🔋 Battery Holder 2S for 18650 Battery (2 Cell Series Holder)

The 18650 Battery Holder 2S (2 Cells in Series) is a durable and practical battery case designed to hold two 18650 lithium-ion batteries connected in series configuration. When two 3.7V cells are installed, it provides a total output of 7.4V (8.4V fully charged).

This holder is ideal for DIY battery packs, robotics, portable electronics, and power supply projects requiring higher voltage.

✅ Key Features

• 🔋 Battery Type Supported: 18650 Li-ion cells

• 🔢 Configuration: 2 Cells in Series (2S)

• ⚡ Output Voltage: 7.4V (Nominal), 8.4V (Fully Charged)

• 🔌 Pre-Soldered Wires: Yes (Red = Positive, Black = Negative)

• 🔒 Strong ABS plastic body

• 🔄 Spring-loaded metal contacts

• 🛠 Easy battery installation and replacement

• 🧱 Compact and lightweight design

📊 Technical Specifications

🔧 Applications

• 🤖 Robotics Projects

• 🔋 DIY Lithium Battery Packs

• 🚨 Emergency Lighting Systems

• 🔊 Portable Audio Systems

• 🔌 7.4V Power Supply Projects

• 🚗 RC Cars & DIY Vehicles

• ⚡ Arduino & Electronics Prototyping

🛡 Advantages

✔ Provides higher voltage output (7.4V)
✔ Secure battery fit with spring tension
✔ Easy wiring with pre-attached leads
✔ Durable and heat-resistant plastic
✔ Cost-effective battery pack solution

⚠️ Important Notes

• Ensure correct polarity when connecting.

• Use identical batteries (same capacity & charge level).

• For safety, use a 2S BMS protection board when building battery packs.

• Do not short-circuit the wire leads.

• Not waterproof.