re sleeving 18650 cells
- Thread starter paulie
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OffGridInTheCity
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I don't often resleeve as it's a fair amount of work to do a 1,000 cells. But when I do....
I setup 20 in a row vertically on my desktop with sleeves in position. Pop in the + insulator on top and then blow the heat gun at the top from a angle below to curl the sleeves over the top insulator / get things pretty well set. Then lay them flat and roll back and forth with gun air flow and a stick till it's all snug. This get's 20 cells at a time.
I setup 20 in a row vertically on my desktop with sleeves in position. Pop in the + insulator on top and then blow the heat gun at the top from a angle below to curl the sleeves over the top insulator / get things pretty well set. Then lay them flat and roll back and forth with gun air flow and a stick till it's all snug. This get's 20 cells at a time.
If I thought I could get away with it, I would try that but most of the time, my air gun, even on low will blow out the insulator lol. Hence the use of my asbestos fingers. Also, the batches I have been getting have been out in the weather I suspect and a lot of them look ok but very often there is a little bit of rust under the insulator. I discharge and recycle these ones. I am happy to slowly build up the power wall, 7s80p at a time. Its more of a hobby than a drive to be self sufficient. We have 4Kw of solar panels which were fitted in 2015, grid tied no batteries. It was a good (UK) government scheme then that pays a 'feed in' tariff. We get approx £800 back per year.
so my powerwall will gradually build up from supplying the garage, lights fridge freezer to being able to power the house at night via a transfer switch. This way will not affect the feed in tariff. I love your set up by the way.
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Wolf
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My first "Frankenstein" Battery I resleeved every cell (1120) as I found corrosion under some of the insulators even without any external indication.
My method included using magnets to space the sleeves correctly.
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Wolf
My method included using magnets to space the sleeves correctly.
Wolf's PowIRwall
It is time! The journey is about to begin its second phase and I will record the progress here. If you are an avid reader of this board you already know that I have been collecting sorting and testing 18650 cells for about 8 month now. I already have a functional Pb based system up and running...
I like the magnet (Petes) idea but have not got around to it yet.My first "Frankenstein" Battery I resleeved every cell as I found corrosion under the insulator even without any external indication.
My method included using magnets to space the sleeves correctly.
WolfWolf's PowIRwall
It is time! The journey is about to begin its second phase and I will record the progress here. If you are an avid reader of this board you already know that I have been collecting sorting and testing 18650 cells for about 8 month now. I already have a functional Pb based system up and running...