The Smart Way to Repair Your M365 Battery
Is your Xiaomi M365 scooter refusing to charge? Are you experiencing sudden power drops, or is your dashboard flashing a dreaded Error 21 or Error 22? In 80% of these cases, the battery cells are perfectly fine—it’s the Battery Management System (BMS) motherboard that has failed.
Instead of replacing the entire expensive battery pack, our Replacement BMS Protection Board allows you to perform a professional-level repair, saving you money and rescuing your perfectly good lithium cells.
Key Features & Technical Advantages
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Plug & Play Communication: Features the exact data communication protocol required by the 1st Gen M365 controller, ensuring seamless integration with your scooter’s dashboard and app without throwing software errors.
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Pre-Soldered Balance Wires: Unlike bare boards that require meticulous pin-soldering, our BMS comes with the multi-pin balance cables already securely soldered to the board. You only need to spot-weld or solder the terminals to your cell groups, significantly reducing the risk of short circuits during installation.
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Intelligent Battery Protection: * Overcharge Protection: Prevents individual cell voltages from exceeding safe limits.
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Over-Discharge Protection: Cuts off power to prevent battery cell degradation.
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Thermal Monitoring: Integrated temperature sensor interface to prevent overheating during heavy loads or fast charging.
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Compatibility
This specific BMS motherboard is precisely engineered for:
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Xiaomi Mi Electric Scooter M365 (1st Generation) standard 36V battery packs (30 cells in a 10S3P configuration).
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Not compatible with M365 Pro, Pro 2, or Ninebot MAX models due to different battery pack dimensions and voltage requirements.
⚠️ Important Safety & Installation Warning (Disclaimer)
Working with lithium-ion battery packs carries inherent risks of fire or injury if handled improperly. This product is intended for professional e-scooter repair technicians or highly experienced DIYers. Proper installation requires a spot welder or high-quality soldering iron, along with a multimeter. FixPartHub is not responsible for any damage to the scooter, battery cells, or personal injury resulting from incorrect wiring, reverse polarity, or improper installation of this BMS board. Always double-check your cell group voltages before final connection.
Get your scooter back on the road safely and affordably. Add this essential repair part to your cart today!
If you need other BMS boards, please contact us！
Adam Brooks –
My M365 suddenly stopped charging and flashed a red light on the battery. I was about to buy a whole new pack until I found this M365 BMS replacement. The pre-soldered wires saved me so much hassle. I just spot-welded the connections and it works perfectly now. Definitely saved myself over $100.
Quinn Palmer –
I had a dead battery pack that was flashing a red LED. This lithium battery management system was the perfect fix. The pre-soldered BMS board eliminates the hardest part of the soldering job. My scooter is back to being my daily commuter. Five stars.
Preston Owens –
This replacement BMS board is a perfect match for the 1st gen M365. The installation was a bit tricky due to the tight space in the battery case, but the board itself works great. The M365 BMS replacement completely solved my power cut-off issues.
Brian Clarke –
Excellent e-scooter battery protection board. I run a small repair shop and these are exactly what I need for Xiaomi M365 battery repair jobs. Having the balance cables already attached to the board reduces my labor time significantly. The quality of the PCB looks identical to the original. Will be buying more soon.
Thomas Underwood –
Excellent 36V scooter BMS. It completely resolved the power drops I was experiencing on my commute. The pre-soldered wires are thick gauge and very secure. This electric scooter repair component is a must-have for anyone keeping their 1st gen M365 alive.
Quinn Roberts –
Bought three of these for my e-scooter rental fleet. They are excellent scooter battery rebuild parts. The lithium battery management system handles daily charging cycles without any overheating issues. Having the wires pre-soldered makes refurbishing old batteries incredibly efficient.
York Yates –
This is a top-tier electric scooter repair component. The replacement BMS board functions exactly like the OEM part. I really appreciate the warning on the site about needing professional tools. With the right tools, this lithium battery management system is easy to install.
