Button Cell Battery Holder (with batteries - 4.5v)

Button Cell Battery Holder (4.5V, LR44 x3) provides a compact power solution for miniature electronics, wearable circuits, and lightweight prototypes. A cylindrical white enclosure with a clean matte finish forms a tidy power capsule suitable for embedded builds where space and aesthetics matter. The compact battery carrier integrates three LR44 coin cells to deliver approximately 4.5V output, supporting low‑power development boards and portable modules. A lightweight plastic structure keeps projects minimal while maintaining reliable electrical contact, making the small battery enclosure a practical energy source for wearable microcontroller designs and compact DIY electronics.

Figure: Use this small battery holder to drive our wearable MCU--Cheapduino

Compact Capsule Form Factor for Embedded Projects

A slim cylindrical housing measuring only 37 × 14 × 17mm enables efficient integration into small electronic assemblies. The miniature battery enclosure suits wearable electronics, sensor nodes, and compact controller builds where traditional battery packs consume excessive space. A clean white body and matte surface contribute to a neat aesthetic while maintaining structural simplicity. This minimal power capsule supports tidy wiring and unobtrusive installation within DIY gadgets, interactive wearables, and lightweight robotic accessories.

Ready‑to‑Use Power with Integrated LR44 Cells

The miniature power module ships with three LR44 button batteries pre‑included, providing a combined output of roughly 4.5V suitable for low‑current electronics. Immediate availability of installed cells simplifies rapid prototyping and educational demonstrations without additional battery sourcing. Reliable contact design inside the plastic holder ensures stable output for wearable microcontrollers and small electronic boards. Such a configuration works well for lightweight interactive devices, compact display modules, and portable experimental circuits.

Typical uses include wearable electronics, small MCU development platforms, portable sensor prototypes, and compact DIY gadgets. The lightweight button‑cell power carrier integrates easily into educational builds, creative hardware experiments, and miniature robotics accessories where compact energy storage is essential.