Xiaomi M365 Battery Revival - Over Discharge (one year stored empty)

Ғылым және технология

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Here is a guide of how to check and safely revive a Xiaomi M365 battery that was left uncharged and unused for ~ one year.

Пікірлер: 194

  • @skmaduevil
    @skmaduevil2 жыл бұрын

    Thankyou! This helped me bring my scooter back to life. Excellent video.

  • @TechTronic9000

    @TechTronic9000

    2 жыл бұрын

    Glad it helped!

  • @drphoneragusa
    @drphoneragusa3 жыл бұрын

    Sei un grande! Fatto la prova con alimentatore originale ed é andato alla grande! Top!

  • @masatooshima803
    @masatooshima8034 жыл бұрын

    I fixed with your instruction. In my case it was 12V and precharging to 15V with power supply then the factory charger starts going red. Thank you.

  • @eciruamdivad3956
    @eciruamdivad39562 жыл бұрын

    Very nice tuto, it recovers my m365 after a sleep of 13 months without any recharge thank a lot guy !!!

  • @TechTronic9000

    @TechTronic9000

    2 жыл бұрын

    Great to hear!

  • @thekind8
    @thekind810 ай бұрын

    Thanks for this video. I had my scooter stored for a while without charging and couldn't get it to charge this week. I borrowed a variable dc power supply from my friend and tried this. Now it is charging normally! Thanks.

  • @TechTronic9000

    @TechTronic9000

    10 ай бұрын

    Great to hear!

  • @ort619
    @ort6193 жыл бұрын

    It worked. Used a commenters advice. And yours for sure.

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    Great to hear!

  • @ort619

    @ort619

    3 жыл бұрын

    @@TechTronic9000 I thought there was nothing I couldn’t fix on those scooters. Are used to work for the Bird company as a mechanic and fixed everything on those scooters there is an a nut bolt screw washer grommet tire rim brakes you name it I’ve done it all. But I never had to deal with a battery that had been drained too far. I’ve had to remove batteries and replace batteries and controllers and dashboards and everything. But I was stumped

  • @FlameMing
    @FlameMing2 жыл бұрын

    Hi I’m trying to follow the instructions. My battery pack is reading 13.2V when I first started. When I hooked up the variable power supply. It won’t push any amps at 36V. I have to ramp the power supply up to 39V for about 0.5 amps to flow, then in a couple min it drops down to 0.2 amps. I’m afraid to go any higher in voltage. After couple minutes of “charge”, I measured the Voltage of the battery pack again. It did come up 0.5V to 13.7V. Temperature is good, Can I continue do this at 39-40V CV? I don’t want to blow anything up lol. Ps: in the start of your video, your battery pack measured in at 14.5V. Then why does it take your power supply 35V to push amps? Why won’t it push at 20,25 etc?

  • @jt7750
    @jt7750 Жыл бұрын

    Thank you :) Mine needed to go up to 39V while giving 2A current but such as Frankenstein back to life hopefully.

  • @TechTronic9000

    @TechTronic9000

    Жыл бұрын

    I'm glad you fixed it. Consider subscribing ;)

  • @nomad_wfm_scheduler
    @nomad_wfm_scheduler2 ай бұрын

    I tried using the charger connected to the discharge port for 10 minutes and voila! It's working!!! Thank you so much.

  • @TechTronic9000

    @TechTronic9000

    2 ай бұрын

    You are welcome!

  • @uksewingmachineservice7030
    @uksewingmachineservice70304 жыл бұрын

    Nice one mate looking good don 🤠🇬🇧👍👍👍👍

  • @TechTronic9000

    @TechTronic9000

    4 жыл бұрын

    Thanks!

  • @MrBunker99
    @MrBunker993 жыл бұрын

    Hi, Great! Thank you it's working. If you don't have an external power supply, use the one of Xiaomi directly plugged to the battery connector. It worked for me :)

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    Thanks for sharing

  • @aurelm

    @aurelm

    3 жыл бұрын

    Sorry, could you explain a bit more how you did this, please?

  • @eciruamdivad3956

    @eciruamdivad3956

    2 жыл бұрын

    Nice but it is better to check thé current to avoid it come over 1 A

  • @juliensoyer5786

    @juliensoyer5786

    2 жыл бұрын

    But how do you do that ?

  • @xiaobai7060

    @xiaobai7060

    2 жыл бұрын

    @@juliensoyer5786 if you have a voltmeter, you can check the current as you charge it.

