Hello. I was able to restore the BMS board from a Makita LXT 18v 5Ah battery. (This is blocking or protecting the BMS board itself). When you pressed the button, two LEDs blinked alternately; this battery was not charged on the charger. After one procedure, this state went away, instead it became different; after pressing the button, one left segment of the indicator began to blink 10 times. The battery also did not charge on the charger. But this too was repaired. If you are interested, I will write how I did it.
@Professor_Mori_DIY
8 ай бұрын
Thank you for your comment. It's amazing that all the errors have been cleared and you can now charge! I would like to know how I can remove it. 😄
@АлексейГорбач-щ2е
7 ай бұрын
please tell me how you did it
@АлексейГорбач-щ2е
7 ай бұрын
I had a case where the left indicator was blinking, but the cells were fully charged. I fixed this problem. but what did you do when the two indicators flashed alternately. Tell me, please
@ВилиамРит
6 ай бұрын
@@АлексейГорбач-щ2е Алексей .The battery (BMS board) was protected. When you press the button, the indicator segments begin to flash in pairs. In this case, the battery is not charged, and the charger indicates a faulty battery. The original tool doesn't work either. 1) SOLUTION. It was possible to remove the battery from this state. You need to install and remove the battery 20-25 times into the Charger, without stopping (with a yellow connector) or into the original one or into a Chinese analogue with support for a test connector. After this procedure, this blinking went away (did not appear again). But the BMS board switched to a different state. When you press the indicator button, one left LED starts flashing 10 times. The battery also does not charge on the charger, the indication of a faulty battery turns on. 2) SOLUTION: To get out of this state, I unsoldered the board from the batteries, shorted the plus and minus terminals only on the board itself, with a piece of wire, for 3-5 seconds, did this several times for reliability. I soldered the board back to the battery. The battery began to work as it should, as if it were in good working order.
Maybe you know how to fix problems with two alternately flashing indicators?
@Professor_Mori_DIY
6 ай бұрын
Maybe it's locked, so the only option is to replace the board. However, if you replace it with a compatible board, it may not be safe.
@АлексейГорбач-щ2е
6 ай бұрын
I know. I'm talking about the comment below. Didn't they give you a solution?@@Professor_Mori_DIY
@Professor_Mori_DIY
6 ай бұрын
@@АлексейГорбач-щ2е There seems to be no other solution 😭 I would like to ask someone who has the technical ability to analyze the board 😅 My technical skills are low 😭
Ещё -> Разблокировка АКБ Makita LXT 18v - Видео с названием: "Makita LXT 18V Batteries UNLOCKED! Introducing OpenBatteryInformation" Вышло 14 июн. 2024 г. Видео на английском, автоперевод есть в Ютуб. Подробности в описании под этим видео: kzitem.info/news/bejne/tWxuz6d7oImoqaAfeature=shared
@Professor_Mori_DIY
3 ай бұрын
Спасибо за информацию! Это видео потрясающее😄 Впервые вижу его полностью разблокированным!
Makita battery. How to unlock and restart the BMS board? After a month of operation, the LEDs began to blink and it would not charge. (as in the 10 second video on the link) The BMS board does not work. The battery is original, new. But I opened it myself after it was blocked. There is no longer a guarantee. / The battery pack itself works, everything is fine with the cells. Temporarily soldered a jumper from the short contact group to the adjacent positive contact group, the battery pack works, but in this option there is no protection for the cells kzitem.info/news/bejne/2IWE136KfKWZaHo
@Professor_Mori_DIY
8 ай бұрын
Blinking as shown in the video indicates a battery problem. I think it may not be possible to unlock BMS. If it's for a month, it might be better to consult with the retailer 😅 Although I don't recommend it, you may have no choice but to replace it with a compatible BMS.
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