A 4×AA battery holder with a 20cm (8″) power cable terminating in a centre-positive 2.1mm DC barrel jack. Provides a portable power source 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. The DC plug is 5.5mm outer diameter, 2.1mm inner diameter with centre-positive polarity.

Key Features

• DC2.1 Barrel Jack Output – Standard 5.5mm OD / 2.1mm ID, centre-positive
• 20cm Cable Length – Flexible lead for easy connection to your project
• 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 – ~20cm (8″)

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 2.1mm DC plug