  • @akantou
    @akantou3 жыл бұрын

    Thank You very much my friend.Ευχαριστω πολυ-.You save me and my scooter,after one year.I fix the battery with the original charger.

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    Glad I could help! ευχαριστώ που παρακολουθήσατε το βίντεό μου

  • @audy6947

    @audy6947

    3 жыл бұрын

    Hi how did youthat? Can u pls explain the step? Plz

  • @akantou

    @akantou

    3 жыл бұрын

    @@audy6947 You can use the original charger if you can wire it to the discharge port, but you need to be careful with polarity and wires not to make a short circuit. Also don't keep it to much connected 5-10 minutes at most should do it.

  • @aurelm

    @aurelm

    3 жыл бұрын

    @@akantou can you explain how you did it, please?

  • @akantou

    @akantou

    3 жыл бұрын

    @@aurelm You cut your charger(don't worry you will merge them again),and you connect them how he show on video on 3:17 and charge for 5 10 minutes NOT MORE.. After merge again the cables from your charger and charge your battery.

  • @asankasatheera5556
    @asankasatheera5556 Жыл бұрын

    Do you have used or second hand electric scooter. I need to buy each one. Becouse i have't inofe money for buy new one.

  • @evil_beast666
    @evil_beast66617 күн бұрын

    It's alive again! It's ALIVE!

  • @TechTronic9000

    @TechTronic9000

    16 күн бұрын

    IT'S AAAALIIIVE! I'm glad it worked out, thanks for watching and I hope I have also got a sub from you ;)

  • @utkuguney
    @utkuguney Жыл бұрын

    This video saved my mi365 too. I was reading 14v from battery and charger was green. I used the original charger with 42V to charge the battery from discharge ports. After 6-7 hours, charger went into green; voltage from battery was 20v. During that time no led on bms was blinking only charger light was red. Then I tried charging from charge ports, it started charging properly and after 1 hour, battery was giving 41v on multimeter ( I know some weird number) now I am discharging the battery with throttle, front wheel in the air. Hope next time, I can charge it without any issue. Thanks for the video, really great help.

  • @TechTronic9000

    @TechTronic9000

    Жыл бұрын

    41V is full for the Xiaomi, it prolongs the lifespan as it will not charge to 42V like other scooters. No need to discharge again, it will only wear it out faster. Just use it normally and charge as often as possible, don't discharge too low and also check the battery to be around 50-60% when you are storing the scooter for a longer time interval.

  • @ilieandreidaniel6188

    @ilieandreidaniel6188

    Жыл бұрын

    Hello!You have used the original charger and charged the batteries via discharge port for 6-7 hours? Is this ok?I have same issues with my scooter, and I don't have any voltage measuring device.5-10 minutes shouldn't be enough to charge it via discharge port, and after switch to normal charge? Thanks for clarifying this aspect!

  • @TechTronic9000

    @TechTronic9000

    Жыл бұрын

    No, you just use it for a short time to boost the battery back to life, then you charge it normally.

  • @parikapustina1398
    @parikapustina13987 ай бұрын

    thank you!!! you saved my pack sir!

  • @TechTronic9000

    @TechTronic9000

    7 ай бұрын

    Glad it helped!

  • @tomeryeify
    @tomeryeifyАй бұрын

    Working!!!!!! Thank you dear!

  • @TechTronic9000

    @TechTronic9000

    Ай бұрын

    You're welcome!

  • @hersirnordic2814
    @hersirnordic28149 сағат бұрын

    Very easy method, I will try, thank you sir

  • @johnmoore6501
    @johnmoore65014 жыл бұрын

    Hi, Very good video. I've check all the usual battery issues listed on youtube before finding your Video. I have the same problem as your Xiaomi, the only difference is I left mine was on charge for about 4 months without use. I have variable DC power and have connected the same as you. I'm reading 19v at the BMS terminals, I had to increase to 40v to get a 1A charge (got worried so stopped the forced charge). I did before seeing you Video try charging via the normal charging terminals, but couldn't pass any current. Also when I force via BSM terminals both the red and blue LEDs flash, is this correct? Any advice helpful, Cheers John

  • @TechTronic9000

    @TechTronic9000

    4 жыл бұрын

    You need to charge it for a few minutes through the discharge plug and then the normal charge plug will get active again.

