The name of BBTANK Key Box Battery comes for the car key. It features a foldable design, so you are capable of holding it easily in your palms. The BBTANK Key comes with a 510 thread, so it is compatible with most atomizers of 510 connection. The BBTANK Key Box Battery adopts inbuilt lateral USB cable, so you will charge it anywhere as you like. Parameters
Size: 91 x 35.5 x 21mm Battery Capacity: Built-in 350mAh Working Voltage: 3.7V Charging: Inbuilt Lateral USB Cable Thread: 510 thread Features Built-in 350mAh battery Supports most atomizers with 510 connection Foldable design like a car key Lateral USB cable attached It comes with