The BBTank Key Box is a guaranteed 100% authentic innovative stealth battery that was designed with the appearance and function of a luxury car’s key fob, perfect for those who are in the market for a discreet device for use during travel.

A LED light indicator found beneath the power button will shine a solid red color when the device is firing properly. This LED will also rapidly flash when the device is locked/unlocked or when the voltage falls too low, indicating it is time to recharge. When that time comes use the built-in USB charging cable to achieve a full recharge in just around 4 hours. After connecting to the USB charging cable the LED will shine red to show charging begun and after a few hours it will switch to green to indicate a full charge.

The Key Box Battery from BBTank also features an innovative key ring for easy travel, it will support most attachments rated as low as 1.2 ohm and it comes equipped with a long-lasting embedded 350mAh li-ion battery that will provide a constant 3.7V of power.