The 18650 4-Cell Battery Holder is built to house four lithium-ion batteries in a compact arrangement. Most holders are configured in series, delivering a higher voltage output suitable for applications that require more power. Constructed from durable plastic with spring-loaded metal contacts, it ensures a secure connection and easy battery replacement. This holder eliminates the need for direct soldering, improving safety and convenience. It is widely used in robotics, portable power packs, DIY electronics, solar projects, and high-power embedded systems. Key Features Holds 4 × 18650 batteries Durable plastic body Spring-loaded metal contacts for firm connection Easy battery insertion and removal Available with wire leads or terminals Suitable for high-voltage applications Technical Specifications Parameter Value Battery Type 18650 Li-ion Number of Cells 4 Configuration Series (common) Output Wire leads / terminals Material Plastic with metal contacts What’s in the Box 1 × 18650 Battery Holder (4 Cell) Ideal For Robotics and automation High-power DIY electronics Portable battery packs Solar and energy storage projects Arduino and embedded systems ��