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Specifications

MuTong External Battery For Iphone 4
 Specification
     
  • Items: MuTong External Battery For Iphone 4
  • Battery Type:  Li-polymer
  • Capacity:  1500mAh
  • Output Voltage : DC 5.0+/-0.2V
  • Output Current:  500mah
  • Charge time: About 3 hours
  • Charge methods: PC USB port or AC adapter
  • Cycle Life:  Over 600 times
  • Product material: ABS+PC
  • Product dimensions: (L)127 x (W) 62 x (H) 17.6mm
  • Product weight: 65g
  • Indicator:  LED to display the capacity and charging status
  • Protect function:  short circuit, over-current, over-charging and over-discharging
  • Product colors: White
  • Working Temperature:  -10 to + 55 centigrade
  • Standby time: 298 hours
  • Talk time: Up to 7h 
  • Web browsing: 5 hours wi-fi: 9 hours
  • Audio play: 48 hours
  • Video play: 9 hours

Features
1.Key features: power control buttons for the touch of a button, but also the battery indicator button.
2.Turned on: click the touch of a button press start, according to the current battery level display the corresponding LED indicator.
3.Discharge status: after 30 seconds, insert the IPHONE 4 to its power supply. Supply process, you can view the power button.
4.Low-voltage shutdown: When the battery voltage output to voltage 3.1V ± 0.1, the light is off, and then automatically shut down to  stop the output.
5.Display:
Charging display status: The mobile power charging, LED1-LED4 in cycles lit, fully charged 4 LED lights are illuminated.
6.Discharge display status: discharge, can view the power button. The current battery voltage corresponding LED indicator light turns   off after 5 seconds.
7.Level Indicator Status: Click touch of a button, according to the battery voltage, the corresponding LED lights turn off after 5 seconds.
8.Charging function: USB MINI USB charge transfer, but also to data synchronization.                                                 
9.Overcharge Protection: The battery voltage is 4.2 ± 0.05V, the circuit automatic protection, stop charging the battery circuitry.
10.Over-discharge protection: battery voltage falls below 2.4V ± 0.1V, the battery is automatically protected, closed for discharge.
11.Short circuit protection: normal operation, the output is shorted, the battery in the automatic protection of the state there is no  output, wait a moment to re-output.

Product Size

The thickness of the apple iphone4 is 9.5mm,and the thickness of MuTong iphone4 prepare the battery pack can be so thin as it, MuTong iphone4 prepare the battery pack is only 15mm, 5.5mm thicker than ipnone4

 
Product Function and application

MuTong brand mobile phone battery can let ordinary iphone4 extend battery life become double, The ergonomically designed shell provides the full protection of your phone, compact ergonomic design, shock-proof protection cover combined with an external battery, tailored specifically for the iphone, MuTong brand battery shell adapted the U.S. DuPont rubber protective coating which is not only wear-resistant but also increases the friction coefficient , which greatly reduces the risk of slipping from the hands .

MuTong brand mobile phone battery owns patent 2-stage fully surrounded design which offers  fully-covered area protection.

The battery perfect fit Iphone4 body and can be seamlessly embedded into phone body,  LED indicator lights that lies in the caudal of the battery, showing the battery status clearly