Li-Ion 3.7V 18650 Rechargeable Battery Cell (1500mAh)

The Li-Ion 3.7V 18650 Rechargeable Battery Cell (1500mAh) is a reliable and rechargeable lithium-ion battery designed to provide stable and long-lasting power for a wide range of portable electronic devices and DIY projects. With a nominal voltage of 3.7V and a capacity of 1500mAh, this battery offers an excellent balance of performance, portability, and rechargeability.

The standard 18650 cylindrical form factor makes it compatible with numerous battery holders, flashlights, emergency lights, power banks, robotics, IoT devices, and battery-powered electronics. The battery features low self-discharge, high energy density, and supports hundreds of charge and discharge cycles when used with a compatible lithium-ion charger and protection circuit.

Key Features of the 18650 Rechargeable Battery

• Rechargeable Lithium-Ion Battery Cell
• Standard 18650 Cylindrical Size
• Nominal Voltage: 3.7V
• Capacity: 1500mAh
• High Energy Density
• Low Self-Discharge Rate
• Long Cycle Life
• Lightweight and Compact Design
• Suitable for Battery Packs and Portable Devices
• Ideal for DIY Electronics and Embedded Projects

Technical Specifications

• Product Type: Rechargeable Lithium-Ion Battery
• Battery Chemistry: Lithium-Ion (Li-Ion)
• Battery Size: 18650
• Nominal Voltage: 3.7V
• Fully Charged Voltage: 4.2V
• Nominal Capacity: 1500mAh
• Rechargeable: Yes
• Battery Shape: Cylindrical
• Diameter: Approximately 18mm
• Length: Approximately 65mm
• Protection Circuit: Depends on the battery version (Protected or Unprotected)
• Operating Temperature: Varies by manufacturer
• Cycle Life: Typically 300 to 500 charge and discharge cycles (depending on usage and charging conditions)

How the Lithium-Ion Battery Works

The 18650 lithium-ion battery stores electrical energy through the movement of lithium ions between the positive and negative electrodes during charging and discharging.

Charging Process

During charging, lithium ions move from the positive electrode to the negative electrode, storing energy within the battery cell.

Discharging Process

When discharging, the stored lithium ions move back to the positive electrode, releasing electrical energy to power connected devices.

This rechargeable chemistry provides high energy density and consistent voltage output, making it suitable for portable electronic applications.

Applications and Uses

• Flashlights and LED Torches
• Power Banks
• Arduino and ESP32 Projects
• Robotics and Automation
• Portable Electronic Devices
• DIY Battery Packs
• Solar Energy Storage Projects
• Emergency Lighting Systems
• Wireless Electronic Devices
• IoT and Embedded Systems

Advantages of the 1500mAh 18650 Battery

• Rechargeable and reusable for multiple cycles
• High energy density in a compact form
• Lightweight and portable design
• Stable output voltage throughout discharge
• Low self-discharge maintains charge during storage
• Long operational lifespan
• Suitable for a wide range of electronic applications
• Cost-effective compared to disposable batteries

Safety and Usage Guidelines

• Charge only with a compatible Li-Ion battery charger designed for 3.7V (4.2V full-charge) lithium-ion cells.
• Do not overcharge, over-discharge, short-circuit, or puncture the battery.
• Use a Battery Management System (BMS) or protection circuit when building battery packs.
• Store the battery in a cool, dry place away from direct sunlight and heat.
• Do not expose the battery to water, fire, or extreme temperatures.
• Inspect the battery regularly and discontinue use if it becomes damaged, swollen, or leaks.

Note: Images are for illustration purposes only.