•Type: Li-Ion 18650
•Nominal Capacity: 3300-3400mah
•Nominal Voltage: 3.7V
•Weight: 47g±1g
•Rechargeable Battery: Yes
•Rechargeable Times: Up to 500 times
•Internal resistance: ≤38mΩ
•Limited Charge Voltage: 4.2v
•Working Voltage: 2.75-4.2V
•Size: 65.5mm x 18.5mm (Diameter)