No matter which smartphone you have whether its an iPhone, a Sony, an HTC or even Huawei, the fact is that your  phone battery will die before the end of the day especially with the introduction of the 4G service. How about an Amazon rated power bank?

Introducing Amazon's highly rated Power bank Ravpower 6700 mAh with its compact size that fits in the palm of your hand while giving you enough charge to keep your phone powered-up through out the day. It is safe for your phone battery with its iSmart technology that gives your battery the charge it needs exactly to protect it from overcharing.

Key features

- Stylish metallic body in 4 colors (Black , Pink , Silver & Blue ) to fit your style

- Light weight (~ 140 gm only) with a compact size (slightly bigger than a cigarette lighter)

- 2 times faster than most power banks (2A input and 2.4A output)

- Smart charging technology gives your phone the most suitable output (ex. 1A for iPhone and 2A for Note 4)

- Higly rated on Amazon (Amazon's choice in December 2016)

- Comes with a  Protective Bag & a flat Micro-USB cable (please see photos)

- Charging schedule (based on average usage)

• iPhone 6 , iPhone 6s or iPhone 7 around 2 full charges
• iPhone 6 plus, iPhone 6s plus or iPhone 7 plus around 1.25 full charges
• HTC 820 , 816 , 728 , M8 , M9 , 816 around 1.3 full charges
• Sony Z2 , Z3 around 1.2 full charges
• Sony Z5 , XZ around 1.25 full charges
• Huawei P8 , P9 or Nova around 1.2 full charges
• Samsung J7 prime around 1 full charge

Always make sure you buy a Power bank that supports smart charging so that it is safe for your smartphone 's battery.