Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Hey dado, can you confirm this works, I'm getting really annoyed at this limitation on my M600.... I messaged you at K1 but I think something got lost in translation as you mentioned all motors lower the power at 30% battery. What firmware version dosen't have this limitation? Apart from this I'm very happy with the motor. I have a 13S 48v battery and the power levels start to drop at 46vIf you interested in M600 firmware without power limitation (putting full power even at 10%) check K1 Flash.
Also one version with higher 20A power.
Have to do the twice on different Besst. Set speed to below 27 and adjust parameters on Pro. Exit and proceed to old beest to raised speed. Its PITA but thats the only possible at the moment. Unless you have a superuser account login.I think your statement is not exactly true because i was able to set speed how much i wanted even on version 1.2.42 when my account was working. Now when using only bypass to log in i cannot set it higher than 25, not even 27 like you mentioned, i tested it now on version 1.2.42. I tried to use older version like 1.2.18 to be precise and it works, but it lacks few useful features. Can you recommend me version which you are using?
Hy i just test you re firmware 46.3fw . And in L1 i got 320 watt . Why do you get 100 Watt and me 320 watt ?Besst tool received with a dealer login so I have tried the modified 46.3 firmware. It is certainy changed from the default 46.3. L1 power is now good with maximum 100w output, ideal for low power use on flat trails to conserve battery. L5 was full power but will need to test on my local hill climb to check how it responds to cadence and torque input. Will be interesting to compare to 14.6 which is my preferred FW so far. I have downloaded 14.6 from Github file library but for some reason it will not load using the update function on Besst. I select it ok but it seems to fail a compatibility test and wont upload to the Besst box. Does anyone have an original Bafang version of 14.6?
Hi. The modified firmware drops L1 down to 15% of max and when I look at watts output on my display it shows 100w. The original 46.3 was more like the 350w you mention, hence my request to have this reduced. I also note that others who have tried this version have confirmed the lower power output at L1 & 2. I have attached another copy of the modified firmware. Hope it works for you.Hy i just test you re firmware 46.3fw . And in L1 i got 320 watt . Why do you get 100 Watt and me 320 watt ?
Witch one will you recommand me to get 100 watt please ?
Thx
Hi. 14.6 is a great FW which I have running on my first E10 (I have 4). Sadly the bootloader on motors that run 46.3fw are not compatible with 14.6. I wish they were. I have thought about trying to play around with the bootloader file and edit it but this might risk bricking the controller.Try this luna fw, its detuned. First sent us current best screenshot from your current fw, so we can check your controller compability.
Plus voltage measurement is off when you load boot3 firmware into boot2 controller.Hi. 14.6 is a great FW which I have running on my first E10 (I have 4). Sadly the bootloader on motors that run 46.3fw are not compatible with 14.6. I wish they were. I have thought about trying to play around with the bootloader file and edit it but this might risk bricking the controller.
hy yes iconfirm i upload the same frmware .Hi. The modified firmware drops L1 down to 15% of max and when I look at watts output on my display it shows 100w. The original 46.3 was more like the 350w you mention, hence my request to have this reduced. I also note that others who have tried this version have confirmed the lower power output at L1 & 2. I have attached another copy of the modified firmware. Hope it works for you.
How are you uploading and replacing your existing controller firmware? I used BESST tool to upload revised firmware and then reboot onto the controller. I can definitely confirm their is a difference between the default 46.3 and the modified version I have posted. Both will show as 46.3 via your display.hy i think i upload the same file .
See the attachement my controler is 3.2 . View attachment 132139
hy upload with besst also .I will make picture later .How are you uploading and replacing your existing controller firmware? I used BESST tool to upload revised firmware and then reboot onto the controller. I can definitely confirm their is a difference between the default 46.3 and the modified version I have posted. Both will show as 46.3 via your display.

Hy it show 46.3 but not fw .Hi. The modified firmware drops L1 down to 15% of max and when I look at watts output on my display it shows 100w. The original 46.3 was more like the 350w you mention, hence my request to have this reduced. I also note that others who have tried this version have confirmed the lower power output at L1 & 2. I have attached another copy of the modified firmware. Hope it works for you.

I asked, but I don't think he is going to reply, he has not replied to questions asked more than 3 months ago. What I am looking for is a FW with low support on level 1 - about 100W instead of the 350W+ it has now.Hello @marcelmmx Firmwares for M500 are located here:
![]()
Bafang_M500_M600/Firmwares/Official/Motor/m500 at main · OpenSourceEBike/Bafang_M500_M600
Contribute to OpenSourceEBike/Bafang_M500_M600 development by creating an account on GitHub.github.com
I dont use them, ask @KyokushinPL for advise, as i suppose he use them. Granular ramp on M500 is normal, its weak motor. Try to check linked firmwares, if not, swap for M600 if possible. What is type of bike?
Hi folks, i have been out for a while.I asked, but I don't think he is going to reply, he has not replied to questions asked more than 3 months ago. What I am looking for is a FW with low support on level 1 - about 100W instead of the 350W+ it has now.
Hello ist this FW compatible with this controller?Try this luna fw, its detuned. First sent us current best screenshot from your current fw, so we can
Try this luna fw, its detuned. First sent us current best screenshot from your current fw, so we can check your controller compability.
check your controller compabilit

Thanks a lot. I have a M600 motor, it is confusing because you talk about the M500. Are this SW for the M600?Hello,
below 4 fw are safe to use: yoiu can download from link repository on some posts above.
Based on controller (500.FC 3.2) i think, you can use also Luna fw (detuned) or ask somebody who has M500 motor with detuned fw. This usually has lower amps on stage1. But carefull, luna FW is for M600 motor (you have controller compatible with M600), but as i see there is fw with 720w also for M500, i think its partially ok to use it. Luna FW is detuned - download link is in this trhead - 8.1.2024.
NOTE: when you will do fw change, dont use latest besst available, use 1.3.18 and also note Serial number as you may loose it. This is typical problem
NOTE2: i dont hjave any M500 in my fleet, only M51x or M600 and higher, so good to double check with somebody with M500 motor (if you have M500 motor, what is on case?)
fingers crossed.
why should I use BESST 1.3.18? From bafang it is only possible to download version 1.2.43. The version you mention seems to be a new one, where can I get it?Hello,
below 4 fw are safe to use: yoiu can download from link repository on some posts above.
Based on controller (500.FC 3.2) i think, you can use also Luna fw (detuned) or ask somebody who has M500 motor with detuned fw. This usually has lower amps on stage1. But carefull, luna FW is for M600 motor (you have controller compatible with M600), but as i see there is fw with 720w also for M500, i think its partially ok to use it. Luna FW is detuned - download link is in this trhead - 8.1.2024.
NOTE: when you will do fw change, dont use latest besst available, use 1.3.18 and also note Serial number as you may loose it. This is typical problem
NOTE2: i dont hjave any M500 in my fleet, only M51x or M600 and higher, so good to double check with somebody with M500 motor (if you have M500 motor, what is on case?)
fingers crossed.