1) No memory effect 
2) Environmentally friendly 
3) Battery Type: 18650 Rechargeable Battery 
4) Voltage: 3.7v 
5) Capacity: 3000mAh 
6) Material: Li-ion Battery 
7) Rechargeable times: Up to 1000 times 
8) Compatible with: 
  Battery appliances such as emergency lighting, portable devices, power tools 
9) Size: 7cm x 2cm(Diameter)