Knowledge Base


How does the technology work?

  • The  batterycase has a slim generator inside that charges your phone when you crank the handle.  The generator connects to the phone through the 8-pin port.

How much power does it make compared to plugging in the wall charger?

  • The  1200mah  internal battery is equivalent to about 70% of a full charge and is similar to being plugged into a regular charger.  The emergency generator makes more power as you crank faster.  If you keep the green light on the back of the case glowing consistently, then you are charging as fast as a wall charger.

Can this case generate power any time of day?

  • Yes.  You can generate power day or night with the emergency generator.

How does this technology compare to solar powered phone cases?

  • This generator technology is much more powerful than solar charging cases.  Solar charging needs a large surface and direct sunlight to generate useful power.  This can be useful for "spot charging" when you are traveling or when other power sources are unavailable.

Instructions for use:

Unfold the crank arm from the back of the case.  Pinch the crank handle knob, and extend it away from the crank arm to gain a better grip.  Hold the phone securely in one hand, and the crank knob between the thumb and pointer finger of the other.  You can crank clockwise or counterclockwise.  Fold the crank arm back into the case when done.

  • Keep the green light on the back of the case lit. 
  • A blinking green light indicates that you are cranking too slowly.

Power conservation tips to help maximize charge results:

  • Activate Low Power Mode in Battery Settings (only in IOS ®9 and above).
  • Turn off Bluetooth, Wifi, and Personal Hotspot.
  • If cellular data is not needed, activate Airplane Mode. 
  • Close all App’s you may have running in the background. 
  • While crank charging your phone, press the power button so that the screen turns off.
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