🔋 18650 Battery Holder 3S for Li-Ion Batteries

The 18650 Battery Holder 3S is a durable plastic battery case designed to hold three 18650 lithium-ion cells in series configuration. When three 3.7V cells are installed, it provides a total nominal output of 11.1V, and 12.6V when fully charged.

This holder is ideal for DIY battery pack projects, robotics, electric devices, and applications requiring higher voltage output.

✅ Key Features

• 🔋 Supports: 3 × 18650 Li-ion batteries

• 🔢 Configuration: 3 Cells in Series (3S)

• ⚡ Nominal Output Voltage: 11.1V

• ⚡ Fully Charged Voltage: 12.6V

• 🔌 Pre-attached Wires: Red (+) and Black (-)

• 🔒 Durable ABS plastic body

• 🔄 Spring-loaded nickel-plated contacts

• 🛠 Easy battery insertion & replacement

• 🧱 Compact and lightweight design

📊 Technical Specifications

🔧 Applications

• 🤖 Robotics & Automation Projects

• 🔋 DIY Lithium Battery Packs

• 🚨 Emergency Lighting Systems

• 🔊 Portable Sound Systems

• 🚗 RC Cars & Electric DIY Vehicles

• 🔌 12V Power Supply Projects

• ⚡ Solar Backup Systems

• 🔧 Electronics Prototyping

🛡 Advantages

✔ Provides higher voltage (11.1V) from 3 cells
✔ Secure spring tension for firm battery contact
✔ Easy wiring with pre-attached leads
✔ Strong and heat-resistant body
✔ Cost-effective alternative to custom battery packs

⚠️ Important Safety Notes

• Use identical batteries (same brand, capacity, charge level).

• Always use a 3S BMS protection board for safety.

• Avoid short-circuiting the output wires.

• Do not mix old and new batteries.

• Not waterproof.