I’m toying with that idea. Did you put BMS board in with them?I took the 10 nicads out of by ancient Bosch drill and replaced with 3 off 18650 Li-ions and I am just sooo pleased with that!
There are some Chinesium knockoffs that are not very good but look exactly like the real deal. We use safety cases when storing or charging these batteries.Charges all kinds of power tool battery cells and balance charges Li-ion.
Provided the battery hasn't got a block on the PCB that only accepts the same brand of charger.
I've got a fireproof box here for storing and charging lithium ions.There are some Chinesium knockoffs that are not very good but look exactly like the real deal. We use safety cases when storing or charging these batteries.