Description

18650 Battery Holder 2-Slot – Product Description

When working with lithium-ion batteries, having a secure and reliable holder is just as important as having the right charger. The 18650 Battery Holder 2-Slot is designed to safely house and connect two 18650 lithium-ion rechargeable batteries. Built from high-quality plastic and fitted with durable spring contacts, this holder ensures a solid connection and stable power supply for your electronic projects.

Whether you are building DIY power banks, robotics, Arduino or Raspberry Pi projects, or experimenting with battery-powered devices, this 2-slot holder provides the perfect foundation for powering your circuits.

What Is an 18650 Battery Holder?

An 18650 battery holder is a casing that securely holds cylindrical 18650 lithium-ion cells in place while providing electrical connections through metal terminals. Instead of soldering directly to the battery (which can be dangerous), a holder allows you to insert and remove cells easily, making your projects modular and safer.

The 2-slot version can hold two 18650 cells side by side, allowing you to connect them in series or parallel depending on your project’s requirements.

Key Features of the 18650 Battery Holder 2-Slot

• 🔋 Two-Slot Design – Holds 2 × 18650 rechargeable lithium-ion cells.

• ⚡ Flexible Configuration – Can be wired in series (7.4V) or parallel (3.7V with double capacity).

• 🔒 High-Quality Materials – Durable ABS plastic body with nickel-plated spring steel contacts.

• 🔌 Easy Integration – Solder lugs or wire leads for quick connections.

• 🔧 Compact Size – Fits neatly into DIY projects without taking too much space.

• ♻️ Reusable and Safe – Allows easy battery replacement without soldering directly to cells.

Why Choose the 18650 Battery Holder 2-Slot?

Lithium batteries are powerful but delicate. Directly soldering wires to them can cause overheating or permanent damage. The 2-slot battery holder solves this problem by offering a secure and reusable way to connect cells. It protects the batteries, keeps them firmly in place, and ensures a stable connection for long-term use.

Compared to cheap, flimsy holders, this model uses strong plastic and reliable metal contacts that resist wear, ensuring your batteries stay safe and your circuits run smoothly.

Applications of the 18650 Battery Holder 2-Slot

This battery holder is highly versatile and can be used in many electronics projects, including:

1. Arduino and Raspberry Pi Projects – Power microcontrollers and small devices.

2. Robotics – Supply energy to motors, servos, and sensors.

3. DIY Power Banks – Combine with a charging module for portable energy solutions.

4. LED Lighting – Ideal for powering strips, torches, or custom light fixtures.

5. Prototyping and Testing – Quickly swap batteries in and out during circuit development.

6. STEM Education – Safe and easy for students learning about batteries and circuits.

Technical Specifications

• Model: 18650 Battery Holder (2-Slot)

• Battery Type: 18650 Lithium-Ion Cells (3.7V nominal, 4.2V full charge)

• Slots: 2 (side by side)

• Material: ABS Plastic

• Contacts: Spring steel with nickel plating

• Output Configuration: Series (7.4V) or Parallel (3.7V, doubled capacity) – depending on wiring

• Dimensions: Compact design (varies slightly by manufacturer)

• Mounting: Through-hole or free-standing use

Benefits for Makers and Hobbyists

The 18650 Battery Holder 2-Slot is especially useful for makers and hobbyists who need a quick, reliable power solution. By allowing you to easily replace or swap out batteries, it saves time during prototyping and testing. Its flexibility (series or parallel wiring) gives you control over voltage and capacity, making it suitable for a wide range of projects.

Educators and students also benefit from this design because it simplifies hands-on experiments without the risks of soldering directly to batteries.

Safety Considerations

Lithium-ion batteries are powerful energy sources and should be handled with care. The 2-slot 18650 holder provides an added layer of safety by keeping cells separated and secure. Always use high-quality 18650 batteries with built-in protection circuits when possible. Ensure correct polarity when inserting cells to avoid damage to your project or the holder itself.

Why Add It to Your Toolkit?

If you regularly work with 18650 batteries, the 18650 Battery Holder 2-Slot is an essential accessory. It not only makes your projects more modular and professional but also improves safety and convenience. From powering robotics to creating custom battery packs, this holder gives you the flexibility to build, test, and experiment with ease.

Conclusion

The 18650 Battery Holder 2-Slot is a simple yet essential component for anyone working with lithium-ion batteries. With its durable design, secure spring contacts, and versatile wiring options, it is perfect for Arduino projects, robotics, LED systems, and DIY power banks.

Instead of risking damage by soldering directly to cells, this holder keeps your batteries safe, replaceable, and ready for action. Affordable, reliable, and highly useful, it is a must-have for students, hobbyists, and professionals working with rechargeable 18650 batteries.

Data Sheet