Color Purplish Red Model 18650P-3.7-2600G Quantity 1 Piece Material Li-ion Cell Type Lithium Ion Battery Model 18650 Head Type Button Top Mark Capacity 2600 mAh Actual Capacity 2600 mAh Voltage 3.7 V Rechargeable Yes Rechargeable Times Others1000 Built-in Protected Circuit Yes Over Voltage Protection Yes Short-Circuit Protection Yes Over-Charging Protection Yes Over-Discharging Protection Yes Mercury Free Yes Other Features Safe: Anode Protection; Use of protection current;3A; Real capacity can be test:2600mAh; The minimum height:68.5; Packing List 4 x 18650 2600mAh batteries with protection 1 x Battery Case