Patrick Quinn –
Fixed my M365 not charging issue in about 45 minutes. The old board was completely dead with no blue light. I installed this pre-soldered BMS board and the blue light came right on. The scooter connects to the app without any firmware issues. Absolutely perfect fix.
Xander Wright –
Excellent product. I used it to fix a M365 not charging issue. The 36V scooter BMS is robust and fits perfectly in the stock battery housing. The pre-soldered wires are very helpful. My Xiaomi M365 battery repair was a total success.
Weston Vaughn –
This e-scooter battery protection board completely saved my M365. The repair was straightforward if you follow safety protocols. The M365 error 21 fix worked immediately upon plugging in the data cable. Highly recommend this for DIY repairs.
Frank Green –
If you need to fix a M365 not charging, this is the exact part you need. The original BMS on my scooter got water damaged and corroded. This M365 battery motherboard was a direct fit. The pre-soldered wires are thick and have good insulation. Extremely satisfied with this purchase.
Owen Nolan –
Essential scooter battery rebuild parts. I upgraded my cells to higher capacity ones and used this 36V scooter BMS to manage them. It handles the new cells perfectly and the thermal protection kicks in when it should. Very professional piece of hardware.
Gavin Fisher –
I couldn’t figure out why my scooter was throwing Error 21. Turns out it was a bad communication chip on the BMS. This M365 error 21 fix was a lifesaver. The new M365 battery motherboard communicates perfectly with the dashboard. No more annoying beeps!
Parker Page –
I used this electric scooter repair component for a complete battery overhaul. The M365 battery motherboard functions perfectly with the original controller. The e-scooter battery protection board is a must buy for DIY repairs.
Finn Fowler –
The best way to do a Xiaomi M365 battery repair. The pre-soldered wires are a blessing for anyone who hates micro-soldering. This 36V scooter BMS handles my daily rides perfectly. The scooter connects to the app with zero issues.
Tyler Smith –
This 36V scooter BMS works exactly as advertised. I had a water damaged pack that wouldn’t hold a charge. This replacement BMS board allowed me to salvage the good cells. It’s a great way to fix a M365 not charging without spending a fortune.
Ryan Quinn –
Great electric scooter repair component. The M365 error 21 fix was immediate after installing this board. The build quality of this M365 battery motherboard seems very durable. It¡¯s been running strong for three months now with daily charging.
Ethan Ellis –
This electric scooter repair component is exactly what I needed. The M365 battery motherboard was well protected in shipping. Installed it to fix an Error 22 and it works flawlessly. The e-scooter battery protection board is highly recommended.
Zane Zeller –
The perfect 36V scooter BMS for the 1st gen model. The pre-soldered BMS board makes the repair much safer. This e-scooter battery protection board fixed my charging issues permanently. Very satisfied customer.
Nathan Myers –
I used this board to fix a M365 not charging problem for a friend. The e-scooter battery protection board was well packaged and arrived safely. The pre-soldered balance wires made the job very fast. My friend is thrilled to have his scooter working again.
Oliver Owens –
The best M365 error 21 fix available. My scooter was dead and this replacement BMS board brought it back to life. The 36V scooter BMS is high quality. I highly recommend this for anyone fixing a M365 not charging.
Felix Edwards –
I run an e-scooter repair business and buy these regularly. They are the best scooter battery rebuild parts for the 1st gen M365. The lithium battery management system is very stable. My customers are always happy with the repair. Great reliable supplier.
Nolan Norris –
This lithium battery management system is perfect for the 1st gen M365. The M365 BMS replacement fixed all my power issues. The pre-soldered BMS board is clearly marked and easy to work with. Great scooter battery rebuild parts.
Xane Xavier –
I used this lithium battery management system to save a dead battery. The M365 BMS replacement works exactly like the original. The electric scooter repair component is well worth the price. Great product.
