Xiaomi M365 Repair - BMS Fuse - Part 1

A little messy but you show me how to replace the board on the battery .Bravo Chap good Gosh! great !!!! AAA++++ Job. And change the fuse

a trick on desoldering fuses or any multi pad SMD/Through hole. solder a bare copper wire across the fuse ends, then just heat the wire in the middle and both ends solder pads will melt and you can flick it off. Even works with 20 pad inline switches. Good job for not being afraid to try and repair something.

Bonjour, monsieur. J'ai un petit problème. J'ai un scooter électrique. Lors de l'installation du chargeur, puis du débranchement, cela ne fonctionne pas tant que je n'ai pas retiré la prise de la batterie, puis que je l'ai reconnectée, donc cela fonctionne, s'il vous plaît. Qu'est-ce que le problème?

Just awful soldering, that poor battery could be heard screaming during that repair. You need a proper soldering iron, 25w isn’t meant for that kind of work.

Either way glad you sorted it out, I wouldn’t trust the repair just due to the process.

It seems like you followed some kind of manual….
“And then it says that I should check the Z fuse…” And you were lucky the error was here. If it hasn’t been the Z fuse, what was the next step in the manual?
Maybe you can leave a link to the manual here?
Thank you 🙏

What to do if the bms has no light

What is the value of this termistor to replace it?

My xiaomi m365 electric scooter don't turn on.
I plug the charger it show green colour only, not turn into red {not charging}
What to do..? Can you please help me for repair..?

You didn't get the right voltage with the meter because you didn't have the plug from the battery inserted into bms.

I hope you wrapped that battery...Good video all in all...

Thanx for youre Video.
But for it is not clear which step of your multiple operations fixed the problem. I have same red 4times blink Indikation and the 3.4V at output connector. Overal voltage B0_B10 is 36.7 V.

Flux mate... I can't watch soldering like this, however movie is very educational :)

This is painful to watch..

Hello, could you please let us know where you ordered the Z fuse from? Also, what is the amp of the fuse? TIA.

I don't know much about
E scooters BMS boards.
But I would think they would all read lower voltage like 3 to 9v from the discharge wires.
Because needs to be turned on by connecting the other 4 wires to the scooter wire harness.
Where a switch should turns it on.

Really bad idea to touch the board with a tongs , you easily rip off SMD parts from the board

Got a mi 1s 2.02km on it lost drive wil spin slowly if I put on cruise controll an I got no error codes I know it's just guessing with out seeing but any ideas

Do you think damaging the wrap will affect the water resistance of the pack. I need to do this repair but taking the clear wrap off a lithium battery pack not being able to put it back on scares me

😱 Like this no solder because burn the components and the pcb !!!!

Hi, my battery direct output is 49 volt but bms output is 3.5 volt . How to resolve?

geez what are you doing?