How To Restart Recelled Laptop Battery

If this does not work on my battery, what can I do then?

Hey i used this method but my battery laptop still not working

why they design this to make people struggle, they making alot of money, and many2 people struggle and lost , this designer is a firaun genetic

tried this withA41-X550E -- 112-1979H REV A, didn't work after recelling the battery, bummer :'(

thanks a lot

Keşke bağlantıları nasıl yaptığınızı daha detaylı göstetseydiniz fan dışında ne bağlandığını göremiyorum

Positive to what??

How many ohms?

I replaced cells on two laptops, different brands. When I charge the cells, the laptop happily uses them. But none of them charge the batteries, HP one says "connected, not charging" and the other one says charging, but it's not.
Will try this tomorrow and see if it solves my irrelevant issue.

Thanks for the video!!!

Thanks a lot fam!!!

this did not work on Edge 14 battery. nothing happens.

didn´t work for me

Did not work for the Lenovo battery LY10P6Y21 I have, I guess the company really made sure to have the bms shutdown when the cells are no longer working properly.

Dell D600 battery (C1295) With a jumper between Ground and the SYS PRESENT pin I can measure voltage and discharge the battery using a R/C charger /discharger. However I can not charge at the out most pins. No current flow goes into the battery.
If I put the battery back in the laptop it will charge it full again. Would you know if I need another jumper to allow the battery to accept charging

just did that, its 2021, ten years after the video...still amazing.

thats good wisdom

Many thanks from Spainl!! I tried everyting, tutorials, videos, manuals but nothing worked to restart it including to connect + to - and your trick works!!!!

Hi, mine is lenovo g50-80 ,i changed the and no output in the connector, i tried the jumpstart but it didn't work, is any other way to jumpstart.

oh thankyou i will try

Thanks for sharing the tip.

Wow this works. Same situation here for a recelled lenovo t220t battery. Thank you for sharing!

It would be better , first of all , to declare :" Only good with very old battery model with simple BMS included."
Now recent BMS have a built -in chip which refuses current output after repair if they are disconnected (necessary for changing the 18650 elements) So, after changing you have good voltage at the main ports between battery and BMS...but nothing at the BMS output.

If the battery is not completely dead (not 0V) ,a possible solution (I'm not sure) would be first to connect the BMS to another 12v source , so it keeps voltage when we cut the wires...But now BMS are really "sophisticated" : if we install new fully charged batteries, they detect other batteries and not the genuine , and lock the output....Possible that in the PC the installed Bios makes the same...Nothing to do with computer safety...but with seller safety!

In the future with ALL lithium batteries , the problem for us will not be the elements but the deliberate complexity of the BMS and the communication with the charger or the tool itself...and you understand why....They will do the same as for printer's cartridges ...and explain it's first of all for safety (??). I have the same problem with E-Bike batteries. And I don't know with the new screwdrivers?...

Thank you very much bro

I have a hs04 hp laptop battery i did the same thing but nothing happens please help me

Not working on delk

I need help please , when I connected the positive end of the battery to the p+ pin it sparks but
connected the the positive end of the battery to p - pin but nothing
No success
Battry is Hp pro6
Hp battery for 4440s
Please urgently need help

How to identify the pozitive pin ?

yes, it did work, instead of fan , i connected battery to laptop and with jumper wire started laptop and it started - thanks

how to reset hp laptop battery life cycle?

Good job,thank you

My results:
After replace the battery cells, the voltage in the connector is equal 0. Then i tried to
touch a wire in the positve (battery cell) to positve (connector) and nothing, tried too with negative and still 0v. Not working to connecting negative to switch, but if i do a jumper between postive from cell to positve from connector, i have 14,60v and i can charge on laptop.
If i remove the wire, nothing work.

Hello sir, please help me
I did replace the cells and the bms connector is not showing any voltage, I also did the method you shown ,
The fan working when giving direct voltage but the battery /bms is not resetting
Plz help me

Put into laptop

It is the best video I have seen on the subject

I have an HP Envy laptop, it has 3 batteries and these have a good voltage of 3.7 volts, but there is no voltage in the terminal block slot, I have tried to do what you do in the video but I am not sure which are the positive slots and the negative.

Thank you! Worked for my 2 Lenovo T400s batteries.

taenking sir is very good

Hi. COol information. Sadly I tried on an LG S425 with a SQU-1007 battery, no success. :( Maybe damaged it, or it does not reset this way. Tried both - - and + +

Hi, I have tried above method with no luck.
I have replace the battery cell and then run the HP Battery Check apps, the result :

Cycle count = 343/300
Design Capacity = 2792 mAh
Full Charge Capacity = 1 mAh (0%)
Remaining Capacity = 0 mAh
Current = 0 mAh
Terminal Voltage = 15436 mV
Design Voltage = 14800 mV
Cell Voltage 1 = 3814 mV
Cell Voltage 2 = 3903 mV
Cell Voltage 3 = 3767 mV
Cell Voltage 4 = 3953 mV


is there any way to reset the battery controller lock?

Do I have to use a resistor? if I don't use it, does it have an effect with the batr, for jumpers, + on the PCB - is it really like that

Super Video.Danke!

Morjens! This trick did not work for me. My battery was for a Thinkpad X61

sadly it didn't work for me. maybe I damaged the protection circuit but when I connected the + of the batteries to the + of the circuit's output it just started to smell burned :/

If I rebuild a t61 pack, will this trick make it work?

You are genius! First I replaced 6 cell batteries with new ones on my gateway (AS07B41), thought is fine, tryed to check output voltage (nothing). Secondly changed 8 cell batteries on asus (A42-M70), checked voltage in batteries inside was good-14.4V, output voltage (nothing). I thought burned both bms of batteries. I will try as soon as possible. Thank you very much!

what about shorted the 2 pinsic counter charging time IC?. is it related?

Nice job bro..I am same problem like you..but my battery is WDXOR Battery inside of Dell 5567
rating is 11.4v