小米m365电动滑板车电池无法充电的解决方法（Solution for Xiaomi M365 Electric Scooter Battery Not Charging）

[@r26ff47]

I left my m365 unuse over a year n now not charging. I open the case, and there is no red or blue led. But upon plugin charger, it flashed red 4 times. Check BMS voltage output is 18.40v, but the battery before BMS is 36v. What can be wrong? Is the BMS board faulty after unuse for too long ?

[@user-lk6ej1ci4f]

4

[@paulnaquin]

What's meaning color blue blinking

[@krchannelaustralia]

Thank you for watching. Are you referring to what I said at the beginning of the video, about the blue light blinking indicating the need for charging? That's because I only repaired the battery charging function and didn't fully charge it, so after repairing the battery, the blue light blinks to indicate the need for charging.

[@AbdelBoukerma-yu3gx]

Bonjour j'ai une trottinette électrique Xiaomi qui s'affiche erreur 21 et elle roule que à 7 km pourriez vous me dire qu'elle est le problème merci pour votre réponse encore

[@krchannelaustralia]

Hi, I'm not very familiar with error codes for other models of Xiaomi electric scooters, but for the M365, error code 21 refers to Battery communication error.

[@AbdelBoukerma-yu3gx]

Re bonjour on m'a dit que s'était une erreur entre la batterie et d'alimentation merci

[@krchannelaustralia]

Hi, if your model is NINEBOT and you haven't recently upgraded the firmware, it's likely a battery issue. However, if you've updated the firmware recently, it could be a controller problem. That's roughly the reason.