This power bank is made of aluminum alloy and supports super-fast charging for almost any type of smart device. Class A quality 18650 battery core with short circuit protection. It has a battery capacity of 4000 mAh,5000 mAh,6000 mAh, 7000 mAh, 8000 mAh, and 10000 mAh for you to choose from. It allows you to charge any phone or tablet at full speed so your devices never run out of power.
