The external battery Hoco J100A has a capacity of 20000 mAh, allowing you to power mobile devices multiple times. The model is made of solid plastic in black color, measuring 138x69x27 mm, making it easily portable in bags or pockets. With two USB ports, it allows simultaneous charging of two devices with a maximum output current of up to 2100 mA. To save time, the battery is equipped with a fast charging feature. There is a power level indicator on the casing to monitor remaining capacity. The battery takes 8 hours to charge from a USB source and has protection against overcharging and short circuits. The battery is manufactured in China and includes an instruction manual.