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4xAA Battery Holder with DC connector
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$3.60
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A flat 4×AA battery holder with a 2.1mm DC barrel jack connector, providing an easy way to power Arduino boards and other projects that accept a DC barrel pl...
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A flat 4×AA battery holder with a 2.1mm DC barrel jack connector, providing an easy way to power Arduino boards and other projects that accept a DC barrel plug. With four alkaline AA batteries installed, it delivers approximately 6V — within the recommended input voltage range for the Arduino Uno's DC jack.
Specifications
- Battery Type – AA (LR6)
- Cell Count – 4
- Configuration – Flat (1×4)
- Connector – 2.1 mm DC barrel jack (centre-positive)
- Nominal Output – 6 V (alkaline) / 4.8 V (NiMH)
Ideal For
- Powering Arduino Uno and compatible boards via the DC jack
- Portable and battery-powered electronics projects
- Prototyping without a mains power supply
Package Contents
- 1× 4-Cell AA Battery Holder with 2.1 mm DC Barrel Jack
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- DC barrel jack
- A round power connector commonly used for low-voltage DC power supplies, often described by its outer and inner diameters such as 5.5 x 2.1 mm. Matching the barrel size and polarity is important so the plug physically fits and powers the device correctly.
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