iPhone 6 Battery Case [Apple MFi Certified] MiLi Ultra Slim Extended Battery Case for iPhone 6 with 3500mAh Capacity / 150% Extra Battery (Silver) Protective case,back-up battery and power bank 3 in 1:Slim and stylish, serves as a protective case when not charging the iPhone. The powerful 3500mAh Li-polymer rechargeable battery can effectively provide 150% extra battery life to your iPhone 6. A fully protective hard-shell case with the minimum added bulk. The new battery case protects your iPhone 6 from scratches and any other daily wear and tear, while maintaining the slim form factor of your iPhone 6, small and convenient enough to fit easily in your hand or in your pocket. Enough room for earbud hole which is suitable for any other brands earbuds;Hidden cable design makes spring 6 universal for more Apple devices such as ipad mini;Perfect accurate hole design for both earbud slot and camera;Special matt coating on the camera hole,eliminate reflections from using flash. All about ergonomics.7 ways of protection:Temperature,Short circuit,Input voltage,Output,Output voltage,Overcharge & over-discharge and Battery cell