With more and more mobile devices that include USB charging options, it's a good idea to have a power backup via USB. Brando is offering a USB Power Backup product and here is the info:

Features:

Rechargeable Lithium Ion Battery
Standard 5V-USB DC Output
On/Off Switch
Green LED Indicator Switch
Built-in Short Circle, Over Discharge
Over Load and Over Charge Protection
Charge it by direct plug or USB Cable
Charging Time: Approx. 3 Hours
Size: 70x50x12mm
Weight: 71g
Specification:

Capacity: 2400mAh
Input: DC-5V
Output: Standard 5V-USB
Working Temperature: 0~45 degree
Colours:

Black
White
Package Contents:

USB Power Backup (2400mAh)
USB Charging Cable

Price: $20 US

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