  • @rayanhel948
    @rayanhel948Ай бұрын

    I fixed it 🎉 mine was at 27v but I didn’t have a dc power supply so I used another battery which it was a 35v

  • @quigofamily6362
    @quigofamily6362 Жыл бұрын

    Awesome!! I just connected the actual charger direct to the battery same as you did have it 5 mins then plugged charger into the normal slot and bingo

  • @Dkillzh6

    @Dkillzh6

    Жыл бұрын

    how did you do it with the actual charger?

  • @hunderbloodz

    @hunderbloodz

    Жыл бұрын

    how did you do it with the actual charger? ²

  • @stevenharris2190
    @stevenharris21909 ай бұрын

    Hi, I have a constant blinking red light and the charger stays green. I have charged all 10 cells individualy to 4v and the output where you are measuring from only says 3.4v. Any ideas what is wrong and thanks for the video.

  • @bardenegri21
    @bardenegri214 жыл бұрын

    The only bad thing that can happen is if it's an old or somehow defective battery, one of the cells could be lower dragging the whole thing down. In that case case it could be a bit dangerous, but it's veeeery rare and if you keep a low current and check the temperature of the pack it should be fine even then.

  • @TechTronic9000

    @TechTronic9000

    4 жыл бұрын

    You are right, but this scooter only had 1 use, no charges and stood like that 1+ years!

  • @yeyiarai
    @yeyiarai3 жыл бұрын

    I don't have a power supply. Which one do you recommend for my Xiaomi m365??? It has been months since I don't use it, and now it doesn't want to charge at all. The battery is around 18V :( My scooter is almost brand new. I don't want to buy a new battery. As I used my scotter for only 3 months. I hope you can help me out as I know nothing about these things.. :S

  • @raybkk

    @raybkk

    6 ай бұрын

    Use the normal charger that came with is. You will have to strip the wires though

  • @tedthurgate
    @tedthurgate2 ай бұрын

    My battery pack was reading 1 volt. I have the charger connected through the output and it is charging. I checked after awhile and it was 2.4, then checked later and 3.2. We'll see how it does. I am skeptical after veing so low.

  • @027fuckoff
    @027fuckoff2 жыл бұрын

    Hey awesome video dude! I had 3 batteries at 0.1 Volts I replaced and the rest are good but i'm still having the charging issue. I am still reading 3 Volts from the discharge plug. I don't have a charger like yours but i've got an external 32Volt secondary battery that is charging it but I have no idea how long that could take as I don't know how many amps its naturally charging. I see your recommending to use your original charger but my xaomi charger is 42V/1.7A and your charging with 31V/1A is that ok? Cheers

  • @TechTronic9000

    @TechTronic9000

    2 жыл бұрын

    A 36V battery when it's fully charged will have 42V, that is why the xiaomi charger is rated to 42V. You can use that. In my case I have used that lab power supply for more control and to showcase better what is happening.

  • @027fuckoff

    @027fuckoff

    2 жыл бұрын

    @@TechTronic9000 I see. Thanks for the reply but it seems that my scooter charger is stuck on the green light causing it not to charge this way :(

  • @TechTronic9000

    @TechTronic9000

    2 жыл бұрын

    The charger works, green light means that the battery is not taking a charge. It's possible that you might have some cells that become lose and lost their welds, i have another video on that.

  • @Mike-li9kr
    @Mike-li9kr3 жыл бұрын

    Great video. I just got my scooter back after months of no use. The pack was bouncing between 16 and 19V as if something was drawing current while off. I plugged in the standard charger and within 1 minute the scooter booted up and was at 33V. Is this normal? Is it safe? Can you talk more about the safety feature you talk about the pack "sleeping".

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    It is safe, fully charge it now and it's ready to be used.

  • @yeyiarai

    @yeyiarai

    3 жыл бұрын

    Mine is around 18V , but it doesn´t charge at all. It always has a green light, never turns to red. I don't have a power supply, and I have been using the charger that comes with the Xiaomi which is 48V. When you talk about the standard charger.. what do you mean?

  • @ciupik8571
    @ciupik85714 жыл бұрын

    salut ! o intrebare daca ma poti ajuta : am observat , dupa vreo 2 luni de hibernare a trotinetei mele xiaomi m365, ca pe aplicatie la voltajul individual, imi apare cel 1, de culoare rosie, cu o deviere de 0.021V . Este un motiv de ingrijorare sau nu ? Am incarcat-o inca de vreo 2 ori si tot asa. Nu am mai patit asa ceva . Ce as putea face ? Multumesc anticipat si multumesc de informatii !

