This product uses the best Lithium-ion batteries to ensure long durability and stable charging. The charger comes with a 10 000 mAh Lithium-ion battery which gives you about two extra charges for your Smartphone. It is built with an advanced charging circuit to secure high temperature control short-circuit protection and fast charging. Specification High quality power banks with exclusive design Lithium-Polymer premium rechargeable batteries 2.1A output with fast and automatic detection Safe protection against short-circuit and high temperature 4-LED battery indicator Micro-USB to USB cable included Compact size- 93 x 63 x 19 mm Compatible with all Smartphones and Tablets Compatible with iPhone/iPad Product Code: ST-MC10-DARTH