Bafang m820

[LAnton]

yours already assembled?

No

 

[TCFlowClyde]

No

Can't you hurry please!

 

[Fresh]

I don't suppose anyone has a 3d cad model of the m820 motor?

 

[kimochi]

The M820 engine is noisier than the M510 engine. The noise of the motor is very clearly audible. The M820 motor is about 30% weaker than the M510. I didn't understand how to turn on boost 95N mode. I drove 29 km on a 360W battery at 100% power.

View attachment 110119

hi, can you share more about the motor noise? Is it high pitched like the old levo sl or more like the old shimano? how loud is it compared to like a shimano ep8 or bosch?

 

[LAnton]

Old friends

 

[clix]

Is the bike in the background new dengfu M820 frame?

 

[Tilt]

Le vélo en arrière-plan est-il le nouveau cadre dengfu M820?

Yes

 

[clix]

Picture from the other side:

 

[temon10]

Picture from the other side:

View attachment 114644

Don't like that top tube

 

[LAnton]

Picture from the other side:

View attachment 114644

The frame designer was drunk.

 

[brbr]

Hey ,
I’ve forgot to ask, is it limited to 45km/h per default ?

 

[stuff]

Hey ,
I’ve forgot to ask, is it limited to 45km/h per default ?

25km/h I've a limiter.

@LAnton , which cable are you using? Im thinking on buying a usb cable but don't know which CAN one will work

 

[stuff]

Does someone have the DP E171 button? Would be interesting in testing it for simplicity instead of having a display

 

[LAnton]

25km/h I've a limiter.

@LAnton , which cable are you using? Im thinking on buying a usb cable but don't know which CAN one will work

https://aliexpress.ru/item/1005004206955360.html?spm=a2g2w.favourites.mywishlist.323.306c4aa6v12NRw&_ga=2.55937579.1284432816.1684484955-744004518.1684484955&sku_id=12000029516334220

 

[brbr]

25km/h I've a limiter.

@LAnton , which cable are you using? Im thinking on buying a usb cable but don't know which CAN one will work

I thought it was 45km/h for everyone! I will mention it to the seller, I'm not a big fan of that "wall" feeling above 25

 

[LAnton]

What does the acceleration parameter affect?

 

[temon10]

What does the acceleration parameter affect?

View attachment 115318

acceleration time after pressing the pedal

 

[LAnton]

acceleration time after pressing the pedal

I set it to slow yesterday. I didn't notice the difference between slow and fast

 

[clix]

I found this manual for besst:
https://bafang-e.com/fileadmin/user...puter_Software_Operation_Manual__V1.0_EN_.pdf

chapter 5.1 on page 20 has it explained:

 

[temon10]

I set it to slow yesterday. I didn't notice the difference between slow and fast

On my M510 FC 2.0 I can feel the different. I like to set it little slow.

 

[temon10]

M820 temperature is excellent. Only getting warm after 40 minutes climb ride.

Bafang M820 temperature after 40 minutes climb ride. Just warm, excellent !

youtube.com

 

[temon10]

M820 Sound at Normal Cadence and High Cadence. For me it is tolerable.

- YouTube

Enjoy the videos and music that you love, upload original content and share it all with friends, family and the world on YouTube.

youtube.com

- YouTube

Enjoy the videos and music that you love, upload original content and share it all with friends, family and the world on YouTube.

youtube.com

 

[LAnton]

On my M510 FC 2.0 I can feel the different. I like to set it little slow.

Fast mode. Does the motor accelerate faster when you press the pedal? Or does the motor stop faster if we don't press the pedal?

 

[brbr]

M820 Sound at Normal Cadence and High Cadence. For me it is tolerable.

- YouTube

Enjoy the videos and music that you love, upload original content and share it all with friends, family and the world on YouTube.

youtube.com

- YouTube

Enjoy the videos and music that you love, upload original content and share it all with friends, family and the world on YouTube.

youtube.com

High cadence is a bit more noticeable, but I guess if you don't like it, go for an analog bike

 

[brbr]

Guys, I have a question regarding the light output on the cable going to the display.
Do you have a voltage in output ? is it permanent or does it need to be activated by the display ? is there an output on the motor instead of the cable going to the display ? I'd like to work on a little DIY project, I've seen this video of a guy DIYing a wireless dropper : I think it's possible to solve the battery problem by using the voltage input used for the lights. What do you think ?

 

[LAnton]

Guys, I have a question regarding the light output on the cable going to the display.
Do you have a voltage in output ? is it permanent or does it need to be activated by the display ? is there an output on the motor instead of the cable going to the display ? I'd like to work on a little DIY project, I've seen this video of a guy DIYing a wireless dropper : I think it's possible to solve the battery problem by using the voltage input used for the lights. What do you think ?

I think we need to lower the voltage. It is not necessary to take from lamps.

 

[temon10]

Fast mode. Does the motor accelerate faster when you press the pedal? Or does the motor stop faster if we don't press the pedal?

Mine accelerate faster. Motor stop faster in level E to S, but S+ to B there's little delay.

 

[temon10]

My setting for now.

 

[brbr]

I think we need to lower the voltage. It is not necessary to take from lamps.

Thanks! For the voltage, we can add some voltage limiter, it's not a big deal. Do you have another idea where we could take the voltage from ?

 

[stuff]

Thanks! For the voltage, we can add some voltage limiter, it's not a big deal. Do you have another idea where we could take the voltage from ?

Just use an Y for the XT plug that comes from the battery or the charge plug, with a 36/43v->5v limiter that will work and cables are shy 10cm from the seatpost