Etekcity Wingman 8000P -8000mAh 5V 3.1A Slim, Portable Power Bank/External Backup Battery Pack with Dual USB ports $18.48 Fs Prime

Amazon.com: Etekcity Wingman 8000P -8000mAh 5V 3.1A Slim, Portable Power Bank/External Backup Battery Pack with Dual USB ports for smartphones, tablets, etc from Apple, Samsung, Blackberry, Droid, etc & almost any other rechargeable device: Cell Phon

Rated 4.4 out of 5 stars from 63 reviews on Amazon

for smartphones, tablets, etc from Apple, Samsung, Blackberry, Droid, etc & almost any other rechargeable device

With capacity of 8000mAh; Dual USB outputs: 5V 3.1A. High-quality Li-polymer battery cells for reliable long-term performance
Automatic shutoff function to prevent battery drainage and preserve charge & overload,over-discharge, and leakage protection
Slim & Portable size for maximum convenience - fits in a pocket or purse
LEDs indicate how much capacity is left, letting you know when the power bank needs to be recharged.
Quick-charge equipped: charges electronic devices faster than comparable power banks

Extra power when you need it
Want to have an extra power source available in case your phone or other electronic device's battery needs a recharge? This EtekcityŽ power bank features a capacity of 8000mAh, you can restore most smartphones to full capacity several times.

Reliable power
Built to meet high specifications,includes overload,over-discharge,leakage protection,short-circuit protection for reliable and safe performance.When the power bank needs to be recharged, LEDs indicate how much capacity is left.

Specifications
Battery: Li-polymer, 8000 mAh
Input power: DC 5V 1A
Output power: DC 5V 1A + 2.1A (3.1A total)
Dimensions: 125 x 72 x 15mm

Package includes
1x EtekcityŽ Wingman 8000P
1x USB spring cable
1x 6 Connectors compatible with most phones
1x User's manual