The 18650 2 Cell Battery Holder is a compact and durable battery holder designed to securely accommodate two standard 18650 lithium-ion rechargeable batteries. It provides a simple and reliable solution for creating removable battery packs used in portable electronic devices, robotics, DIY electronics, IoT systems, LED lighting, battery backup units, and embedded development projects. Its lightweight design and secure battery retention make it ideal for both prototype development and permanent installations.

The holder is manufactured from high-quality ABS plastic and features nickel-plated steel spring contacts that ensure excellent electrical conductivity and firm battery connections. The spring-loaded terminals allow batteries to be installed and removed easily without soldering directly to the battery cells, helping prevent heat damage while making battery replacement quick and convenient.

Most 2-cell battery holders are commonly available in either series (2S) or parallel (2P) configurations. In a series configuration, the holder provides a nominal output voltage of approximately 7.4V using two 3.7V lithium-ion cells, making it suitable for powering Arduino projects, ESP32 systems, Raspberry Pi applications with voltage regulation, portable instruments, wireless devices, robotics, and other battery-powered electronic systems.

The holder is supplied with pre-attached wire leads for easy integration into electronic circuits and supports both protected and most standard unprotected 18650 lithium-ion batteries. Its robust construction, reusable design, and reliable performance make it an excellent choice for students, hobbyists, engineers, educators, and makers developing rechargeable battery-powered projects.

Key Features

• Designed to hold two standard 18650 lithium-ion rechargeable batteries
• Durable ABS plastic construction
• High-quality nickel-plated spring contacts
• Secure battery retention
• Reliable electrical conductivity
• Easy battery installation and replacement
• Eliminates the need to solder directly to battery cells
• Pre-attached wire leads for quick circuit connection
• Lightweight and compact design
• Suitable for removable battery pack designs
• Available in series or parallel configurations depending on the model
• Compatible with protected and standard 18650 cells
• Ideal for DIY electronics projects
• Suitable for robotics and automation systems
• Suitable for portable electronic devices
• Can be used in solar and backup power applications
• Reusable and easy to maintain
• Long service life
• Ideal for students, hobbyists, makers, and engineers