I did it man! At first the charger light turned off as soon as I connected it to the hoverboard, but I knew the battery was completely empty because I tested with a multimeter, so I left it connected. After a few minutes, the light turned on, but blinking and color green, I left it connected for around 15 minutes then disconnected and connected again, and boom! Now the red light turned on, just like in your video, now I'm waiting for the hoverboard to be fully charged. I'll update this comment as soon as it's fully charged and tested. Thanks man, greetings from Mexico.
Unfortunately this is NOT safe but highly dangerous. The battery management system you have bypassed ensures that there is never more than 4.2 volts across any individual set of two batteries. No 2 wired charge can ever do this as it can not sample each set of two batteries. You may have a charger that switches off after 42 volts ( I have never seen one, the chargers I have seen, the red light just means the BMS is taking current, Green light just means the BMS is not taking current) but if there is a short in a few sets of cells or they do not all charge at the same rate you can easily exceed this 4.2 volts. Yes it may work but this is still highly dangerous.
@@sarcastrophe6992 his point was that: even if the good charger shuts off automatically, you can overcharge a single cell. That WILL happen when one battery cell goes bad and then another cell gets overcharged to compensate. Each cell should have 4.2 volts. 10 cells added in series makes 42 volts. If one cell is bad and has 0 volts, then the other cells will have to have more voltage to still total the 42 volts for the charger to cut off. And they will be overcharged. Have you heard of lithium batteries exploding or catching fire? That is a definite possibility if one cell goes bad causing another to overcharge!!! Maybe the reason the circuit board stopped charging is because one cell is bad, and now you are overcharging all the rest of the cells the moment you installed this jury rig fix. It may not blow up until a second or third cell goes bad. But John Henry is so absolutely right!!! It is very dangerous to bypass the safety circuit. He has spoken like a true electrical engineer. GB, BSEE from U of H 1980.
This is stupid dangerous! The charger doesn’t do the same work as the BMS connected to the batteries. The BMS is there for a very important reason, and that’s to make sure every single battery charges properly and make sure non over charge and cause a fire. I really hope no one listens to this joker!
You can message me I took my hoverboard apart I've already taken everything apart on negative C I've taken that off and resoldered the negative to negative B. It says it's a Samsung battery I charged it for about 3 minutes and both wheels are spinning so now I will let it charge for 30 minutes and see if it is operational Complete. Shawn
Yes. If you over charge it because now he bi passed the part that stops the charge when full. IF you use a smart plug you can set it to turn off after 2 hours or however long it takes to charge then you're much safer but it won't guarantee each battery is equally charged like it would be with the other connection it came with.
it is not working could it be a charger issue battery was not charged at all i did the method and left it for charging after 1 hour charger show green light so i un plug it when i ride it it started beeping red battery sign any help???i am so sad
If you are charger is working you can remove battery protection board may be battery protection board not working so in this case direct connect charger with battery but you have to be auto cut off charger .
Not really if you have 1 bad cell it will heat up when charging become over critical burst into flames an shoot across your floor like a rocket, I've had that happen to myself and I ended up losing all the batteries because they all burnt
Instead of playing with fire can't you just buy another BMS board and replace the one that's not working instead of doing all that soldering crazy stuff
@@pdbrooks7647 because if one cell goes bad and you have bypassed the BMS, the others can overcharge and catch fire or blow up.... You may have heard how dangerous lithium batteries can be.
I did it man! At first the charger light turned off as soon as I connected it to the hoverboard, but I knew the battery was completely empty because I tested with a multimeter, so I left it connected. After a few minutes, the light turned on, but blinking and color green, I left it connected for around 15 minutes then disconnected and connected again, and boom! Now the red light turned on, just like in your video, now I'm waiting for the hoverboard to be fully charged. I'll update this comment as soon as it's fully charged and tested. Thanks man, greetings from Mexico.
thanks for comment
Do i need a new batteri?
Ya no dijiste nada, explotó o si funcionó, es que quiero hacer lo mismo🤣😂
😅 are yo going to update
i should try da same thing tho
Thank you very much just rewired mine 👍👍👍
I am facing the same problem in my hoverboard, i will try this
did it work?
a great tutorial video, thank you!
Thank u so much for good comment 👌👌👌👌👌
Unfortunately this is NOT safe but highly dangerous.
The battery management system you have bypassed ensures that there is never more than 4.2 volts across any individual set of two batteries. No 2 wired charge can ever do this as it can not sample each set of two batteries. You may have a charger that switches off after 42 volts ( I have never seen one, the chargers I have seen, the red light just means the BMS is taking current, Green light just means the BMS is not taking current) but if there is a short in a few sets of cells or they do not all charge at the same rate you can easily exceed this 4.2 volts. Yes it may work but this is still highly dangerous.
