Specification: Colour: Blue Power supply mode: USB Charger Input power: 100-240V_50-60Hz Output voltage: 4.2V- 1000mA Size: 65mm x 65mm x 18mm (2.55in x 2.55 in x 0.7 in) No memory effect Environmentally friendly 100% Brand New Battery Type: Rechargeable Battery(Not AA or AAA battery) Voltage: 3.7V Capacity: 3000mAh Material: Li-ion Power: 11.1W Rechargeable times: Up to 1800 times Compatible with: Battery appliances such as emergency lighting, portable devices, power tools. NOT SUITABLE FOR VAPE. NOTE: Not AA or AAA Battery Package Contents: 1 x Single Slot Charger 2 x Rechargeable Batteries.