Eli Dixon –
The M365 BMS replacement worked exactly as expected. I was getting the constant red flashing light. Replacing it with this pre-soldered BMS board fixed everything. You definitely need to know basic electronics, but the part itself is flawless. Very satisfied.
Marcus Lane –
This is a fantastic M365 battery motherboard. I was worried it might trigger a firmware lock, but it acts just like the original. If you are doing a Xiaomi M365 battery repair, this is the board to get. Saves you a ton of money over buying a new pack.
Derek Drake –
Great scooter battery rebuild parts. I used this board to fix a battery that had a flashing red light. The M365 BMS replacement was a perfect fit. The pre-soldered wires are thick and safe. My daily commute is back on track.
Dustin Cook –
This 36V scooter BMS is exactly what I was looking for. My old board was draining the battery while the scooter was off. Installed this e-scooter battery protection board and the parasitic drain is gone. The battery holds its charge perfectly for weeks. Awesome fix.
Colin Cooper –
If your scooter is dead, check the BMS first! This replacement BMS board is a massive money saver. Used it to fix a M365 not charging and it worked immediately. The lithium battery management system balances the cells properly. Very satisfied.
Wade Wallace –
This is a great M365 battery motherboard. The pre-soldered wires make installation much easier. The scooter battery rebuild parts are high quality. My Xiaomi M365 battery repair went perfectly thanks to this board.
Max Miller –
I bought this M365 battery motherboard to revive an old scooter. The e-scooter battery protection board works seamlessly. The pre-soldered wires are a huge plus. Doing a Xiaomi M365 battery repair is easy with this part.
Luke Keller –
Exactly what I needed for a M365 error 21 fix. The old board was completely unresponsive. Swapping to this pre-soldered BMS board was straightforward since I already had a soldering iron. It is charging properly now and the app connects without issues.
Ethan Foster –
Great product for scooter battery rebuild parts. I decided to rebuild my 10S3P pack with new cells and used this lithium battery management system. The communication protocol works seamlessly with the M365 controller. No software errors, and it charges to 100% perfectly. Fast shipping too.
Leo Lawson –
Excellent quality replacement BMS board. It was exactly what I needed to fix my M365 not charging. The electric scooter repair component feels very sturdy. The 36V scooter BMS balances everything perfectly. Five star product.
Jace Jenkins –
Awesome scooter battery rebuild parts! I used this lithium battery management system to fix a water damaged pack. The pre-soldered wires made it so easy. My Xiaomi M365 battery repair was a complete success thanks to this board.
Ben Bowers –
This 36V scooter BMS fixed my annoying Error 21 code. The scooter wouldn’t move at all before. The M365 error 21 fix is legit with this board. The quality of the soldering on the pre-soldered BMS board is very professional.
Troy Tucker –
I highly recommend this M365 battery motherboard. The electric scooter repair component is top quality. The pre-soldered wires saved me a lot of time. My Xiaomi M365 battery repair was very successful.
Vance Vaughn –
Excellent M365 error 21 fix. The replacement BMS board completely resolved my scooter’s issues. The e-scooter battery protection board is very robust. Highly recommend for anyone fixing a M365 not charging.
Chase Baker –
I bought this for a DIY Xiaomi M365 battery repair. The board looks identical to the OEM version. The pre-soldered balance cables are perfectly stripped and tinned at the ends. It made the soldering process onto the nickel strips very smooth. The scooter runs great now.
Kyle Johnson –
I bought this M365 BMS replacement after my battery stopped taking a charge. The pre-soldered wires are securely attached and clearly laid out. It made the rebuild process much less intimidating. It’s a solid lithium battery management system that works flawlessly.
Daniel Evans –
This replacement BMS board brought my dead scooter back to life! My scooter wasn’t holding a charge at all. I followed a YouTube tutorial and used this pre-soldered BMS board to fix it. It is definitely not a project for beginners, but the part itself is flawless. My daily commute is saved.
