3.7V 2600mAh Li-Ion Battery

3.7V 2600mAh Li-Ion Battery is a high-capacity, lightweight, and long-lasting rechargeable battery designed for a wide range of portable electronic devices, DIY electronics, embedded systems, and IoT projects. Known for its excellent power density and stable output, this lithium-ion cell is one of the most reliable energy sources for consumer electronics and compact battery-powered systems. Its compact size, robust construction, and consistent voltage supply make it the preferred choice for engineers, hobbyists, and manufacturers who require dependable power performance.

Built with advanced lithium-ion chemistry, this 2600mAh battery offers superior charge retention and minimal self-discharge, ensuring your devices remain powered for longer periods. It supports hundreds of charge cycles without significant capacity loss, making it cost-efficient and environmentally friendly. Whether you’re building a power bank, upgrading a portable device, or creating a battery pack for robotics or DIY electronics, this Li-Ion battery delivers the perfect balance of capacity, size, and durability.

Its integrated safety features, such as over-charge, over-discharge, and short-circuit protection (if paired with a protection circuit board), guarantee safe and stable operation. The battery is ideal for applications where efficiency, reliability, and compactness are essential. If you are looking for a high-performance cell for your project, the 3.7V 2600mAh Li-Ion Battery delivers unbeatable value and trusted performance.

Key Specifications

• Battery Type: Lithium-Ion (Li-Ion)

• Nominal Voltage: 3.7V

• Capacity: 2600mAh (2.6Ah)

• Charging Voltage: 4.2V (maximum)

• Discharge Cut-off Voltage: 2.75V – 3.0V (typical)

• Continuous Discharge Current: 1C–2C (varies by model)

• Cycle Life: 300–500 charge cycles

• Energy Density: High (ideal for compact applications)

• Dimensions: Standard cylindrical 18650 size (varies slightly by manufacturer)

• Weight: Approx. 45g–48g

• Operating Temperature:

  • Charge: 0°C to 45°C

  • Discharge: –20°C to 60°C

• Safety: Requires protection circuit for safe operation (BMS/PCB recommended)

Features

1. High Energy Capacity (2600mAh)

This Li-Ion battery provides enough capacity to power devices for extended periods without frequent recharging, making it perfect for portable and battery-intensive applications.

2. Stable 3.7V Output

Ensures consistent power delivery, essential for electronics that require a reliable voltage supply for optimal performance.

3. Lightweight and Compact

With a high energy-to-weight ratio, the battery fits easily into small enclosures, making it ideal for compact device designs and embedded systems.

4. Long Cycle Life

Engineered for durability, it supports hundreds of recharge cycles while maintaining performance, ensuring long-term value and reduced replacement costs.

5. Low Self-Discharge

Retains charge effectively even after long storage periods, making it suitable for standby devices and emergency power products.

6. Fast Charging Capability

Compatible with fast-charging circuits, allowing quick recharge times without compromising battery health.

7. Safe and Reliable

When used with a protection board, it prevents overcharging, over-discharging, and short circuits, ensuring safe operation in all conditions.

8. Versatile Compatibility

Suitable for a broad range of electronics, DIY projects, and industrial applications requiring a stable power source.

Applications

Consumer Electronics

• Power banks

• Bluetooth speakers

• Portable fans

• LED flashlights

• Smart toys

DIY & Embedded Projects

• Arduino-based systems

• Raspberry Pi portable projects

• Wearable devices

• IoT sensors and modules

Robotics & Automation

• Mini robots

• Motor-driven circuits

• Wireless controllers

Medical & Industrial Devices

• Portable medical instruments

• Monitoring devices

• Test and measurement equipment

Backup & Energy Storage

• Emergency lighting

• Small UPS systems

• Battery backup modules