Feature:

• Good capacity 20000mAh external backup battery for your Samsung S4 S3 Note2 iPhone 4G,4GS, 5G ,iPod, iPad , MP3, MP4, the new Pad and mobile phones.
• Built-in 20000mAh good capacity rechargeable Li-Polymer battery .
• 20000mAh capability, powerful with long operation time.
• USB output,

Feature:

• Good capacity 20000mAh external backup battery for your Samsung S4 S3 Note2 iPhone 4G,4GS, 5G ,iPod, iPad , MP3, MP4, the new Pad and mobile phones.
• Built-in 20000mAh good capacity rechargeable Li-Polymer battery .
• 20000mAh capability, powerful with long operation time.
• USB output, more convenient.
• good efficiency of power conversion.
• Electricity-saving function.
• With 4 LED power indicator.
• Partable, practical and long cycle life.
• Safe and reliable, perfect for using on travelling and outdoor activities.

Specifications:

• Capacity: 20000mAh
• Input: DC4.8-5.4V 1A (max)
• Output: 5V-1A / 5V-2.1A
• 2 USB output, charge 2 devices simultaneously
• IC Protection for charging / overcharge / short circuit / discharge
• Circle Time: more than 500 Times
• Product size: 135mm X72mm X 22mm
• Weight: 300g