2-Cell 18650 Battery Holder with Wire Leads – Dual Slot 3.7V / 7.4V Li-ion Case for Arduino & Robotics

Overview

The 2-Slot 18650 Battery Holder is designed to hold two standard 18650 Lithium-Ion cells. Constructed from impact-resistant ABS plastic, it features heavy-duty spring contacts that ensure a consistent electrical connection even in high-vibration environments like mobile robots or RC cars. The holder comes with pre-soldered black and red wire leads, making it “plug-and-play” for your breadboard or custom PCB projects.

Key Features 

• Series Connection: Pre-wired to connect two cells in series ($3.7V + 3.7V = 7.4V$), providing the ideal voltage for most microcontroller power regulators.

• Tough Construction: Made from high-quality, heat-resistant ABS plastic that won’t warp during soldering.

• Easy Mounting: Features pre-drilled screw holes in the base for easy attachment to robot chassis or project boxes.

• Secure Fit: High-tension springs prevent batteries from popping out during movement.

Technical Specifications 

Popular Use Cases 

• Robotics: Powering L298N or L293D motor drivers.

• IoT Nodes: Providing long-term power for ESP32 or ESP8266 outdoor sensors.

• Emergency Lighting: Creating custom LED lanterns and backup lights.

• Portable Audio: Powering the PAM8403 amplifier setups.