2x ORIGINAL 18650 Li-ion Panasonic NCR18650B battery (unprotected), capacity 3400mAh - one of the most powerful batteries on the market!

The battery sold does not have electronic protection against overcharge and deep discharge.
Lithium batteries in size 18650 with protection are available here.

REMARK!
When using lithium batteries, they should be used together with PCB protection systems or BMS battery management systems, which ensure the safety of their use - protect the cells against overcharging, overheating, excessive discharge and short circuit, as well as have a positive effect on their life.

Remember that by purchasing a cell without protection, you accept the reservation contained in the regulations point 6.7.

Precautions:

- to charge the battery, use high-quality chargers with a charging cut-off at a voltage not higher than 4.2V
- do not allow the battery to discharge below 2.5V
- do not discharge the battery with currents higher than those specified in the specification below
- do not charge the battery with currents higher than those specified in the specification below
- do not short-circuit the battery
- do not move with metal elements (risk of short circuit and burns)
- do not allow the battery to overheat above the temperatures provided by the manufacturer
- do not use batteries with damaged cover / foil
- do not use batteries with damaged or dented housing
- do not allow contact with water and other liquids
- do not solder plates or wires using a regular soldering iron