Original battery 18650 Li-ion Samsung ICR18650-29E (unprotected).
Recommended for mGuide WIN-1 wireless intercom system.
The battery does not have electronic protection against over-charge and deep discharge.
NOTE!
Lithium batteries should be used together with PCB protection systems or BMS battery management systems, which ensure safety of use – they protect the cells against overcharging, overheating, excessive discharge and short-circuit, and have a positive effect on their service life.