3.7V 2S Battery Chamber / Battery Holder

Electrical Specifications

If Wired in Series (2S)

• Nominal Voltage: 7.4V
• Fully Charged Voltage: 8.4V
• Cut-off Voltage: 6.0V

If Wired in Parallel (2P)

• Nominal Voltage: 3.7V
• Fully Charged Voltage: 4.2V
• Capacity: Sum of both cells

Approximate Dimensions

• Length: 78–80 mm
• Width: 40–42 mm
• Height: 20–22 mm

Compatible Batteries

• 18650 Li-ion 2200mAh
• 18650 Li-ion 2600mAh
• 18650 Li-ion 3000mAh
• 18650 Li-ion 3500mAh

Features

✔ Durable ABS plastic construction
✔ Strong spring contacts for secure battery connection
✔ Pre-soldered red and black output wires
✔ Easy battery installation and replacement
✔ Mounting holes for convenient fixing
✔ Compatible with rechargeable 18650 lithium-ion batteries

Applications

• DIY Battery Packs
• Arduino & ESP32 Projects
• Robotics
• Solar Power Systems
• Emergency Lighting
• Portable Electronics
• IoT Devices
• Battery Backup Solutions

Product Description

2 × 18650 Battery Holder Box with Wire Leads