18650 lion batteries from Laptop pack

[Synergic]

HI!
I have disassembled the battery pack of my old laptop and now i have 8 18650 1800mAh cells.

They are unprotected,so...Where can i get any pcb to protect them?

Thanks.

 

[Fallingwater]

It's not a matter of just slapping a PCB to the end of the cell. Protected cells have a very thin metal strip that goes from the positive terminal to the circuit, and that needs to be insulated from the main body.
There are PCBs you can use to protect a bare cell, but they connect to both terminals and aren't any good if you want to use the cell in a flashlight.

If you don't want to use it in a flashlight, you can find the PCBs on batteryspace and sparkfun, if memory serves me right.

 

[LumenHound]

Batteryspace.com is one place that sells them.
All-Battery.com is another.

 

[Synergic]

Thanks ;-)