This is a 9V battery pack with on/off switch and a pre-attached 5.5mm/2.1mm center-positive barrel plug. Use this to battery-power your Arduino (or other electronic projects) - it's ready to go out of the box!

Battery & screw not included.


  • 68mm x 33mm x 21mm ( 2.6in x 1.3in x 0.84in )
  • Lead length: 12cm / 5in
  • Weight: 22.1g
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Brand Adafruit

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