3.7V 400mAh Lithium Polymer Rechargeable Battery (Li-Po)

The 3.7V 400mAh Lithium Polymer Rechargeable Battery (Li-Po) is a reliable and lightweight energy solution for compact electronic devices requiring stable and efficient power delivery. Designed for portability and long cycle life, this battery is ideal for IoT projects, embedded systems, wearables, and DIY electronics.

With a nominal voltage of 3.7V and a higher capacity of 400mAh, it provides extended runtime while maintaining a slim form factor. The battery is compatible with standard Li-Po charging and protection circuits, making it suitable for both prototyping and production use.

Note: Product image is for reference only. The battery part number, label, or brand may vary, but the electrical specifications remain the same.

Features:

• High-performance 3.7V Lithium Polymer cell
• 400mAh capacity for longer backup
• Compact, slim & lightweight design
• Rechargeable with good cycle life
• Stable discharge characteristics
• Compatible with standard Li-Po chargers and modules

Specifications:

• Battery Type: Lithium Polymer (Li-Po)
• Nominal Voltage: 3.7V
• Capacity: 400mAh
• Rechargeable: Yes
• Cell Format: Flat pouch cell
• Full Charge Voltage: 4.2V
• Typical Discharge Cut-off: 3.0V

Applications:

• IoT devices & smart sensors
• Arduino, ESP32, ESP8266 projects
• Wearable electronics
• Bluetooth & GPS modules
• Portable DIY electronics
• Robotics & low-power RC devices

Package Includes:

• 1 × 3.7V 400mAh Lithium Polymer Rechargeable Battery (Li-Po)