COOLEAD Battery Case for iPhone 6 / 6s (4.7 inch) Ultra Slim Extended Charger Case with 3500mAh Capacity (Black) The powerful 3500mAh built-in lithium polymer battery can effectively provide 100% additional battery life to your iPhone 6 (4.7 inch) (Does not work for iPhone 6 Plus) Comprehensive bumper design and hard-shell backplate, the battery case protects your iPhone from scratches and other daily tear and wear, yet small and convenient enough to fit easily in your hand or in your pocket. 4 blue LED indicators display the remaining power; red light flashing warns of low battery and needs recharge the power bank. With foldable stand on back function, great and easily for using and viewing your iPhone 6