  • @TechTronic9000

    @TechTronic9000

    4 жыл бұрын

    Nu este nici o problema, o deviatie de 0.2V pune semne de întrebare, 0.02 e foarte OK.

  • @ciupik8571

    @ciupik8571

    4 жыл бұрын

    @@TechTronic9000 multumesc inca o data !

  • @cantipop

    @cantipop

    2 жыл бұрын

    @@TechTronic9000 Nu am găsit nici o informație referitor dacă bms face un fel de balansare a celulelor. Din ce observ, încărcătorul încarcă bateria în serial, iar când prima celula ajunge la ~4.2 v se oprește încărcarea. Celulele se pot autobalansa in timpul încărcării seriale? Totuși am lăsat încărcătorul peste noapte și nu am văzut sa facă vreo balansare a celulelor. Tot am diferența de 0.031V între celula mazima și cea minima

  • @havalandir
    @havalandir3 жыл бұрын

    hello sir i bought a dc power supply but i don't know how to connect it , could you please help me ?

  • @jamievazey790
    @jamievazey79011 ай бұрын

    This is the exact issue I am having with my scooter. I even tried charging through the discharge port and the voltage increased to 2.8v. However in your responses to all the comments below you note to only charge it for around ten minutes through the discharge port. If I keep an eye on the voltage and check for heat, can I charge it through the discharge port for longer? Say 30 minutes?

  • @TechTronic9000

    @TechTronic9000

    11 ай бұрын

    Could also work for 30 minutes but only under supervision.

  • @johncarlevaro943
    @johncarlevaro94311 ай бұрын

    Hi, do you happen to know by any chance if the mi 3 battery is the same as 365? Thanks

  • @TechTronic9000

    @TechTronic9000

    10 ай бұрын

    I don't know if they have the same battery.

  • @mbol4348
    @mbol4348 Жыл бұрын

    Hello, my battery is showing red light on charger and has 40v but display Shows only one dot, low battery, what to do?

  • @Sundheden
    @Sundheden4 жыл бұрын

    Mine was at 30.5 V and wouldn't charge. Blue flash when charger disconnected, and red when connected. Charger LED remained green. With the XT30 plug (black plug from the battery to the x365 mainboard) disconnected I pushed the BMS reset button with a toothpick, and boom, it started charging! Just something to try for anyone else, that doesn't have an alternative power supply! :)

  • @daveholly9005

    @daveholly9005

    3 жыл бұрын

    Hi Sund. Im in this situation, I dont know where the BMS reset button is :(

  • @michaelwise6479

    @michaelwise6479

    3 жыл бұрын

    @@daveholly9005 it's under the plastic covering in front of the battery pack on the left side... didn't work for me

  • @daveholly9005

    @daveholly9005

    3 жыл бұрын

    Michael Wise Cheers mate.. worth a try 👍

  • @michaelwise6479

    @michaelwise6479

    3 жыл бұрын

    @@daveholly9005 I just connected the inside of the charger to the +ve terminal and the outside of the charger to the negative...charged for 10 min and it is now charging through the normal charging port.

  • @hongtm77
    @hongtm77 Жыл бұрын

    Hi, I'm having the same problem with my m365. Now it's 2.8v is it safe to charge with my original xiaomi charger on the discharge port?

  • @TechTronic9000

    @TechTronic9000

    Жыл бұрын

    Yes you can try it, but monitor it and don't do it for a long time, just for a few minutes and check again the voltage.

  • @ort619
    @ort6193 жыл бұрын

    Thanks. Gonna give it a go. It’s at 2.7

  • @hongtm77

    @hongtm77

    Жыл бұрын

    Hi, have you fixed yours? I have the same problem. At 2.8. How do you fix it?

  • @ort619

    @ort619

    Жыл бұрын

    @@hongtm77 I had to reverse charge it. I think it’s called. I’ll find a link on it and send it to you

  • @ort619

    @ort619

    Жыл бұрын

    Basically you unplug the battery and use the original charger. Use alligator clips and clip one to the inside of the charger (it’s positive) and the other u clip to the outside of the charger (negative) then on the other end of the wires put them in the correct positive to positive & negative to negative on the battery (short wires with yellow connector) and plug in the charger but only do it for 7-9 minutes or so. Then check with volt meter Then unplug everything and put it all back to normal and charge it like you normally would.

  • @hongtm77

    @hongtm77

    Жыл бұрын

    @ort619 okay thank you so much, will try it this 2 days 🙏🙏🙏

  • @ort619

    @ort619

    Жыл бұрын

    @@hongtm77 let me know how it goes, Be carefull.

