A compact battery holder for three AA cells with an integrated power cable and DC barrel jack. The series configuration delivers approximately 3.6–4.5V depending on battery chemistry, making it a convenient power source for 3.3V microcontroller projects and portable electronics.

The 200mm power cable terminates in a 2.1mm DC jack (centre-positive polarity), ready to plug directly into Arduino boards and other devices with a standard DC barrel input.

Key Features

• 3× AA Series Configuration – Outputs ~4.5V (alkaline) or ~3.6V (NiMH)
• DC 2.1mm Barrel Jack – Centre-positive polarity, compatible with Arduino and similar boards
• 200mm Power Cable – Provides flexible placement away from your project

Specifications

• Battery Type – 3× AA (not included)
• Output Voltage – ~3.6V (NiMH) to ~4.5V (alkaline)
• Connector – DC barrel jack, 2.1mm ID, centre-positive
• Cable Length – 200mm

Ideal For

• Powering Arduino and 3.3V microcontroller projects
• Portable electronics and sensor nodes
• Replacing LiPo batteries where recharging isn't needed

Package Contents

• 1× 3-Cell AA Battery Holder with DC 2.1mm Plug