DFRobot CR123A Li-ion Battery Holder for micro: Maqueen 0.4 A Toys Charger  (Black)

Power your BBC micro:bit and micro: Maqueen educational robot with this compact, reliable CR123A Li‑ion battery holder. Designed for a secure fit and stable power delivery, it holds a single 3.6V rechargeable CR123A cell and integrates a smart charging circuit with Micro USB interface. Ideal for portable projects, classroom kits and DIY electronics, it offers a simple, safe and long‑lasting power solution for micro:bit applications. Featuring reverse connection and overcurrent protection, this holder helps safeguard your board and battery during everyday use. The built‑in charger supports a 350mA charging current, with an input voltage range of 4.5–5.5V DC (via USB) and a regulated output of 3.5–4.2V DC, perfect for powering Maqueen and other compatible micro:bit projects. Supplied in a compact 56mm x 32mm (2.20" x 1.26") form factor, it delivers over 8 hours of continuous operation for Maqueen, making it ideal for lessons, workshops and mobile robots where dependable runtime is essential.