Flextail Zero Power 10,000 mAh Power Bank (Black) Thunderobot Such parameters mean that users Such parameters mean that users can reduce the waiting time and enjoy longer flight sessions adding to the convenience of use 5 W Efficiency mode 5V 1A Voltage boost efficiency 95% Protection rating IPX4 Temperature resistance down to 10°C Housing material forged carbon fiber Frame material glass fiber reinforced aerospace grade nylon Emergency reserve 10% of capacity Automatic charging stop yes Dimensions 122 × 59 the device is lighter than most smartphones and takes up 55% less space than standard power banks in this class