You need to use cells with similar resistance and capacity. 25-R are 2500mAh, old cells are 2000mAh (New). There will be problem with balancing. You should use Samsung 20R or something similar as replacement.
@RefurbishmentKJ2 жыл бұрын
Thanks for reminding
@davey2k122 жыл бұрын
I've recharged a few that 1 cell went too low and wouldn't charge and don't look like the BMS balances nothing just a protective circuit less there's a new version .... Put what ever cells you want in there cus the 2ah ones am pants anyway
@MrGodsking Жыл бұрын
@@RefurbishmentKJ can you upgrade mine if I post to you they are all new but faulty
@orlatris962 жыл бұрын
Excellent, I loved your work. Highly didactic, perfect. Thank you so much for sharing this simple work. If possible, could you tell me what liquid you used to clean the plastic parts? A hug
@RefurbishmentKJ2 жыл бұрын
We use car engine compartment cleaner, which is called nose water here. I don't know what to call it in English. Good degreasing and decontamination effect.
@mcirelandosharma7411 Жыл бұрын
Carb cleaner would be an automotive name for it 👍
@silverxiree Жыл бұрын
@@mcirelandosharma7411 no it is not the same thing. carb cleaner would ruin the plastic parts. this solution is called in English exactly engine bay cleaner or engine compartment cleaner.
@Erdie657 ай бұрын
Great video! Just a question: How did you weld the contacts to the liIon cells. Which tool do you use for it?
@RefurbishmentKJ7 ай бұрын
Thank you!It is welded with a spot welder.
@MrNickadu6 ай бұрын
Excellent work ... well done !!! I wanted to ask you, what SPOT WELDER did you use to make the electrical connection to the batteries?
@RefurbishmentKJ6 ай бұрын
The spot welding machine is made by myself and is controlled by super capacitor and mos tube.
@MrNickadu6 ай бұрын
@@RefurbishmentKJ Thank you for your answer. Do you have a video of your construction of spot welding machine ?
@ghostalpha68732 жыл бұрын
hello, good job you did there. but I'm not sure it's a good idea to replace only 2 cells with different cells, it could cause problems in the future. that said, it's a nice repair
@RefurbishmentKJ2 жыл бұрын
Thanks, that's not right, but I don't have any other batteries.
@Bianchi77 Жыл бұрын
Creative video, thanks for sharing :)
@RefurbishmentKJ Жыл бұрын
😁
@wizzardrincewind94582 жыл бұрын
good work!
@RefurbishmentKJ2 жыл бұрын
Thanks!
@nothingbutthetruth790011 ай бұрын
Is it not better to just replace with same amp hours cells so theres no balance problems?
@RefurbishmentKJ11 ай бұрын
I don't have a battery with the right capacity.😅
@greennich7772 жыл бұрын
Good job 🥰😍🤩🥰😍🤩
@RefurbishmentKJ2 жыл бұрын
thank you
@ZangerMarvin19 Жыл бұрын
Wat machine you use to connect the connection plate back to the battery cell? Looks like point welding but i need to know wat is the name of it machine
@RefurbishmentKJ Жыл бұрын
It's a spot welder
@ComputerTechNL4 ай бұрын
Use the orginal nickel strip that you use is why too thin
@MacStrange2 жыл бұрын
Really good
@RefurbishmentKJ2 жыл бұрын
thank you
@kestans2 жыл бұрын
Hi, it I have received 2Ah battery, manufacture in 2018. It volts are ok but it was not charging (red and green blink) then it drill only works for 1 second and shuts down until next push of button . I measured all cells was perfect balance. I then removed pcb and on other side found one track damaged it was a cell connection to balance circuit, after solder back it then started to charge but after 5 minute of charge it then again green and red led blinking and still same it after one second it drill shuts down. what can be wrong....
@RefurbishmentKJ2 жыл бұрын
Some boards are protected and have a short circuit before that can cause the PCB to lock up. This fault seems to be a bigger problem with the pcb.
@florinmunteanu1670 Жыл бұрын
Metti link con tutti prodotti che h ai utilizzato per riparare questa batteria....sarebbe comodo per noi ...così compriamo pure noi tutti materiali .....così cerchiamo di riparare pure noi una batteria....grazie
@mandamados2 жыл бұрын
never use batteries with different capacity, they charge and discharge with different rate
@RefurbishmentKJ2 жыл бұрын
Thanks for the reminder, I will pay attention to the battery next time.
@nelchan242122 күн бұрын
please don't add cells with higher capacity
@achimgazelle3641 Жыл бұрын
Is it also possible to fit 5x Panasonic NCR18650B 18650 3400mA? That would theoretically be 17A strong or am I wrong?
@XSAILOR65 Жыл бұрын
Wrong. 5 will give You 3,4 A, with 10 (5s2p) of those You will have 6,8 A. NCR18650B has too bad max discharge current, not working in this application.