?100% Brand new! Ideal smart watch battery substitute, let your smart watch rebirth.?High capacity 380mAh lithium battery, with good performance and ultra stable.?Batteries Model: LQ-S1, Material: Lithium polymer, Capacity: 380mAh, Rated Voltage: 3.7V, Charge Voltage: Max. 4.2V, Product Size(L x W x H): About 31x24x5.1mm/1.22x0.94x0.20", Compatible Model: Smart watch DZ09, QW09, W8, A1, V8, X6, Package Included: 1 x Smart Watch Battery?Standard size, fit for smart watch DZ09, QW09, W8, A1, V8, X6, just input and play.?Easy replace and install, no other tools needed.