I think you need to invest in a good charger if your doesn’t shut off automatically
@@sarcastrophe6992 his point was that: even if the good charger shuts off automatically, you can overcharge a single cell. That WILL happen when one battery cell goes bad and then another cell gets overcharged to compensate. Each cell should have 4.2 volts. 10 cells added in series makes 42 volts. If one cell is bad and has 0 volts, then the other cells will have to have more voltage to still total the 42 volts for the charger to cut off. And they will be overcharged. Have you heard of lithium batteries exploding or catching fire? That is a definite possibility if one cell goes bad causing another to overcharge!!! Maybe the reason the circuit board stopped charging is because one cell is bad, and now you are overcharging all the rest of the cells the moment you installed this jury rig fix. It may not blow up until a second or third cell goes bad.
But John Henry is so absolutely right!!! It is very dangerous to bypass the safety circuit. He has spoken like a true electrical engineer.
GB, BSEE from U of H 1980.
Bro I have the same charger as you do, so does it have auto cut feature.
Mine hoverboard has two batteries should I do this to both batteries?
i have different battery, and different bms how do i figured it out?
i have the same problem can i send mines to you and let me know how much to fix it..
Bro I ain't taking all that out I don't trust myself😂
Thanks very good
thanks a lot bro
U most welcome
This is stupid dangerous! The charger doesn’t do the same work as the BMS connected to the batteries. The BMS is there for a very important reason, and that’s to make sure every single battery charges properly and make sure non over charge and cause a fire.
I really hope no one listens to this joker!
Well not every single battery but each series which has however many in parallel but your on the right track
If I on the hover board it's blinking green light both side what is the problem then not charging
Is it safe? And please tell how to know charger is auto cut off or not
Are you sure that hoverboard have auto cut charging plz reply me
Yes this hoverboard has auto cut off don't worry my friend
@@YoursSmartTV Thankyou for reply
And plz help me my hoverboard is damage due to 250v direct goes in the charging port plz help me make a video on it
I think i should got to hoverboard shop to repair my hoverboard😁
Nice👍
my hoverboard isnt charging but have light when i open the buttom while charging
You can message me I took my hoverboard apart I've already taken everything apart on negative C I've taken that off and resoldered the negative to negative B. It says it's a Samsung battery I charged it for about 3 minutes and both wheels are spinning so now I will let it charge for 30 minutes and see if it is operational Complete. Shawn
can the battery explode or catch fire or something after this repair?
Yes. If you over charge it because now he bi passed the part that stops the charge when full.
IF you use a smart plug you can set it to turn off after 2 hours or however long it takes to charge then you're much safer but it won't guarantee each battery is equally charged like it would be with the other connection it came with.
Good video
it is not working could it be a charger issue battery was not charged at all i did the method and left it for charging after 1 hour charger show green light so i un plug it when i ride it it started beeping red battery sign any help???i am so sad
My hoverbaord in not charging I don't know why,but I really want to ride it its my first time
If you are charger is working you can remove battery protection board may be battery protection board not working so in this case direct connect charger with battery but you have to be auto cut off charger .
Is it very safe to do it
if u use auto cut off charger don't worry it's fully safe
Not really if you have 1 bad cell it will heat up when charging become over critical burst into flames an shoot across your floor like a rocket, I've had that happen to myself and I ended up losing all the batteries because they all burnt
I got same hoverboard
Why did you not show us what you did to the wire
I just connected battery wire without protection board . Hoverboard charger has auto cut off .u can connect direct charger wire to battery
My charger doesn’t even light up like yours could my charger be bad
Instead of playing with fire can't you just buy another BMS board and replace the one that's not working instead of doing all that soldering crazy stuff
I don't know but when I plug the cable the light is going and that toy guns smells u know that smell cames
My charger is showing a red battery light and hoverboard a orange battery light
Y así se fabrica una bomba🤣
my battery different how i can show it to u?
every battery has protection board just disconnect protection board from battery and direct connect with charger
@@YoursSmartTV okey i will try tomorrow :) thnks
Tq sir
Bro I’m not a mechanic I can’t do allllll this
Same
get the bms replaced. orr get a new battery pack with bms and recycle the old one. This tutorial is scaring meh...
Fake
This vid is the worst
Why?
@@pdbrooks7647 because if one cell goes bad and you have bypassed the BMS, the others can overcharge and catch fire or blow up.... You may have heard how dangerous lithium batteries can be.
Nice video
I opened my battery it has no bms