up a DC-DC converter to 5s car batteries and charge at 70A with 70A charge coil? Is there anything I should watch out for besides my bike battery's max charge rate?

Thanks
 
Longshot said:
I have a question about charging. I'm taking the bike on a trip and I want to be able to charge the bike as fast as possible in the middle of nowhere. Can I hook up a DC-DC converter to 5s car batteries and charge at 70A with 70A charge coil? Is there anything I should watch out for besides my bike battery's max charge rate?

Thanks
Click to expand...
Good morning,

I am not sure if you can charge straight away from 4-5s 12V batteries, I think it won't work well because the voltage will change continually as you discharge the batteries and you will always have a message at the screen that says "detect power supply voltage" something like this. (every time you see this message controller needs some time to adjust).
I think it can be possible if you connect a voltage stabilizer between the batteries and adaptto to have stable voltage lets say 60V.
I haven't tried this before but this is what my adaptto does everytime the voltage changes.
 
Thanks. I'll look into that. I thought that the BMS is actively uprating the voltage when using the charge coil. Is that the delay you are talking about?
 
I have a problem. My thermosensor was stuck on 32T so I decided to try different sensors in the controller setup menu and now the temp bars are flashing and I can only get 20 watts. I'm guess I'm stuck in protection for overheating mode? I've even tried setting thermosensor to no but nothing works. Do I have to reset the entire controller? Did my thermosensor short out just sitting here? I haven't ridden the bike with this motor yet.

Thanks!
 
Can some one share any Adaptto Max-E firmwares they may have because the site no longer works. I'm looking for most recent locked and unlocked.

Thanks!
 
Longshot said:
I have a problem. My thermosensor was stuck on 32T so I decided to try different sensors in the controller setup menu and now the temp bars are flashing and I can only get 20 watts. I'm guess I'm stuck in protection for overheating mode? I've even tried setting thermosensor to no but nothing works. Do I have to reset the entire controller? Did my thermosensor short out just sitting here? I haven't ridden the bike with this motor yet.

Thanks!
Click to expand...
Hello,
I had exactly the same problem 2-3 years ago with my mini-e and it happened suddenly, unplug the temp sensor to see if the issue remains, if yes it means a very small resistor in the controller is burned. I had to send it to Russia for repair.
 
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