Electronics > Beginners
How do I remove the contacts from a coin cell?
Legion:
I'm not sure how these contacts are fixed to the coin cell. I want to replace the battery but reuse the contacts since I don't have replacements. They don't want to come off and I'm concerned about the metal fatiguing if I keep fiddling with it.
How do I remove them from the battery?
Image attached.
SeanB:
They are spot welded to the cell. You will either have to buy cells with tabs already welded to the cell or a cell with solder in pins already welded to it, or use a coin cell holder, or go find a local battery repacker and ask them to weld some tabs onto a new cell for you.
Legion:
That's unfortunate. I guess they really never intended for anyone to replace the battery.
firewalker:
Drill the spot welds with a thin drill.
Alexander.
Zero999:
Yes you may be able to remove them with a small drill but how do you plan to attach them to the new battery? You need to spot weld them. Soldering is no an option because it will cause the battery to explode.
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