BBS02B 750w & SW102T

[jrumpaul]

Hi Guy just done a conversion using BBS02B and a SW102T
The display readout for power only ever goes up to 250w
I did buy from AliExpress uk and it was 750w and does have this stamped on the motor
Any insight or help to why this combo is doing this.
Thanks
Jordan

 

[jrumpaul]

I’m on a 48v battery

 

[jrumpaul]

On the config tool it’s showing max amp setting of 24a

 

[Peter.Bridge]

How many levels have you set and what level are you observing the wattage ?

 

[jrumpaul]

Hi Peter it has a set 5 levels on this display.
the config tool shows 9 so don’t fully understand that side. First e-bike conversion for me
but on every assist level I see it peak at 250 but never goes above.

 

[jrumpaul]

I just found this on AliExpress: ￡33.99 | BAFANG Mini SW102T LCD Display 24V 36V 48V Ebike Intelligent LCD Screen 5PIN Female Waterproof for Bafang Mid Motor Accessices

BAFANG Mini SW102T LCD Display 24V 36V 48V Ebike Intelligent LCD Screen 5PIN Female Waterproof for Bafang Mid Motor Accessices - AliExpress 18

Smarter Shopping, Better Living! Aliexpress.com

a.aliexpress.com

 

[jrumpaul]

This is my display

 

[Peter.Bridge]

Is it increasing power as you increase the levels (does it feel a lot more powerful on level 5 than 0/1) ?
Have you programmed the percentage power for each level ?

 

[jrumpaul]

Yes it definitely increase can on level 5 can get a solid 20mph.
the percentage on the web config tool did show 100% power for the higher levels.
I’m just finding strange with the readout not going above 250. It does not even go to 251 is a dead stop at 250w

 

[Peter.Bridge]

Yes it definitely increase can on level 5 can get a solid 20mph.
the percentage on the web config tool did show 100% power for the higher levels.
I’m just finding strange with the readout not going above 250. It does not even go to 251 is a dead stop at 250w

Is it 250 exactly ? That is very strange

If there isn't a speed limit set, either against the level or overall, then I would expect a 48v nominal (54.4v for a full battery) * 24 amps to go a lot faster than 20 mph

 

[guerney]

the percentage on the web config tool did show 100% power for the higher levels.

Could you possibly upload the config file for us to look at? Or screenshots or photos of the configurator sections.

Usually "Keep current" by default is 20% on many Bafang BBSXXX motor controllers, 48V X ((24/100) X 20) = 230.4W

Explanations of settings:

Bafang Programming - Learn how to improve your Bafang mid-drive ebike - Edrivenet

Learn how to improve your Bafang mid-drive ebike. Reprogramming your Bafang mid-drive system can improve the usability and performance of your ebike a lot.

edrivenet.com

Bafang central motor programming guide - Bafangers

Learn how to configure your Bafang motor to your liking and protect it from possible breakdowns with the appropriate USB cable and software.

www.bafangers.com