Soldering 21700 battery pack. Making high current battery pack without spot welder
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- čas přidán 21. 10. 2023
- Website: customsahkopyora.com
Tiktok: / pajajaska
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I do not recommend soldering these batteries, but if you do, do it the right way
Soldering 23s7p battery pack from samsung 30t cells
It is important to use powerful soldering iron and big tip, so the cells will not heat so much.
I used 0.2x7mm copper strip and 200w soldering iron
Battery is still in progress.
#soldering #18650 #21700 - Věda a technologie
Sorry for the pendantic questions but what is the temperature of the iron tip you are using on this video? Where did you get the copper strips? What is the thickness of those copper strips?
Thanks in advance!
I'm actually not sure what the soldering iron temperature is. It is 200W soldering iron and it doesn't have adjustable temperature setting. those are 7mmx0.2mm copper strips from here: vi.aliexpress.com/item/32951994968.html?spm=a2g0o.order_list.order_list_main.36.5a3b18028Rb62l&gatewayAdapt=glo2vnm
Cool. How many amps continously those copper strips can handle? It is real copper?
@@Full_Throttle_no_Brakes It seems to be real copper, its not magnetic. I have been using it on many battery packs with no issues. One 0.2x7 strip can handle easily 30A peaks. I have builded samsung 30t 24s12p battery pack with this same technique. I take 330A from that battery with no issues.
@@pajajaska Awesome. In the future I might use your technique instead lipos batteries on my builds
450°c and you need a good 200w iron but not that stupid looking thing in the video
Thank you for the video. I was wondering how to do this properly. What wattage iron are you using? I have an 80 watt. Is that enough?
I have 200w iron. Im not sure if 80w will be enough. Also having a big tip is important, so use largest tip you have. If it does take too long to melt the solder to the battery you need bigger tip and more powerful soldering iron. I recommend to practice with scrap cells first.
@@pajajaska thanks for the tips!
I’m curious too, I have a 500w soldering axe given to me as a gag gift. It’s not regulated and the tip is thicc, probably not a great idea. 🤷♂️
How do you charge your batteries
I have adjustable charger. I can charge any 0-120V batteries with it
It's your website in English language. also can i use spot welder on this copper strips.
Yea, there should be a translate buttons on the corner. If you want to spot weld copper you need to use nickel copper sandwitch method. So you put a nickel strip top and copper strip at the bottom. Its hard to spot weld only copper.
@@pajajaska Thank you for the info.
@@pajajaska I see you scratch the top of the battery or i'm wrong??. if you scratch then you doing it because the soldering point have better grip yes???
@@operatorpsiochy592 those cells had old spot welding marks, so I had to grind them flat. I have found that scratching the cell is not necessary if you want to solder cells. Just make sure its clean. But if the solder doesn't want to stick I would then try sanding the cells.
@@pajajaska Thank you for the answer😉
A ten pakiet do Dirt Bike 😀
What type of solder as Lead free is shit????
Actually I used lead free solder, but lead solder is better for sure
this is ultra dangerous. Very bad idea.