Article ID : 00029818 / Last Modified : 03/29/2019

A battery symbol with an exclamation point is displayed in the center of the screen.

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The battery symbol with an exclamation point is an indication that the battery power of the Reader™ is low and needs to be charged. The battery can be charged by connecting the Reader to AC power via either the AC Adapter or computer USB connection.


  • The lightning bolt symbol that appears next to the battery icon on the display of the Reader™ is an indication that the Reader is connected to AC power and is charging the battery properly. If the lightning bolt symbol is not present, double check the AC Adapter to ensure that the Reader is properly connected.

    Lightning bolt symbol

  • The lightning bolt symbol will not be displayed when charging via a USB connection.
  • When charging the battery via the AC Adapter or USB connection, allow the Reader to charge until the battery charge indicator light (located above the power switch) goes off. The battery icon on the display of the Reader will always show full when connected to AC power even when the battery is not fully charged.
  • Due to the nature of the E Ink electronic display technology, the LCD can retain an image without having power. Turning the page is the only time power is consumed. If the Reader's power is drained, the LCD will retain the last image that was displayed, thus making it appear like the Reader is frozen and in some instances it will not have enough power to perform other operations such as turning on or off.