Blake Allen –
Great product for fixing a M365 not charging. The blue light on my battery was flashing in a weird pattern. This replacement BMS board cured the problem instantly. It’s much cheaper than buying a whole new battery from the manufacturer. I highly recommend it.
Aaron Archer –
Bought this to do a complete Xiaomi M365 battery repair. The original board was fried from a bad charger. This e-scooter battery protection board was easy to install thanks to the pre-soldered cables. The scooter charges perfectly now. Awesome product.
Isaac Ivey –
This e-scooter battery protection board is fantastic. It fixed my completely unresponsive M365. The 36V scooter BMS fits perfectly into the battery pack. The M365 battery motherboard is definitely OEM quality. Great way to save money.
Seth Sanders –
The perfect replacement BMS board for my scooter. It fixed my M365 not charging issue instantly. The scooter battery rebuild parts are exactly as described. The e-scooter battery protection board works flawlessly.
Kaleb Knight –
This M365 BMS replacement is a lifesaver. I was getting the red flashing light of death. The pre-soldered BMS board allowed me to fix it in under an hour. The M365 error 21 fix is permanent. Highly recommend this store for parts.
Julian Ingram –
This e-scooter battery protection board is high quality. I replaced my burnt out board in about an hour. The 36V scooter BMS balances the cells perfectly during charging. My range has actually improved slightly since fixing it. Great value for the money.
Uri Underwood –
This lithium battery management system is exactly what I needed. The M365 BMS replacement fits perfectly. The 36V scooter BMS handles the power delivery safely. Great pre-soldered BMS board for DIYers.
Carter Davis –
I kept getting the dreaded Error 21 on my dashboard. A quick Google search led me to this store. The M365 error 21 fix was completely resolved by swapping out this BMS board. Make sure you have a decent soldering iron before attempting this. It took me about an hour, but it was totally worth it.
Ian Hayes –
Highly recommend this electric scooter repair component. I did my first Xiaomi M365 battery repair using this board. The description warning about needing a spot welder was very accurate. Taking my time, I got it installed and my scooter is back to 100% health.
Reed Ross –
Great pre-soldered BMS board. I used it to fix a flashing red light issue. The 36V scooter BMS is very well constructed. This is a very reliable M365 error 21 fix. Very happy with my purchase.
Aaron Zane –
My 1st gen M365 wouldn’t turn on despite having a full charge. The old BMS had a burnt mosfet. I swapped it for this M365 battery motherboard and it fired right up. The pre-soldered wires are a huge time saver. Really impressed with the quality.
Holden Harris –
Very happy with this purchase. I used it to fix my M365 not charging problem. The replacement BMS board is well made and the pre-soldered cables are strong. It’s definitely a crucial electric scooter repair component for any shop.
Gavin Gibson –
I replaced my dead board with this M365 BMS replacement. The M365 error 21 fix was immediate. The pre-soldered BMS board makes the whole process so much faster. It’s a high-quality lithium battery management system that just works.
Quinn Quincy –
This M365 BMS replacement saved me so much money. The pre-soldered wires make the Xiaomi M365 battery repair very straightforward. The lithium battery management system balances the cells perfectly. Excellent product.
Harrison Gomez –
Perfect solution to fix my M365 not charging. I accidentally left my scooter in the rain and the BMS shorted. This replacement BMS board was a perfect fit. The pre-soldered wires saved me from having to micro-solder the tiny data pins. Excellent product.
Xavier Young –
This is a crucial electric scooter repair component. I’ve rebuilt several packs using this exact lithium battery management system. The thermal sensor works correctly and the overcharge protection is reliable. It’s a professional-grade board for serious M365 rebuilds.
Wyatt White –
A perfect M365 error 21 fix. I thought my cells were dead, but the multimeter showed they were fine. It was just the BMS. This pre-soldered BMS board was super easy to wire up. The battery now charges fully and the app shows all cell voltages correctly.
