I have opened 1.3ah (no bms) and 4ah & 6ah Bosch 36v batteries and the 4 & 6 had individual cell wires to the board at the top which implies at least cell-level monitoring so a bms of sorts. The smallest Bosch barries just monitor temperature.
I need 2 complete battery clusters but don’t have the spot welding gear - do you sell the battery packs in that configuration ( i Can do the soldering and replacing into the case myself and save shipping 2 dead batteries )
Done the same, but charger will not charge the battery with the new capacity. Any idea. A hint to others. Check the size of the new batteries. If they are a fraction bigger in diameter the battery pack will not go into the box. Had to omit the red spacers
I have a green garden 36v battery that I left out in the sun. Oops! It won’t charge (red temp light) but has 30.4v on a multi meter. Any idea what could be the problem?
old comment I know but in case anyone has the same problem - Charger thinks its faulty but it is probably just too flat for the charger. I jump started mine from another battery for a few seconds and charger then charged it fine
It can be, but the battery he checked is different. INR18650-25R is not 13P. Maybe the date code is different as well. Anyway, thanks for the video and please let me know where can I buy original VTC6 cells. Unfortunately it is really hard to find not fake Sony batteries in China or even in Hungary.
I think an average house has at least 5 battery packs. Some a lot more. Considering the high cost of these batteries, a diy ability will pay good dividends. As far as home appliances are concerned, Li batteries will dominate another 10 years easily, if not for technical reasons, then surely for its light weight versus capacity.
@@KhurshidKarimi I agree. I have several. If the spot welder was a lot cheaper I’d buy one and refurb my batteries that are showing signs of failing like my cordless 36v lawnmower one
I have opened 1.3ah (no bms) and 4ah & 6ah Bosch 36v batteries and the 4 & 6 had individual cell wires to the board at the top which implies at least cell-level monitoring so a bms of sorts. The smallest Bosch barries just monitor temperature.
Hi,
Could you share the application you used to decode the 18650 battery?
I need 2 complete battery clusters but don’t have the spot welding gear - do you sell the battery packs in that configuration ( i Can do the soldering and replacing into the case myself and save shipping 2 dead batteries )
Very nice job and upgrade. I'm a little disappointed you didn't clean up the housing
Boohoo
what's the middle elecctrode for?
No room to spare in that case. Nice rebuild.
I know to avoid these in future then. Or be very careful with re/building
very very impressed thank you - watched the whole thing though I worked out I'll not be giving it a go myself very early on.
Amazing, could you put the place where you bought the batteries and the other stuff, please? Thanks
I see you have made some very good mods to the welding tool can you tell us how you did them
Done the same, but charger will not charge the battery with the new capacity. Any idea. A hint to others. Check the size of the new batteries. If they are a fraction bigger in diameter the battery pack will not go into the box. Had to omit the red spacers
Fixed it. Cleaned the contacts of the charger
Thank you, very interesting, I have an AL3620CV, where can I find a circuit diagram ?
Sony VTC6 were a great choice
I was just telling you to use some silicone spray, good thinking.
Hello John.. Surely silicone spray would be a better choice.. but unfortunately my silicon spray was empty, so i worked with what i had... ;)
Which spotwelder should be used? Which power rating? Can you suggest a certain type / brand?
Kweld is a good choice.
What material strip used in video to spotweld together? Nickel coated steel or pure nickel?
Pure nickel... also coated is ok.
Are you sure there is no bms on the pcb? Very nice video btw!
What's that app name?
12:50 the batteries with to high IR did you change the out with some others, you skip it in the video?
bosch selects the cells and, as you can see, it can do it well
They sometimes put the bms circuitry in the charger
Yes this is true... but here didn't axis even balance wires for each battery... how charger read each battery and decide when must stop charging..?
hello, nice video. can you made a video from your spotwelder konstruktion?
Excellent video, very useful. What's the welding machine you use at 17:00? Thank you.
Thanks for the video
very nice video, good job
Thanks man..
I have a green garden 36v battery that I left out in the sun. Oops! It won’t charge (red temp light) but has 30.4v on a multi meter. Any idea what could be the problem?
old comment I know but in case anyone has the same problem - Charger thinks its faulty but it is probably just too flat for the charger. I jump started mine from another battery for a few seconds and charger then charged it fine
Is this not balanced?
Good Work!
Thank you..!
Nice video
great work but where is balance wiring
Yea. this is mystery...
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скажите банки с алиэкспресс?
Alibaba drug
Do you think the cells really was from 2000? Maybe it is not right.
Maybe... but i am sure that my customer have them at least 10 years + tool shop + factory = about 11-12 years...
It can be, but the battery he checked is different. INR18650-25R is not 13P. Maybe the date code is different as well.
Anyway, thanks for the video and please let me know where can I buy original VTC6 cells. Unfortunately it is really hard to find not fake Sony batteries in China or even in Hungary.
Its not imaginable that a battery pack as of 2009 contains batteries of 2000!
Great video. But not a task for a DIYer. No one is going to invest in a spot welding machine for one battery
I think an average house has at least 5 battery packs. Some a lot more. Considering the high cost of these batteries, a diy ability will pay good dividends. As far as home appliances are concerned, Li batteries will dominate another 10 years easily, if not for technical reasons, then surely for its light weight versus capacity.
@@KhurshidKarimi
I agree. I have several. If the spot welder was a lot cheaper I’d buy one and refurb my batteries that are showing signs of failing like my cordless 36v lawnmower one
عالی
hai le palle quadrate amico.top
Top
No cell lvl balance , lol bosch!
Дизлайк за то что не промыл плату
2in parallel 10 in series 1300mah battery😢