Overmind said:Although I agree with you from a safety perspective, I don't recycle them if they test fine.
That lower part is insignificant from the general p.o.v.
I won't use them in packs but for many other applications they're perfectly fine.
If you pull hard/sharp-enough it can happen. The 'cans' of 18650 cells are not 'thickmetal' as they seem and if you pull out a really strong spot weld (instead of clipping the nickle off)you can get a holequadrofource said:Hello guys, Im new and i can add this from my experience too. I always seemed to twist them with pliers. It sometimes damaged the wrap but from a few 100 harvested cells i've never had a leaking cell happen.
im lucky it never happened to me yetOffGridInTheCity said:If you pull hard/sharp-enough it can happen. The 'cans' of 18650 cells are not 'thickmetal' as they seem and if you pull out a really strong spot weld (instead of clipping the nickle off)you can get a holequadrofource said:Hello guys, Im new and i can add this from my experience too. I always seemed to twist them with pliers. It sometimes damaged the wrap but from a few 100 harvested cells i've never had a leaking cell happen.
OffGridInTheCity said:If you pull hard/sharp-enough it can happen. The 'cans' of 18650 cells are not 'thickmetal' as they seem and if you pull out a really strong spot weld (instead of clipping the nickle off)you can get a holequadrofource said:Hello guys, Im new and i can add this from my experience too. I always seemed to twist them with pliers. It sometimes damaged the wrap but from a few 100 harvested cells i've never had a leaking cell happen.
cyberblob said:OffGridInTheCity said:If you pull hard/sharp-enough it can happen. The 'cans' of 18650 cells are not 'thickmetal' as they seem and if you pull out a really strong spot weld (instead of clipping the nickle off)you can get a holequadrofource said:Hello guys, Im new and i can add this from my experience too. I always seemed to twist them with pliers. It sometimes damaged the wrap but from a few 100 harvested cells i've never had a leaking cell happen.
dropping bits of tabbing through the vents can cause a welded short you cannot remove.
if its a good cell with enough charge this can mean an "oh shit" event.
when i am cleaning cells i use magnetized flush cutters.
the crumbs stick to them and i can clear them off.
never had any short a cell.
I just have to lay off the Wheaties then.
I have started to try twisting them off. It seems to be more of a problem with dewalt battery packs with thick metal tabs.. All the ones that have had holes are from those packs..
Wish there was an easier way to disassemble them with out causing lots of sparks. Gets me every time at least once.
Metal drops below the protective ring then zap sparks.. Makes me jump every time..
This happened to me only once on an old Sanyo cell in my experience harvesting 100+ laptop batteries.cyberblob said:
Brilliant! Keep the smiling ones and toss the restslipkn67 said: