Features: It is perfect for flashlight and photo camera. It is universal and so practical. It is the original new one. More practical, better service and multifunctional usage. It is super durable and you can use it for a long time. Easy to install and to operate. Description: It has been through testing standards. Awesome quality and excellent price. It so lightweight which is so portable to be taken. Specification: Condition:new Type:8 pcs with 4 slot charger/16pcs/20 pcs Color:yellow Battery Type: Li-ion Voltage:3.7V Capacity:2800mAh Recharge: up to 1000 cycles Item Size:3*1.2*1.2cm Package Included: 8 pcs Battery with 4 slot charger Or 16pcs Battery without 4 slot charger Or 20 pcs Battery without 4 slot charger Noted: The product showed has different kinds of package quantities. 8 pcs Battery with 4 slot charger/16pcs Battery without 4 slot charger/20 pcs Battery without 4 slot charger packed. Please choose it as you like. Any information uncertain , please contact us, Many thanks. According to different conditions, Battery capacity can be divided into actual capacity, theoretical capacity, also called rated capacity. Battery capacity refers to the battery storage capacity. The unit is ""mAh"", 1Ah = 1000mAh, so there are some differences between rated capacity and actual capacity in Li-ion Battery. It is normal and reasonable