  • @jamievazey790
    @jamievazey790 Жыл бұрын

    Hello my friend. Is it safe to use some other lower voltage charger (say 7 volts) to try charge it up just a bit and then put it back to the original charger? I’m asking because I don’t have the fancy DC machine you have but have the same issue with my battery. Thank you

  • @TechTronic9000

    @TechTronic9000

    11 ай бұрын

    You need at least a lithium ion battery charger made for 36V batteries (that charges to max 42V). You can try using the original Xiaomi Charger.

  • @jamievazey790

    @jamievazey790

    11 ай бұрын

    @@TechTronic9000 i am just going to try charging through the discharger instead :) after 10 minutes it was only at 2.8v. Is it safe to charge this way for up to an hour to get it to 36v?

  • @jargurek1235
    @jargurek123511 ай бұрын

    Na i just boost battery with original charger (42v 1.7a) thru battery cable (before mbs)? Or is it going to explode or sum

  • @TechTronic9000

    @TechTronic9000

    10 ай бұрын

    You can do that also, but don't do it for a very long time.

  • @char3503
    @char35033 жыл бұрын

    I have a AOVO PRO scooter with a sealed battery pack can i still back charge it ? The charger used to be green when the scooter was dead but now back charging it has gone red

  • @zzzz-mm2mv

    @zzzz-mm2mv

    4 ай бұрын

    yeh mate worked with mine

  • @rafaelcarlose7326
    @rafaelcarlose73263 жыл бұрын

    I have 3.6 volts in mine. Is it dead then? Or can I use a DC power supply like you? Thx in advance.

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    You can use the DC power source, the BMS is probably under protection and that is why it's only showing 3.6V

  • @rafaelcarlose7326

    @rafaelcarlose7326

    3 жыл бұрын

    Thanks for your reply...How much time do I try to jump start the battery with 32 volts? 1 hour is enough? Nothing for the time being...

  • @rafaelcarlose7326

    @rafaelcarlose7326

    3 жыл бұрын

    Do I have also to use two independent DC power source like you? I have only one...

  • @BostonGeorge12
    @BostonGeorge123 жыл бұрын

    My Batterie shows me 2.1 volt . can i still fix it wit power supply ? mine doesnt work

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    Only one cell group or the whole battery? It might be a shut down BMS and might turn back on.

  • @ianisflyin2589
    @ianisflyin25893 жыл бұрын

    Hey great video. I have 3 cells that are 0.1 and bd 0.3 volts. The battery won't charge the connectors looks good no cracks... What can I do... The whole pack is only 3 volts but all the others individually are 3.6 apart from the 3...what can I do... I don't have a charger like you. Tha kyou

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    If the cells are at 0.1 / 0.3V then I'm afraid that you have to replace them

  • @027fuckoff

    @027fuckoff

    2 жыл бұрын

    Hey I had the exact same issue as you. I had the first three cells reading 0.1 Volts and the rest were fine. I replaced the first 3 cells but it's still only reading 3 volts at the connector. Did you end up fixing this? I dont have a charger and the xaomi charger is 42v, 1.7a which is to big am I right?

  • @rafalswiechowski8451
    @rafalswiechowski84513 жыл бұрын

    Same problem here. Gauge shows 3.0 V. Is there any chance to fix it this way?

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    Yes, try to charge it back the same way as I did. You can also use your charger if you don't have access to a fancy lab power supply.

  • @rafalswiechowski8451

    @rafalswiechowski8451

    3 жыл бұрын

    @@TechTronic9000 I measured with different gauge and IT was 16 V. I connected original charger and after 10 min I was able to charge it via normal port. After it reached 100 percent I checked V of each cell in dashboard. From 1 to 5 there is around 4.1 with diffrrence 0.02. from 5 to 10 cell there is 3.6 V on each cell. What should I do now? Is it possible that it will normalize after few charge cycles?

  • @kacperkott7878
    @kacperkott7878 Жыл бұрын

    Hello how long is it safe to charge with discharge port? my battery is at 17volt I charged it from discharge port with original charger but after 10 minutes it’s still at 17volt

  • @TechTronic9000

    @TechTronic9000

    Жыл бұрын

    In 10 minutes it should have gone up. Check the wiring maybe something didn't make contact.

  • @Maraxion
    @Maraxion Жыл бұрын

    Hello. So i tried this and i managed to get some power into my batteries. Still it wil not charge in the normal way. Its a pro so the battery and bms is inside the aluminium case so was hoping i dident have to open. Any ideas why it does not charge on the main port but now show 35v after charging directly on battery port?

