250w bafang kit locked down?

[peter.c]

The firmware is locked 12 amps you just have to live with it
Mine is now on my gravel bike and have just got on with pas only and no throttle
ps not sure if the open source will work as it is a bbs01

 

[marand]

What is the current limit of the controller? Maybe anything over 12amp might be too much for your particular configuration?

That’s possibly why it’s not changeable.

The firmware is locked 12 amps you just have to live with it
Mine is now on my gravel bike and have just got on with pas only and no throttle

thank you so much for your reply. I didn’t attach the throttle I’ll just get on with it as is. Maybe modify the pas levels to suit me.

 

[peter.c]

You can adjust the pas levels to your personal taste ,but the biggest and best is to adjust the keep current mine is set to 100%
Above all it needs the right gear to after a few tries settled for 42t front 11 rear not enough torque for a 52t front with 29er tyres

 

[guerney]

ps not sure if the open source will work as it is a bbs01

It won't, luckily I've haven't read reports of 36V BBS01B controllers being locked. Before removing the throttle from my bike, I did consider mucking about with Penoff's config tool, written in Delphi, but attempting limiting the throttle to 6km/h wasn't worth buying the latest version of Delphi, and possibly a new BBS01B controller if it got bricked in the process. That being said, I've remembered I have spare controller, which I blackmailed from my BBS01b seller with threats of thousands of bad Amazon reviews because he'd lied to me during pre-sale enquiries about having "Multiple diagnostic facilities throughout Europe", and I'd had to pay to post my dead controller to China for a "free" replacement - it wasn't free! I had to post it for £20! While it was being "Tested" for weeks in China using some unknown and imaginary firmware "Diagnostic tool" and awaiting him sending a new one for "Free" under warranty , I bought another controller from Greenbikekit after you posted a link and recommendation - thanks again for that. It's still working great, and at the recently increased current limit of 18A. I'd increase the limit to 20A, but I need 2A for the lights soldered to the bike battery, and it's BMS is limited to 22A continuous. On the bright side maybe I've dodged a bullet, perhaps 20 X 36 = 720W would cause my 20" wheeled Dahon Helios frame to permanently fold and snap? No sign of that at 648W - not yet anyway, touch aluminium. Fortunately I don't need 720W, even with 52T... 540W and 52T was ok dragging a 90kg+ bicycle trailer up steep hills. If I were still young and foolish, I'd get a 56T or 58T chainwheel, as I'm sure there'd be enough torque on 20" wheels at 20A. Particularly now I've lost over 3.5 stones.

 

[guerney]

The firmware is locked 12 amps you just have to live with it
Mine is now on my gravel bike and have just got on with pas only and no throttle
ps not sure if the open source will work as it is a bbs01

Prompted by the sauerkraut hater, I questioned Bing's ChatGPT about this - it initially said yes the open source firmware was compatible... then that notional instance of a faked artificially "Intelligent" entity said:

 

[CAPTAINB]

has no one got an actual solution to this surely the throttle can be made to work via the programming cable. i have the same eu ordered motor and the throttle doesnt work

 

[CAPTAINB]

or do i need to get another controller from a non eu store?

 

[peter.c]

The motor programe as it is locked to 12 amps not found a firmware update
My spare bbs02 750watt contoller will not fit this bbs01

 

[CAPTAINB]

The motor programe as it is locked to 12 amps not found a firmware update
My spare bbs02 750watt contoller will not fit this bbs01

hi thanks for response im not really bothered about the 12amps unless that is what is preventing the throttle from working.

 

[guerney]

has no one got an actual solution to this surely the throttle can be made to work via the programming cable. i have the same eu ordered motor and the throttle doesnt work

Could you say who you bought your kit from, which motor kit, and which firmware version? Is it possible that your throttle issue is due to hardware, not firmware? Perhaps start a new thread asking the experts how to test your throttle?

 

[CAPTAINB]

Could you say who you bought your kit from, which motor kit, and which firmware version? Is it possible that your throttle issue is due to hardware, not firmware? Perhaps start a new thread asking the experts how to test your throttle?

its literally the exact same as the OP. i bought it from here. its the 48v 250w version.

BAFANG BBSHD BBS03 BBS02B BBS02 BBS01B Ebike Mid Drive Motor Kit 1000W 750W 500W 350W 250W 52V 48V 36V 8Fun Electric Bike Engine - AliExpress 18

Smarter Shopping, Better Living! Aliexpress.com

www.aliexpress.com

 

[guerney]

The motor programe as it is locked to 12 amps not found a firmware update
My spare bbs02 750watt contoller will not fit this bbs01

That's what I've read elsewhere, they don't physically fit - so much for the sauerkraut hater's assertion that the BBS01 and BBS02 were "different motors with the same hat" That dude couldn't be arsed to explain his miracle method, kept on referring us to confused ChattomatticGPT; blew his top and buggered off when we asked questions, despite my generous offer to send him sauerkraut. And you know how much I love sauerkraut.

Spotted this 750W BBS02B controller to BBS01 motor mod:

https://www.reddit.com/r/bafang/comments/18jroq0/bafang_bbs01_controller_mod/

 

[saneagle]

so much for the sauerkraut hater's assertion that the BBS01 and BBS02 were "different motors with the same hat" That dude couldn't be arsed to explain his miracle method, kept on referring us to confused ChattomatticGPT; blew his top and buggered off when we asked questions, despite my generous offer to send him sauerkraut. And you know how much I love sauerkraut.

I remember something about that, but I can't find any reference to it. Have you got a link?
- to the spat, not the fact that BBS01 and BBS02 qre different.

 

[CAPTAINB]

I remember something about that, but I can't find any reference to it. Have you got a link?
- to the spat, not the fact that BBS01 and BBS02 qre different.

hes linked it in the post. but back to the throttle issue lol

 

[guerney]

I remember something about that, but I can't find any reference to it. Have you got a link?
- to the spat, not the fact that BBS01 and BBS02 qre different.

Sauerkraut hater spewed useless crud over at least two threads, but they're difficult to follow because the moderator deleted his nasty little posts, plus quotes thereof. Hereabouts:

https://www.pedelecs.co.uk/forum/threads/bafang-reliability-my-experience-overwhlmingly-positive.47333/#post-715623

https://www.pedelecs.co.uk/forum/threads/how-much-battery-sag-is-too-much-for-a-3-year-old-battery.47298/page-4#post-717072

 

[saneagle]

Sauerkraut hater spewed useless crud over at least two threads, but they're difficult to follow because the moderator deleted his nasty little posts, plus quotes thereof. Hereabouts:

https://www.pedelecs.co.uk/forum/threads/bafang-reliability-my-experience-overwhlmingly-positive.47333/#post-715623

https://www.pedelecs.co.uk/forum/threads/how-much-battery-sag-is-too-much-for-a-3-year-old-battery.47298/page-4#post-717072

Thanks, I didn't know you meant the Voltsandamps guy. I was getting confused with a guy called Kraeuterbutter, who's very good with ebike stuff.

 

[CAPTAINB]

this is the number on the controller (crr209750 9nu20) which leads me to believe its a 750w controller on a 250w motor configured to run at 48v

serial on the motor itself is MMG340260 16 021F3Y4130390

 

[guerney]

this is the number on the controller (crr209750 9nu20) which leads me to believe its a 750w controller on a 250w motor configured to run at 48v

serial on the motor itself is MMG340260 16 021F3Y4130390

Are you considering flashing alternative Bafang firmware for 750W controllers? Or OSF?

If you can find suitable Bafang firmware, there doesn't appear to be any way to back up original Bafang firmware, should things go tits up... but not so tits up you can't flash your original.