cadric
Member
- Joined
- May 3, 2018
- Messages
- 110
Hi Gents,
finally I think I can give something back to the community and all you great Guys, that helped me on my way to build my own Powerwall.
For around a year I collected cells now, a lot of them in sealed e-bike Packs, which were a pain when it came to extract the single cells but had most of the time only the BMS broken and the cells still very usable.
Some of you tried to help me with tipps and I found out that I was not the only one here struggeling with theses packs.
Then I tried to use them as a pack as they were and just extended them to 48 Volt, which I think was the second best solutioin.
But now I think I have the best solution:
I used a Pack, where I already stripped of the bus bars and a lot of the black sealing for the first test.
I bought a so called Forstner Bohrer ( didn't find an english description ), normally used to dril joint holes in furniture doors, with 18mm Diameter, cut out the inner centering drill
and drilled on the negativ side of each Cell.
Then I used a plastic pipe with a dowel in the corresponding diameter for the positive pole
and carefully used a hammer to drag the cells out of their cage from the pos side.
Mostly the shrink got lost, but that is ok.
Importand ist, neither the negative nor the positiv pole get hurt this way.
so now I got a lot of mostly perfect cells:
That is my way to go now.
I hope this is also off use for some of you.
P.S. What I forgot to mention: Use a stand drill for being as accurate as possible.
Reagrds
cadric
finally I think I can give something back to the community and all you great Guys, that helped me on my way to build my own Powerwall.
For around a year I collected cells now, a lot of them in sealed e-bike Packs, which were a pain when it came to extract the single cells but had most of the time only the BMS broken and the cells still very usable.
Some of you tried to help me with tipps and I found out that I was not the only one here struggeling with theses packs.
Then I tried to use them as a pack as they were and just extended them to 48 Volt, which I think was the second best solutioin.
But now I think I have the best solution:
I used a Pack, where I already stripped of the bus bars and a lot of the black sealing for the first test.
I bought a so called Forstner Bohrer ( didn't find an english description ), normally used to dril joint holes in furniture doors, with 18mm Diameter, cut out the inner centering drill
and drilled on the negativ side of each Cell.
Then I used a plastic pipe with a dowel in the corresponding diameter for the positive pole
and carefully used a hammer to drag the cells out of their cage from the pos side.
Mostly the shrink got lost, but that is ok.
Importand ist, neither the negative nor the positiv pole get hurt this way.
so now I got a lot of mostly perfect cells:
That is my way to go now.
I hope this is also off use for some of you.
P.S. What I forgot to mention: Use a stand drill for being as accurate as possible.
Reagrds
cadric