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Why would I need to use a power bank?

For best charging performance with advanced devices like smartphones or some tablets, we recommend using our PowerStream™ power bank, because some devices do not allow the power level to vary once you start charging.

Also...

  • Most advanced smartphones have software that stops the phone from charging when input power is reduced, such as when a cloud passes by. 
  • Charging the backup companion power bank battery during the day will allow you to charge your device at night, so you can use your phone freely during the day.