ALLNET 4duino 3x AAA Battery Holder with On/Off Switch and 2-Pin JST Connector (Ref. 727)

This ALLNET 4duino battery holder stands out by integrating a slide on/off switch directly into the holder, eliminating the need for external power switches in your DIY electronics projects. It securely holds three AAA batteries and provides a convenient 2-pin JST connector for easy connection to microcontrollers like Arduino or ESP32.

Highlights

• Integrated slide on/off switch for power control
• Holds 3 AAA batteries (not included)
• 2-pin JST connector for simple plug-in connection
• Compact black ABS plastic housing
• Approx. 15 cm cable length with 24 AWG wires

In daily use

Ideal for portable microcontroller projects, the holder provides a nominal 4.5V DC output when used with three 1.5V AAA alkaline batteries. The switch allows you to easily turn your project on and off without unplugging the connector, saving battery life and adding convenience.

Full specifications

• Battery type: AAA
• Number of batteries: 3
• Nominal output voltage: 4.5V DC (with 3x 1.5V AAA alkaline)
• Connector: 2-pin JST
• Switch: slide on/off
• Cable length: approx. 15 cm
• Wire gauge: 24 AWG
• Housing material: ABS plastic
• Colour: black
• Application: DIY electronics, microcontrollers (e.g., Arduino, ESP32), small portable devices

Final note

Part of the ALLNET 4duino series, this holder is a practical power solution for your prototyping needs.