Looking at the page, I also don't see any protection circuitry..

Normally, you'd have a small circuit board that protects the battery
from high current discharge, and from discharge below a certain
voltage.  In this case, the battery was probably designed to be
plugged into a system that provided that protection.

I would urge the OP to read up on these cells, and not to use them
unless he really understands the hazards and has some method for
dealing with them.
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