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This 8×AA battery holder provides a portable power source with a built-in on/off switch and a standard 5.5 mm / 2.1 mm DC barrel plug for easy connection to ...

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This 8×AA battery holder provides a portable power source with a built-in on/off switch and a standard 5.5 mm / 2.1 mm DC barrel plug for easy connection to Arduino boards, LED strips, motors, and other 12V devices. Use alkaline AAs for approximately 12V at 3000–4000 mAh, or rechargeable NiMH cells for 9.6V at around 2000 mAh.

The barrel plug fits standard DC jacks found on Arduino boards and many electronics, while the on/off switch lets you control power without unplugging.

Key Features

  • 8×AA Series Configuration – ~12V (alkaline) or ~9.6V (NiMH)
  • 5.5 mm / 2.1 mm DC Barrel Plug – Fits standard Arduino and electronics DC jacks
  • On/Off Switch – Control power at the source
  • High Capacity – 3000–4000 mAh with alkaline cells

Also Available

Ideal For

  • Portable Arduino projects
  • 12V LED strip lighting
  • Motor and solenoid power
  • Electronics requiring 7V+ input (with onboard voltage regulator)
Note: Batteries not included. Compatible with any AA-sized alkaline or rechargeable batteries.

Package Contents

  • 1× 8×AA Battery Holder with DC barrel plug and on/off switch

Jargon buster

Plain-language definitions for the technical terms used above.

LED
A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
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