Beginners Guide to Processing 18650 Cells | Cell Database


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Spot weld fuse wire to your packs
#1
Video 
Quick video i made. I have been running with it for a while but decided to its time to publish the video in question

mormor1971, mike, kennl And 2 others like this post
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#2
Great video, thank you! It sounds tricky to do though if you have many different cells in your pack. I noticed with soldering too that different metals work differently. If you're spot welding and you have to constantly adjust the current for the battery you're on, that would get annoying. Plus you're risking burning holes in the cell and fuse wire. On the other hand, if you have all of the same cells in your pack, you could zip through pretty fast.
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#3
Correct. It differs a slight bit but you have quite a play in terms of adjusting the current. I have had a couple of cells that i know that i had to turn up a bit and you get used to that quite fast. Most of them so far have been working on same current.
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Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 83kWh LiFePo4 | 10kWh 14s 18650 |  66*260W Poly
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#4
Ill watch it when I get home after work. Sounds interesting!!
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#5
try some aluminum to the battery.

and i spy some interlocked relays on your bench.
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#6
Follow up on the spotwelder!

After using it for >1000 cells Im still happy with it.

Its recommended to have 16A fuse for it and slow blow (230v Version)
Links to it can also be found in the video.



Korishan likes this post
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Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 83kWh LiFePo4 | 10kWh 14s 18650 |  66*260W Poly
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#7
Awesome video. I bought the spot welder. Thanks for showing this. I was trying to figure out how I was going to make it work with fuses. So happy to find this.
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#8
Your welcome! Fusing works rather good i must say.
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Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 83kWh LiFePo4 | 10kWh 14s 18650 |  66*260W Poly
Upcomming: 14S 18650~30kWh | Automatic trip breakers, and alot more
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#9
Another one to the series!  In next i should perhaps tackle the nickel strips and those. 




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#10
And if you want to build your own perhaps?



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