Converted SPIN, when I accelerate it goes for few seconds and stops (like a fuse)

Mp897
Posts: 4
Joined: Mon Nov 30, 2020 12:19 pm

Converted SPIN, when I accelerate it goes for few seconds and stops (like a fuse)

Postby Mp897 Tue Dec 08, 2020 11:49 pm

Hey there, any idea of the issue detailed in the subject?.

I converted a SPIN and everything looks good. I did not flash the BMS as it is apparently not necessary (could it be the cause?)

Only issue I have is that when I accelerate it goes well, good acceleration, good speed, but then suddenly stops after few seconds. I can hear a little "pop" from the battery/BMS (around that area). It does not stop when I accelerate without being on it. It only stops when I am on it.
I tried Eco, D and S and the same problem appears.
The problem is still present after tweaking with a Flashing Custom Firmware and XiaoFlasher..

Any idea or anyone already faced or read this issue on the forum - i searched but could not find similar issue?

Thanks a lot !!!
CDogg
Posts: 52
Joined: Tue Sep 03, 2019 7:08 am

Re: Converted SPIN, when I accelerate it goes for few seconds and stops (like a fuse)

Postby CDogg Tue Jan 19, 2021 1:26 am

So this problem repeats itself every time you power off and back on? If you're hearing a "pop" noise when the motor has a load, it's possible the pop you're hearing is one of the CIDs inside the battery is being tripped due to some over/under voltage issue, or you need to check the wiring from your battery to the ESC.
Typically, I run through troubleshooting steps until I find the point of failure. Check all connections and wiring, if you flashed ESC using ST-Link, make sure you didn't leave excess solder or debris that could short. If hardware looks good, try updating your serial #, and bms using xiaoflasher.
meister_sd
Posts: 31
Joined: Mon Feb 24, 2020 4:29 am

Re: Converted SPIN, when I accelerate it goes for few seconds and stops (like a fuse)

Postby meister_sd Tue Feb 02, 2021 4:57 am

Did you flash the battery BMS? Maybe try flashing again
CDogg
Posts: 52
Joined: Tue Sep 03, 2019 7:08 am

Re: Converted SPIN, when I accelerate it goes for few seconds and stops (like a fuse)

Postby CDogg Fri Mar 19, 2021 5:18 am

Hey there, any idea of the issue detailed in the subject?.

I converted a SPIN and everything looks good. I did not flash the BMS as it is apparently not necessary (could it be the cause?)

Only issue I have is that when I accelerate it goes well, good acceleration, good speed, but then suddenly stops after few seconds. I can hear a little "pop" from the battery/BMS (around that area). It does not stop when I accelerate without being on it. It only stops when I am on it.
I tried Eco, D and S and the same problem appears.
The problem is still present after tweaking with a Flashing Custom Firmware and XiaoFlasher..

Any idea or anyone already faced or read this issue on the forum - i searched but could not find similar issue?

Thanks a lot !!!
I know now exactly what you were talking about. Seems like this newest Max firmware 8.1.8 has an extra security measure built into the battery that affects the ESC and dash. The only way to defeat it was the old ST-Link method to bms and rolling it back. But if you have a Max with this battery firmware, it'll shut down the scooter once it detects a load on the motor. When I bench tested inside my shop, I had no issue running at 18mph. Put it back together and went for a test ride, and 10 secs later, beep and shutdown.
Has anyone else encountered this and maybe found a workaround or another solution??

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