  • @TechTronic9000

    @TechTronic9000

    Жыл бұрын

    My knowledge on the PRO model is limited. If it has 35V it should start and charge normally.

  • @KeigoMoriyama
    @KeigoMoriyama3 жыл бұрын

    Does it have to be charged only on the discharge port? What happen if doing on the charging port?

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    If the cells get to low on voltage as a protection the BMS with disable normal charging to protect from the possibility of a fire. The discharge port lets power go to the cells and increases the voltage enabling the BMS to work again.

  • @KeigoMoriyama

    @KeigoMoriyama

    3 жыл бұрын

    @@TechTronic9000 thank you very much! I’ve ordered the parts and tomorrow will give it a try. Cross fingers

  • @FlameMing

    @FlameMing

    2 жыл бұрын

    @@KeigoMoriyama How did it go?

  • @KeigoMoriyama

    @KeigoMoriyama

    2 жыл бұрын

    @@FlameMing I had to replace everything because I had damaged cells

  • @maniac_fpv
    @maniac_fpv2 жыл бұрын

    Hello, I have exactly same problem but my pack has 8.4V. I dont have power supply like in the video :(

  • @TerrorDro
    @TerrorDro3 жыл бұрын

    How do you do this without that machine can I use 12v back up battery’s to connect to the battery to give it charge? I was thinking 2 12v in series connect it and see what it does

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    You can actually try to use the original charger to do this.

  • @TerrorDro

    @TerrorDro

    3 жыл бұрын

    TechTronic9000 how would I do that without breaking the charger to strip back the pos and neg cables

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    Disconnect the normal charge cable as it has a plug inside, use that connector and carefully hot wire it to the discharge plug. You need to be extra careful not to short the wires as they can blow the charger or the battery BMS.

  • @TerrorDro

    @TerrorDro

    3 жыл бұрын

    TechTronic9000 hi mate thanks for replying I done EXACTLY this before reading, I cut the red and black cables that come from the external charger and I was able to use the little white connecter plug to get the 42v, I plugged it in the other red and black that connects to that circuit board and the charger turned red! Then it went green and I’m still on the same place! My battery is giving off 20v or so and it doesn’t go higher than that 😞

  • @myunghong9004

    @myunghong9004

    2 жыл бұрын

    @@TechTronic9000 what is the discharge cable?

  • @dhineshravitchandirane8959
    @dhineshravitchandirane89592 жыл бұрын

    Hello , thank you for the video , i did all the steps , now my scooter is turning on , and the battery is fully charged , but i overcharged it , now the voltage is so high more than 40V , so my accelerator is not working .. and i have some are issue like not able to connect to the App etc .. i need to discharge the over charged battery, is there a fix ? Thank you

  • @TechTronic9000

    @TechTronic9000

    2 жыл бұрын

    When the battery is 100% charged it reaches 41-42V. Check your other plugs that go into the controller, maybe a plug is loose.

  • @farhanfouadacca
    @farhanfouadacca2 жыл бұрын

    Where are you located? I need to have my battery tested.

  • @TechTronic9000

    @TechTronic9000

    2 жыл бұрын

    Sorry I don't provide any services.

  • @lazee7369
    @lazee73693 жыл бұрын

    Hello friend I bought a xiaomi scooter (clone, didn't know :( ) and the battery is reading at 7 volts. Scooter shows no sign of life. I have no powersupply like you do, any way to charge the battery? Green light on charger when I try to charge it. Thanks

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    Well of it's a clone it might have a non smart BMS, try just to charge it as normal as you do. If it doesn't charge then the battery might be faulty or cells went down under the protection level. It needs more work to find out what is wrong with it.

  • @Pimptobizmal
    @Pimptobizmal3 жыл бұрын

    Thank you for the video, wheels on scooter would spin, but whole scooter would turn off when put on floor, bms button pressed, went from blinking blue to solid blue. Can you tell whats wrong with my scooter. Very little mileage. just no usage after 2years

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    Does the battery charge? What is the voltage?

  • @Pimptobizmal

    @Pimptobizmal

    3 жыл бұрын

    @@TechTronic9000 I dont know I havent charged down the battery, before that the battery did charge , voltage showing at 41.2V

  • @Pimptobizmal

    @Pimptobizmal

    3 жыл бұрын

    @@TechTronic9000 any ideas?

