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U still can change speed limit via old besst software using phyton script.

any other grease beside molykote? it's hard to find here in Indonesia.

with this spec I doubt it is 19,5kg :D

any company producing this battery case, so we can make DIY battery for your frame. or maybe your company can make it.

New member and rude. Are U Dengfu people?

agree

Need it when doing long ride with full power and big battery friends.

Yesterday I did 113km with 1900m elevation gain. Main battery 540Wh 20% left and extender battery 360Wh 30% left.

https://www.emtbforums.com/threads/bafang-m820.29230/post-549440

Last Saturday ride, this is total ride with internal 540wh battery 24% left and extender 36wh battery 70% left. Mostly on level S assist.

It's a brave modification. Btw did U use Bafang battery?

cheap 10s bms from aliexpress

I'm using this dual battery adapter

https://youtube.com/shorts/1TJkV97JocQ?si=TcVcaaYdw9SYOTaD

I change factory setting with besst tools, lowering each assist level.

same cells

Been using some bafang motors, from BBS02 750W, M600, M500, M410, M510 and now build 2 M820 system. I think for now and for me M820 is the best for riding eMTB. Less weight make different handling for thin person like me (55kg). This are my 2 build of M820.

I'm using this 2.3 firmware on my latest build. Seems less battery consumption than my other bike on 3.2 firmware. This is my latest build with Tantan E67 frame with 540Wh DIY internal battery. Display shows 70km with 57% battery left. But actual distance on strava about 65km with 1100m...

DId U make 3D printing for this battery holder?