Top 5 Best battery iphone for sale 2016

1. Anker Astro E1 5200mAh Candy bar-Sized Ultra Compact Portable Charger (External Battery Power Bank) with High-Speed Charging PowerIQ Technology (Black) (Click Link to Check Price on Amazon)
Editor's Rating : 9.3 out of 10
The Anker Advantage: Join the 10 million+ powered by our leading technology.Exclusive PowerIQ Technology: Detects your device to deliver its fastest possible charge speed up to 2 amps (four times faster than a computer USB port). Does not support Qualcomm Quick Charge

2. 3400mAH Mini Power Bank - iXCC [Premium Aluminum] Compact Lipstick-Sized Portable Charger External Battery Pack Powerbank for Smartphones - Black (Click Link to Check Price on Amazon)
Editor's Rating : 9.8 out of 10
3400mAh external battery powerbank with 1-Feet Micro USB Cable for Samsung Galaxy S7 / S7 Edge / Note, LG, Google Nexus or other tablet and smartphone.Smart charge - Single USB charging port with built-in ChargeWise (TM) technology detects your devices and delivers the most efficient charge.

3. iPhone 6 / 6S Battery Case, Trianium Atomic Pro iPhone Portable Charger iPhone 6 / iPhone 6S (4.7 inch) Charging Case - 3200mAh Extended Battery Pack Juice Bank Cover[MFI Apple Certified] - [Black] (Click Link to Check Price on Amazon)
Editor's Rating : 9.4 out of 10
The powerful 3200mAh Li-polymer rechargeableAtomic Pro 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.360° comprehensive bumper design and hard-shell backplate, the Trianium 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.

4. YHhao for iPhone 6 Charger Case, 3500mAh Portable Battery Bank with Kick Stand for 4.7" iPhone 6/6S, Slim Fit Slider Design + Full Body Protection + LED Battery Indicator (no cable included) (Black) (Click Link to Check Price on Amazon)
Editor's Rating : 9.8 out of 10
3500mAh External Battery Backup Charger Case Pack Power Bank for iPhone 6 4.7 inchesTurn on the battery case to start charging your phone. Separately charge the battery case or use the battery charge your phone to avoid overheating issues.

5. Portable Charger - [Apple Certified] uNu Superpak 5000mAh 2.1A External Battery Pack For iPhone 6 6S, 6 Plus,5S,5, Galaxy S6 Edge,Note 5 4 with 2-in-1 Lightning Cable 8Pin and MicroUSB Cable - Black (Click Link to Check Price on Amazon)
Editor's Rating : 9.5 out of 10
Join the UNU family, an innovative, award-winning brand from silicon-valley, featured in New York Times, Mashable and CNET. All UNU products are backed by hassle-free 1-year warranty.POWERFUL CHARGING OUTPUT - featuring 2.1A "uSmart" technology, the Superpak portable charger is compatible and optimized to provide maximum charging speeds for any phone, tablet and USB powered device.