8 Pieces 18650 3000 Mah 3.7v Li-ion Lithium Ion Rechargeable Battery Household Batteries with 2 Slot LED Indication Charger , Red Color Battery High quality and durable, No memory effect; Provides excellent continuous power sources to your device; 2 slot LED indication AC110v-240v 50-60Hz input (international charger, can be used worldwide);