Brand: Panasonic
Model: NCR18650B
Made in Japan
Life: Up to 1500 charging cycle, with Protected PCB for longer battery life
This Protected Lithium-Ion (Li-ion) batteries have a small electronic circuit integrated into the cell packaging. This circuit protects the battery against common dangers, such as overcharge, over discharge, short circuit/over current, and temperature. Protected batteries are safer to use in your devices. Protected batteries are less like to ignite and cause personal or property damage.
Voltage: Standard 3.7V-4.2V, discharged 2.75V
Internal resistance: 40 milliohms or less
Capacity: 3400mAh
Dimensions: Diameter 18mm, Length 69mm
6 months  Warranty