  • @xiaobai7060
    @xiaobai70602 жыл бұрын

    how to you trickle charge it if you don't have one of those adjustable voltage chargers?

  • @TechTronic9000

    @TechTronic9000

    2 жыл бұрын

    You can use the normal charger for a short amount of time.

  • @xiaobai7060

    @xiaobai7060

    2 жыл бұрын

    @@TechTronic9000 you mean cute the end of my charger and connect it directly to the output of the battery?

  • @TechTronic9000

    @TechTronic9000

    2 жыл бұрын

    @@xiaobai7060 No, you can disconnect the battery charge cable and jack from the battery, then use that two pin plug and two wires to connect to the battery discharge port.

  • @myunghong9004
    @myunghong90042 жыл бұрын

    I have 3 discharged batteries from different source where can i connect the power supply voltage to boost the batteries. There is only input cables connect to BMI and output cable. Your discharge terminal in the video is that the cable connected to bmi. Please help

  • @TechTronic9000

    @TechTronic9000

    2 жыл бұрын

    You will use the battery discharge port to jump start it again.

  • @aoky79

    @aoky79

    Жыл бұрын

    @@TechTronic9000 discharge port is the black one right? With red and black wire but how can I to connect with orginal charger?

  • @dr-shot-atstream4819
    @dr-shot-atstream48193 жыл бұрын

    hello my question my xiomi does not take gas. I opened the bottom and the battery lights up blue not blinking it is so right. he does not take gas

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    What voltage does it have?

  • @dr-shot-atstream4819

    @dr-shot-atstream4819

    3 жыл бұрын

    @@TechTronic9000 battery status (normal) voltage (41.34) battery level (7830mAh)

  • @dr-shot-atstream4819

    @dr-shot-atstream4819

    3 жыл бұрын

    performance (0.38) Electric (0.01)

  • @dr-shot-atstream4819

    @dr-shot-atstream4819

    3 жыл бұрын

    100%

  • @dduartez99
    @dduartez9910 ай бұрын

    My battery has 1V from the BMS and 12V from the terminals, can it be revived?

  • @TechTronic9000

    @TechTronic9000

    10 ай бұрын

    The BMS usually doesn't show any voltage when it goes into protection. 12V on battery terminals is dangerously low. I would investigate first each cell group and check their voltage. Also check the terminals if they are still properly welded.

  • @tjoey2112
    @tjoey21123 жыл бұрын

    Hallo sir, i have the same problem but i have no that machine to precharge, do u have any idea? Thank u

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    you cab try with the original charger.

  • @tjoey2112

    @tjoey2112

    3 жыл бұрын

    @@TechTronic9000 , i tried already sir, i plug it for 24 hours but nothings happened.

  • @MahiEurope
    @MahiEurope2 жыл бұрын

    Hey mehn,,if i fully charge my scooter then keep it for 2/3 months,,will it happen a problem like this?

  • @TechTronic9000

    @TechTronic9000

    2 жыл бұрын

    Don't store it fully charged it will decrease the lifespan. Store it at 50-60% level. Check from time to time and only charge back to 50-60%.

  • @MahiEurope

    @MahiEurope

    2 жыл бұрын

    @@TechTronic9000 and for every day riding is it ok to charge at 100% ??

  • @TechTronic9000

    @TechTronic9000

    2 жыл бұрын

    Yes, charge as often as possible, try to avoid going very low on charge.

  • @MahiEurope

    @MahiEurope

    2 жыл бұрын

    @@TechTronic9000 yeah!! Thanks👍

  • @r26ff47
    @r26ff47Ай бұрын

    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 ?

  • @TechTronic9000

    @TechTronic9000

    Ай бұрын

    Just leave it on charge for 10-20 minutes and see if it comes back to life

  • @r26ff47

    @r26ff47

    Ай бұрын

    Thanks! I unplugged the balance ribbon, check z fuse ok, check D9 not short cct. B0~B10 are 3.7~v. Then plug in the balances ribbon, at one point it flased blue then started blinking red. But still not taking charge.... Now back to famous blink red 4 times upon power on or reset!

  • @r26ff47

    @r26ff47

    Ай бұрын

    Finally I'd fixed the blink red 4 times - replace the BMS board and now it blinks blue! I hv check n charge up each cells to ~3.8v. Now it can turn on and there are 73% charged.

