5 Best iphone 6 battery double to Buy (Review) 2017

1. iPhone 6 Case, Maxboost [DuraSLIM Series] iPhone 6 (4.7-inch) Case Heavy-Duty Dual-Layer Soft Touch Protective Cases Cover, Soft TPU Bumper with Hard Shell Solid Polycarbonate Back Case for iPhone 6 ( (Click Link to Check Price on Amazon)
Editor's Rating : 9.4 out of 10
WORLD’S THINNEST - rugged protective iPhone 6 (4.7 inch) case with advanced 2-layer drop protection design.360° OF PROTECTION - including 4-corner shock-absorbing drop protection, hard-shell backplate, and raised edges for advanced screen protection.

2. iPhone 6 6s Battery Case,Smiphee 2500mAh Portable Charging Case for iPhone 6 6s(4.7 inch) Extended Battery Juice Pack/Lightning Cable Input Mode-(Black) (Click Link to Check Price on Amazon)
Editor's Rating : 9.5 out of 10
THIN AND LIGHTWEIGHT: Smiphee iPhone 6/6s battery case is one of the slimmest charging case, adding only 0.18 inch and 2.22 oz to your iPhone 6/6s, thinner and thinner,feel like feather.EASY TO USE:No excessive bulk, just feel free to use your headphone without audio jack extender.Ligthing cable input,then you can charge your battery case and iPhone 6/6s simultaneously with your existing iPhone lightning cable.

3. iPhone 6/6s Plus Battery Case, ZeroLemon iPhone 6/6s Plus 9000mAh Extended Battery with ZeroShock Double Layer Hybrid Case for iPhone 6/6s Plus + Belt Clip Holster [Apple Certified Connector]-Black (Click Link to Check Price on Amazon)
Editor's Rating : 9 out of 10
365 days zero lemon guarantee warranty with 30 days full refund guarantee longest warranty period in market

4. ZeroLemon Apple MFI Certified 3100mAh Slim Juicer Double Layered Extended Battery Charging Case with Audio Extender and MicroUSB Cable for iPhone 6 - Black (Click Link to Check Price on Amazon)
Editor's Rating : 9.2 out of 10
365 days Zero Lemon Guarantee Warranty with Amazon 30 days Full Refund Guarantee Longest warranty period in market

5. (Upgraded) iPhone 6 Battery Case, Trianium Atomic S iPhone 6s Portable Charger Charging Case for Apple iPhone 6 6s 4.7-Inch ONLY [Black]- 3100mAh Battery Pack Juice Bank Cover [MFI Certified] (Click Link to Check Price on Amazon)
Editor's Rating : 9.4 out of 10
The powerful 3100mAh Li-polymer rechargeable battery can effectively provide 100%+ extra battery life to your iPhone 6/6S, which is equivalent to add 14 + hours talk time or 10+ hours web browsing time. (Upgraded: reinforced bumper/usb port)360° comprehensive bumper design and hard-shell backplate, the Trianium Atomic S Portable Charger protects your iPhone from scratches and other daily wear and tear, yet small and convenient enough to fit easily in your hand or in your pocket.