CR123A Li-ion Battery Holder for micro: Maqueen

CR123A Li-ion Battery Holder for micro:bit educational robots provides a compact and rechargeable power solution designed specifically for the micro:bit-based Maqueen robot platform. This compact power expansion module holds a single CR123A 3.6V lithium rechargeable battery and delivers stable energy for robotics projects, enabling more than eight hours of continuous operation for classroom or competition activities. Compared with disposable batteries, this rechargeable battery mount significantly reduces battery waste and operating costs, making the robotics power system more sustainable and convenient for educational environments and long‑term experimentation.

Integrated Charging Circuit with MicroUSB Interface

This rechargeable battery carrier integrates a built‑in lithium battery charging circuit together with a MicroUSB interface, eliminating the need for an external charger. Direct USB charging simplifies power management during robotics development or classroom deployment. The integrated design streamlines the power system for Maqueen robot builds, allowing quick battery charging using common USB power adapters, laptops, or power banks while maintaining compact installation on the robot chassis.

Extended Operating Time for Educational Robotics

The CR123A lithium battery mount supports a 3.6V rechargeable cell capable of delivering more than eight hours of continuous runtime when used with Maqueen educational robots. Long operating duration supports extended STEM workshops, classroom experiments, and robotics competitions without frequent battery replacement. Rechargeable energy storage also reduces the need for disposable batteries, potentially replacing hundreds of single‑use cells during a year of robotics learning activities.

Built‑in Safety Protection Design

Safety circuitry improves reliability for lithium battery operation in educational environments. The embedded protection system includes reverse connection protection and over‑current protection to help prevent damage caused by incorrect wiring or abnormal load conditions. This protective architecture enhances electrical safety when integrating the power module into robotics platforms, student laboratory setups, and experimental microcontroller projects.

Suitable for micro:bit robot expansion and educational robotics projects, this rechargeable lithium battery holder serves as a practical power module for Maqueen robot builds, classroom STEM experimentation, and compact mobile robotics systems requiring lightweight rechargeable energy storage.

• Designed for micro:bit Maqueen educational robot
• Supports CR123A 3.6V lithium rechargeable battery
• Integrated charging circuit with MicroUSB interface
• Over‑current protection for improved electrical safety
• Reverse connection protection design
• Provides more than 8 hours of continuous runtime for Maqueen
• Rechargeable power solution reducing disposable battery waste

• Charging Voltage: 4.5-5.5V DC
• Charging Interface: USB
• Output Voltage: 3.5~4.2V DC
• Reverse Connection Protection
• Over Current Protection
• Charging Current: 350mA
• Dimension: 56×32mm/2.20”×1.26”

• CR123A Li-ion Battery Holder(V1.0)      x1
• Screw                         x4
• Copper Column                x4
• Connecting wire               x1
• Double-side Adhesive Tape     x1

• micro:bit Maqueen robot power supply
• Educational robotics projects
• STEM classroom robotics kits
• Rechargeable power module for small robots
• Portable embedded electronics projects