  • @vimalmech2986
    @vimalmech29863 жыл бұрын

    I recently purchase m365 model and it gives me 14 % of charge taking to 3.3 km from 100% to 30% .....after 30 to 4 it gives me tha same 3.3 could you please what is the reason.....thankyou in advance

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    Use an app such as M365 tools and check each cell voltage, if you observe a difference of greater than 0.2V then you have a bad contact, you can check my other M365 videos when I also address the bad contact problem.

  • @vimalmech2986

    @vimalmech2986

    3 жыл бұрын

    @@TechTronic9000 could you please shre video link .....and also I can't connect with m365 tool app suggest me Another app

  • @TechTronic9000

    @TechTronic9000

    3 жыл бұрын

    For the app to connect enable Bluetooth and GPS on your mobile phone first. Here is the other video: kzread.info/dash/bejne/m35mqth8ftG_nbQ.html

  • @vimalmech2986

    @vimalmech2986

    3 жыл бұрын

    @@TechTronic9000cells voltage differences is 0.05 ..it seems good I think 🤔 😕

  • @joeallen-aldus9757
    @joeallen-aldus97574 жыл бұрын

    Hi I have the same issue, I haven't used the scooter In months and have the red BMS blink of death.. how can I do this without your system?

  • @TechTronic9000

    @TechTronic9000

    4 жыл бұрын

    You can use the original charger if you can wire it to the discharge port, but you need to be careful with polarity and wires not to make a short circuit. Also don't keep it to much connected 5-10 minutes at most should do it.

  • @RMFUNTIK

    @RMFUNTIK

    4 жыл бұрын

    @@TechTronic9000 so you basically charging backwards?

  • @miramon4050

    @miramon4050

    4 жыл бұрын

    I used my charger. 2 wires using an 18g butt connector to the center pin of the plug slightly crimped to fit snug. wrap the other wire around the barrel of the charger. crimp 2 male wire ends and plug it into the battery.

  • @SharkySSharkington

    @SharkySSharkington

    4 жыл бұрын

    @@TechTronic9000 You, my good man are a lifesaver! Just tried it and it turned on after months of being dead! Thank you!

  • @fahdysalim558

    @fahdysalim558

    3 жыл бұрын

    @@miramon4050 are you able to share what it looks like? thanks

  • @minerondemand
    @minerondemand2 жыл бұрын

    I fixed mine by flashing BMS again.

  • @remussebastianmadmax5816
    @remussebastianmadmax58164 жыл бұрын

    It is not good to leave it unloaded, especially for long periods, the batteries are kept only fully charged, or as the energy is easily lost.

  • @TechTronic9000

    @TechTronic9000

    4 жыл бұрын

    For long time storage Li-Ion should be kept at 40-60% SoC and checked regularly not to self discharge lower. The scooter was not mine, i've just fixed it ;)

  • @Cesar-dt9nl

    @Cesar-dt9nl

    4 жыл бұрын

    @@TechTronic9000 Had the mine about 40-60 in storage because of the quarantine for about 3 or 4 months of no use, i charged it 2 weeks ago, would it be possible it lost capacity or power?

  • @THEOFFICIALBABYDJ
    @THEOFFICIALBABYDJ2 ай бұрын

    He tested positive on negative?? I thought you have to match red red black black

  • @TechTronic9000

    @TechTronic9000

    2 ай бұрын

    When you use a digital multi meter wire colors don't matter, it will show a - (minus) sign when it's reversed.

  • @khachaturarevshatyan8527
    @khachaturarevshatyan85273 жыл бұрын

    Hi bro I replaced new battery to my scooter but it doesn’t turn on...?

  • @ASTRO-ri6ex

    @ASTRO-ri6ex

    2 ай бұрын

    Probably its a faulty bms

  • @khachaturarevshatyan8527
    @khachaturarevshatyan85273 жыл бұрын

    The blue light is stable no flashing

  • @nin1ten1do
    @nin1ten1do2 ай бұрын

    basicly that spotwelded batery balancer rail where WORN OUT! remove it.. solder that directly on PCB and enjoy free kilometers..

  • @Nayay4
    @Nayay43 жыл бұрын

    i got problem not charge and the blue light not blinking what happened? help me

  • @belgividsdesigns3880

    @belgividsdesigns3880

    3 жыл бұрын

    broken battery cell's

  • @tantran2711
    @tantran271112 күн бұрын

    how can I do this without dc powersupply?

  • @TechTronic9000

    @TechTronic9000

    10 күн бұрын

    You can try to use the original charger, but it's a bit fiddly to be able to connect wires from the charger. You need to take care not to short out any of the wires.

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