The 18650 2-Cell Battery Holder is built to house two 18650 lithium-ion batteries in either series or parallel configuration (depending on wiring). It provides a convenient and safe way to power circuits without directly soldering to the batteries. Constructed from durable plastic with spring-loaded metal contacts, the holder ensures a secure connection and easy battery replacement. It is widely used in DIY electronics, robotics, portable power systems, and IoT projects. This holder is ideal when higher voltage (series) or increased capacity (parallel) is required. Key Features Holds 2 × 18650 batteries Durable plastic construction Spring-loaded metal contacts for secure connection Easy installation and removal of batteries Available with wire leads or terminals Suitable for series or parallel configurations Technical Specifications Parameter Value Battery Type 18650 Li-ion Number of Cells 2 Configuration Series (default in most models) Output Wire leads / terminals Material Plastic with metal contacts What’s in the Box 1 × 18650 Battery Holder (2 Cell) Ideal For Battery-powered electronics IoT and embedded systems Robotics and automation Portable power supply projects Arduino and ESP32 applications ��