MENGCORE&reg; New 4 pcs/set 18650 battery 3.7V 4200mAh rechargeable liion battery with 2 Dual 18650 Travel Battery Charger US Plug Wall Home Charger 110-240V for Led flashlight Torch High quality and durable Li-Ion Rechargeable 18650 with IC Protection Provides excellent continuous power sources to your device High energy density, long life battery ,This battery has an extra long life for all your battery powered devices Package included : 4 * 18650 rechargeable battery and 2 * 18650 charger