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Remaking a screwdriver on li - ion

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I ask for advice. There are lithium batteries BPK265-001-01-B from the payment terminal. I would like to put in a screwdriver but the task is how to charge it later. On banks on the side there is a board (it seems to be protection) and I can not find descriptions of what it is. Who will advise what. I would like to use these banks with this board.
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Reply To quote A complaint
If you use these batteries, then the built-in protection must be removed. It will fire. A screwdriver often in peak can take about 40 amperes. Prada is most likely designed for a current of about one.
If you do not bother, as I did, it will turn out:
https://enm.imdmyself.com/index.php?newsid=11244
and a charger for it:
https://enm.imdmyself.com/index.php?newsid=11317
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Reply To quote A complaint
On banks on the side there is a board (it seems to be protection) and I can not find descriptions of what it is.
With a probability of 99.9999%, this is a BMS (Battery Monitoring System). BMS is designed for emergency protection. For use in a screwdriver, you need a BMS board for 3-4 cells and a charge controller (not in the screw, but outside). You can read, for example, here, including comments.

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