How to Charge a Nikon D90 USB Battery

Written by theon weber
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How to Charge a Nikon D90 USB Battery
The Nikon D90's battery must be charged outside the camera. (camera battery image by Wolszczak from

While many electronics that can connect to a computer's USB port can also draw power from that port, the Nikon D90's battery uses a higher voltage than a USB connection can provide. It's thus necessary to charge the D90 using separate charging equipment.

Skill level:

Things you need

  • EN-EL3e battery charger (included with Nikon D90s, or purchase from link in "Resources" section)

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  1. 1

    Turn off the camera. Open the battery chamber cover on the bottom of the camera by pushing in the tab and lifting the cover. Slide out the battery.

  2. 2

    Plug the battery charger into a wall socket.

  3. 3

    Slide the battery into the charger and watch for the "CHARGE" light to illuminate and start blinking. A full charge will take about 2 1/4 hours.

  4. 4

    Remove the battery when the "CHARGE" light has stopped blinking. Slide the battery back into the camera's battery chamber, with the curved side facing outward, and close the cover.

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