Victor Vance –
I used this M365 BMS replacement to save a water-damaged battery pack. The original board was corroded beyond repair. This new e-scooter battery protection board synced up immediately with the controller. The scooter is back on the road and running perfectly. Fast delivery too.
Sam Turner –
I was nervous about lithium battery repairs, but the description on this site was very helpful. This replacement BMS board is high quality. I successfully completed my Xiaomi M365 battery repair and saved around $150. Just take your time and insulate everything properly!
Zack Zimmer –
The M365 BMS replacement board works beautifully. The pre-soldered wires made the rebuild much cleaner. It completely solved my random shutdown issues. This is the best M365 battery motherboard you can buy for a 1st gen rebuild.
Riley Scott –
The M365 battery motherboard was exactly as described. It fits perfectly into the original plastic battery casing. The M365 error 21 fix is real with this part. My scooter accelerates smoothly and charges safely. Good to know there are reliable parts available here.
Vincent Upton –
I was getting an Error 22 and my scooter would just shut off over bumps. Turns out the old BMS had a cracked solder joint. This pre-soldered BMS board was the perfect replacement. The scooter is rock solid now. Great M365 battery motherboard.
Oliver Perez –
I highly recommend this 36V scooter BMS for anyone facing Error 22 or 21. It completely bypasses the need for a new battery. The build quality of this e-scooter battery protection board is fantastic. Just be very careful with the positive and negative terminals during installation. Five stars!
Uri Taylor –
Absolutely perfect M365 BMS replacement. The pre-soldered balance leads are the exact correct length. The lithium battery management system communicates perfectly with my custom firmware. Excellent quality scooter battery rebuild parts.
Noah Ortiz –
The best M365 BMS replacement on the market. I love that it already has the wires attached. Soldering tiny pins on a PCB is a nightmare, so this saved me a lot of frustration. My scooter is finally charging to full capacity again. Excellent value for the price.
Mason Nelson –
Essential part if you are doing a Xiaomi M365 battery repair. I accidentally shorted my original BMS while trying to fix a broken tab. This replacement board arrived quickly and worked flawlessly. The pre-soldered wires match the original length perfectly. Very happy with FixPartHub.
Liam Moore –
My battery had a blown fuse and a fried chip on the original board. This M365 battery motherboard was the perfect replacement. You definitely need to know what you are doing with a multimeter to ensure the cell voltages are balanced. But if you have the skills, this part works brilliantly.
Sean Riley –
I purchased this for a Xiaomi M365 battery repair. The pre-soldered wires are a game changer. It takes the stress out of messing with the delicate PCB traces. This e-scooter battery protection board fixed my charging issue permanently. Very happy customer.
Kevin Lewis –
Solid lithium battery management system for the first-gen M365. It communicates perfectly with the Mi Home app. I was able to see individual cell voltages right after installation. The pre-soldered BMS board design is a lifesaver. Great product and clear item description.
Jack King –
I bought this to fix my son’s M365. The battery was flashing red and wouldn’t accept power. This e-scooter battery protection board was exactly what we needed. We did the repair together over the weekend. It is a fantastic alternative to buying an expensive OEM battery pack.
Isaac Jones –
This electric scooter repair component is top-notch. I’ve bought cheap BMS boards from AliExpress before and they always fail. This M365 BMS replacement feels much higher quality and the solder joints on the pre-attached wires are solid. It completely fixed my charging issues. Highly recommended for DIYers.
Henry Irwin –
The ultimate M365 error 21 fix. My scooter was basically a paperweight for three months. I ordered this replacement BMS board and a cheap spot welder. The installation process requires patience, but the board functions perfectly. The battery holds a charge just like it did on day one.
George Harris –
I was very skeptical about doing this Xiaomi M365 battery repair myself. However, the pre-soldered balance wires gave me the confidence to try. Taking apart the battery pack was the hardest part. Once I soldered this new 36V scooter BMS, the scooter powered right up. It’s a great feeling to fix it yourself!