Backup battery for iphone 4 iphone4S

backup battery for iphone 4 Charging for iPhone 4/4S Back up battery / Emergency charger

AP Power Case

  Back up battery / Emergency charger for iphone4 & 4S

 AP Power Case is specially designed for the functions of charging for iPhone 4/4S.

 

 The User Manual is as the following:

1. Power Button

Press the right below button for 3 seconds, the lights flickers from left to right one time,it indicates AP Power Case begin to charge iPhone 4/4S.  Press this button for 3 seconds again,  the  lights flickers from right to left,it indicates the charging is turned off. Besides.

2. Charging

AP Power Case can be charged by connected with the iPhone USB port .)

1) When charging, if the first indicator light flickers, it indicates that the battery level is lower than 25% of the full battery .When the first indicator light turns from flickering to brighting ,it means that the battery level has reached to 25% of the full battery . When the second indicator light turns from flickering to brighting, it indicates that it has reached to 50% of the full battery; And so on for the third indicator light and the forth one to completed full charging.

2) iPhone 4/4S is also being charged while AP Power Case is being charged by the external charger.

 3. The indication of discharging

Press the power Button,one indicator light indicates that the battery level is 25%;two indicator lights indicates that the bettary level is 50%;And so on, three lights indicate 75%,four lights indicates the AP Power case has full battery level.

4. Type of battery cells

1) Polymer Lithium Ion Battery core,standard voltage:3.7V

2) capacity:1800mAh

3)  output voltage:DC5 V±0.1 V 

4)  output current: ≤700mA(0.7A)

5)  input voltage: DC5 V±0.2 V

6)  input current: ≤500mA(0.5A)

7)  charging interval: 3~5h

8)  working temperature: -10°C~50°C

9)  storage temperature: -20°C~65°C  

Backup battery for iphone 4 iphone4S