SR4000 is the Universal USB battery pack for all digital devices charged by USB port, such as iPodTM, iPhoneTM,, mobile phones, PDA, MP3/MP4 players, PSP, NDS, GPS devices, PMP, DC/DV, etc.We can provide OEM and ODM service for you! 

Main Features:

Capacity: It adopts a high-performance lithium polymer battery at 4000 mah. The capacity of SR4000 is about 4 or 5 times of the phone battery, 8 times of the MP3 and MP4 players’ battery and 2 times of the digital camera battery. The times of charging are all depending on the capacity of the battery is going to be charged.

Intelligent: with advanced SCM technology, power management, integrated circuit control technology, it can automatically charge the battery for up points.

Energy saving and Green: You can reduce the purchase of mobile phones batteries, digital products batteries and chargers, energy-saving and environmental protection.

Technic Parameter Capacity: 4000mAh/14.8wh Output Voltage: 8.4V; 5.5V Input: 5V/1A Output Current: 650mAh Battery type: Li-polymer Dimension: 107mm*57mm*16mm Weight: 140g Life cycle: ≥500 times Charge Time: 5hours