Asus zen power’s-packed 10,050mAh battery is perfect for fully charging any smart device. It weights just 215g and is no bigger than a credit card. It offers high-speed, high-efficiency charging with up to 2.4A output. It quickly puts life back into all your devices. The exclusive asus power safe technology monitors temperature, controls both input and output voltages and guards against short circuits to provide you with maximum safety while charging.