4× 3.7V 18650 Battery Holder

The 4 × 18650 Battery Holder is a durable battery case designed to securely hold four 18650 Li-ion rechargeable batteries. It provides a reliable power source for Arduino, ESP32, robotics, DIY electronics, portable devices, LED lighting, and battery-powered projects. The holder features high-quality spring contacts for stable electrical connections and easy battery replacement.

Features

• Full Name: 4 × 18650 Li-ion Battery Holder
• Holds four standard 18650 batteries
• Durable ABS plastic construction
• High-quality metal spring contacts
• Easy battery installation and removal
• Lightweight and compact design
• Reliable electrical connection
• Suitable for rechargeable Li-ion batteries

Specifications

Applications

• Arduino projects
• ESP32 projects
• Robotics
• Portable power supplies
• DIY electronics
• LED lighting systems
• RC vehicles
• Battery backup systems
• Educational electronics projects

Advantages

• Secure battery holding
• Easy battery replacement
• Durable construction
• Stable electrical connection
• Lightweight design
• Compatible with standard 18650 cells
• Cost-effective

Size

Package Includes

• 1 × 4 × 18650 Battery Holder

Note: The output voltage depends on the holder’s wiring configuration. A series-connected holder provides 14.8V nominal (16.8V fully charged), while a parallel-connected holder provides 3.7V nominal with increased capacity. Always verify the wiring before connecting it to your circuit and use protected, matched 18650 cells for safe operation.