Adafruit
4 x AA Battery Holder with 2.1mm Plug and On/Off Switch
A 4×AA battery holder with a built-in on/off switch and a 13cm (5″) power cable terminating in a centre-positive 2.1mm DC barrel jack. Provides convenient po...
A 4×AA battery holder with a built-in on/off switch and a 13cm (5″) power cable terminating in a centre-positive 2.1mm DC barrel jack. Provides convenient portable power with easy switching for development boards and projects that accept a standard DC barrel jack input.
Delivers approximately 4.8V with NiMH rechargeable batteries or up to 6V with fresh alkaline cells, making it well suited for boards with a 4.5–6.5V DC input range.
Key Features
- On/Off Switch – Built-in slide switch for convenient power control
- DC2.1 Barrel Jack Output – Standard 5.5mm OD / 2.1mm ID, centre-positive
- 13cm Cable Length – Compact lead with DC plug
- 4×AA Capacity – Accepts alkaline or NiMH rechargeable batteries
Specifications
- Battery Type – 4× AA (LR6 / HR6)
- Output Voltage – ~4.8V (NiMH) to ~6V (alkaline)
- Output Connector – DC barrel jack (5.5mm OD, 2.1mm ID, centre-positive)
- Cable Length – ~13cm (5″)
Ideal For
- Arduino, Raspberry Pi, and other boards with DC barrel jack input
- Portable and battery-powered projects
- Prototyping without a mains adapter
Package Contents
- 1× 4×AA Battery Holder with on/off switch and 2.1mm DC plug
Jargon buster
Plain-language definitions for the technical terms used above.
- 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.
Find this product in
Brands
Power & Batteries
Related Tutorials
Free guides on learn.littlebird.com.au
