18650 Battery Holder 1S Single-Cell Storage Case | Pro Tronix

Product Description

The 18650 1S Battery Holder is a rugged, injection-molded plastic case designed to house a single standard 3.7V Lithium-Ion cylindrical cell. Featuring built-in pin terminals, this compact holder allows developers, hardware technicians, and electronics hobbyists to safely integrate rechargeable lithium power directly into custom circuit boards, breadboards, or prototyping arrays. The heavy-duty internal spring steel clips ensure a firm mechanical grip on the battery, maintaining constant electrical contact and preventing power interruptions caused by vibration. By securing individual cells neatly within a durable, heat-resistant shell, it provides an essential, low-profile power interface for mobile electronic prototypes and field hardware.

Pinout / Layout Connections

The module is designed for straightforward electrical routing through standard wire leads or solid pins:

• Positive Lead / Terminal (Red): Connects directly to the positive (+) button top or flat top end of the 18650 cell, outputting the positive voltage line.

• Negative Lead / Terminal (Black): Connects to the tensioned spring side at the negative (-) flat base of the cell, establishing the common ground.

Applications

• Microcontroller Prototyping: Providing standalone, mobile 3.7V power loops for compact Arduino, ESP32, or Raspberry Pi Pico projects.

• Wireless IoT Nodes: Serving as the structural power bay for remote sensor units and outdoor data loggers.

• Robotics & Smart Vehicles: Powering low-current electronics, wireless transceiver modules, and micro servo drivers.

• DIY Portable Devices: Engineering custom handheld testers, emergency LED lights, and compact field equipment.

Technical Specifications