The PowerCase extends the battery life of your iPhone 4 by doubling its charging capacity. Talk, listen, watch, play and work for longer without adding bulk to your iPhone 4.

Using the supplied micro USB cable you can recharge both the iPhone and PowerCase simultaneously or connect to iTunes. LED indicator lights on the back of the PowerCase lets you know exactly how much juice is left in the tank so you are never left guessing. A single button allows you to operate the PowerCase - just press once to turn it on when you need the extra power, and press it again to turn it off when the iPhone is charged.

The hard protective case has a rounded, slimline design so it adds little to the dimensions of the iPhone. The 1600mAh model will add 67g of weight while the 2200mAh model weighs just 85g. The two piece case ensures it is easy to insert and remove your iPhone whilst still giving you access to all the ports, jacks and buttons.

• To use the PowerCase:
  Open the PowerCase by gently pulling the top section up. Slide in the iPhone 4 and replace the top.
  Press the button for 2 seconds to start charging
  Press the button for 2 seconds to stop charging
  Press the button for 1 second to see the PowerCase charge indicator:
  1 LED: 0-25% 2 LEDs: 25-50% 3LEDs: 50/75% 4LEDs: 75-100%
  

• Not compatible with Verizon iPhone 4
  

Comparison Table
Model PD-126-16 PD126-22
Capacity	1600mAh	2200mAh
Input	DC 5V/500mA	DC 5V/500mA
Output	DC 5V/500mA	DC 5V/500mA
Charging Time	4 hours	6 hours
Standby Time	Up to 220 hours	Up to 300 hours
Talk Time	Up to 5 hours on 3G	Up to 7 hours on 3G
	Up to 12 hours on 2G	Up to 16 hours on 2G
Internet Use	Up to 5 hours on 3G	Up to 7 hours on 3G
	Up to 10 hours on WiFi	Up to 13 hours on Wifi
Audio Time	Up to 30 hours	Up to 40 hours
Video Time	Up to 10 hours	Up to 13 hours
Dimensions	127 x 62 x 18mm	127 x 62 x 20mm
Weight	67g	85g