One of the cheapest and most trusted brand of power bank out there is now back on sale! I have one of these and I have to say it's better than most of the power bank out on the market. These are currently selling in NZ for $53.76 - cheapest price in NZ. So save ~$30 (over 50% off).
The only downside to this deal is, it takes roughly 3 to 4 weeks for goods to arrive.
Description:
Battery capacity: 3.6V 10400mAh
Battery type: 18650 battery
Interface: Micro USB(input), USB(output)
Input: DC 5V, 2.0A
Output: DC 5.1V, 2.1A
Charging time: about 5.5 hours with 5V/2A charger
Charge temperature: 0℃-45℃
Discharge temperature: -20℃~+60℃
Weight: 250g
Color: Silver
Size: 90.5 x 77 x 21.6mm
Compatible with iPhone, HTC, Samsung, smartphone and Tablet PC(the power bank will adjust the output power automatically to meet different devices' needs)
Human engineering round conner design, more comfortable to handle.
With anodic oxidation technology, the color will keep fresh.
Function: Short-circuit Protection, Input Overvoltage Protection, Output Over-Current Protection, Output Overvoltage Protection, Over-charge Protection.
Four LEDs to show battery level.
Package include:
1 x Power Bank
1 x USB Cable
The 16000mAh is $33.12 shipped and has dual full size USB(max 5.1V/3.6A output while dual USB is working so not enough for 2x2A devices but enough for a modern smartphone and something else).
However the extra capacity means it's a larger unit so check the measurements/images provided for comparison.
http://www.banggood.com/Original-Xiaomi-16000mAh-Universal-B…