1x 18650 Rechargeable Battery 3000mAh 3.7V+Charger Battery Features: 100% Brand New Size: 65mm x 18mm No memory effect Environmentally friendly Battery Type: 18650 Rechargeable Battery Voltage: 3.7v Capacity: 4200mAh Material: Li-ion Battery Rechargeable Times: Up to 1800 times Compatible with:Battery appliances such as emergency lighting, portable devices, power tools. Charger Features: Power Plug: US Standard Imput: AC 110-220V 47-63HZ Output Current: DC3.7V 500mah Charging time: 2 to 4 hours Fit For Charge: 18650/16340/14500/10440 ect Li-ion battery.