3.7V 2000mAh Rechargeable Lithium-Ion Battery

The 3.7V 2000mAh Rechargeable Lithium-Ion Battery is a high-performance rechargeable power source designed to deliver reliable and long-lasting energy for a wide variety of portable electronic devices and battery-powered systems. With a nominal voltage of 3.7V and a capacity of 2000mAh, this battery provides stable power output and extended operating time, making it suitable for applications that require efficient, lightweight, and rechargeable energy storage.

Built using advanced Lithium-Ion (Li-Ion) technology, this battery offers high energy density, low self-discharge, lightweight construction, and a long cycle life compared to conventional rechargeable battery technologies. It can be charged and discharged hundreds of times while maintaining consistent performance, making it an economical and environmentally friendly power solution for modern electronics.

The battery delivers a stable output voltage throughout most of its discharge cycle, ensuring reliable operation of connected devices. It can be recharged using a compatible Lithium-Ion battery charger, allowing repeated use without the need for frequent battery replacement. Many applications also use battery protection circuits that help safeguard the battery against overcharging, over-discharging, over-current, and short circuits, improving both safety and battery lifespan.

Manufactured using premium-quality lithium-ion cells, the battery provides low internal resistance, efficient power delivery, and dependable performance under normal operating conditions. Its compact cylindrical or pack design (depending on the model) allows easy integration into a wide range of electronic products.

The 3.7V 2000mAh Rechargeable Lithium-Ion Battery is widely used in portable electronic devices, Arduino projects, ESP32 development boards, ESP8266 systems, Raspberry Pi projects, robotics, drones, wireless communication devices, IoT devices, LED lighting systems, GPS trackers, portable medical equipment, security systems, battery-powered tools, handheld instruments, Bluetooth devices, emergency lighting, portable fans, smart home devices, embedded systems, and DIY electronics projects.

Whether you are designing a battery-powered product, replacing an existing rechargeable battery, building a robotics project, or developing portable electronic equipment, this lithium-ion battery provides a reliable, efficient, and long-lasting power solution.

Working Principle

A Lithium-Ion Battery stores electrical energy through reversible electrochemical reactions between its positive and negative electrodes.

During charging, lithium ions move from the positive electrode to the negative electrode, where they are stored. During discharge, the lithium ions travel back to the positive electrode, generating an electric current that powers the connected electronic device.

The battery has a nominal voltage of 3.7V, reaches approximately 4.2V when fully charged, and should generally not be discharged below 3.0V to maximize battery life. Using a proper lithium-ion charging circuit helps ensure safe operation and extends the overall service life of the battery.

Key Features

• Nominal voltage: 3.7V

• Capacity: 2000mAh

• Rechargeable Lithium-Ion battery

• High energy density

• Stable voltage output

• Low self-discharge rate

• Lightweight construction

• Long charge and discharge cycle life

• Low internal resistance

• Reliable power delivery

• Fast charging capability with compatible charger

• Environmentally friendly rechargeable design

• Long operational life

• Suitable for portable electronic devices

• Ideal for battery-powered applications

Applications

The 3.7V 2000mAh Rechargeable Lithium-Ion Battery is widely used in:

• Arduino projects

• ESP32 development

• ESP8266 projects

• Raspberry Pi accessories

• Robotics

• Drones

• RC vehicles

• IoT devices

• Wireless sensor nodes

• Bluetooth devices

• GPS trackers

• LED lighting systems

• Portable medical equipment

• Battery-powered tools

• Security systems

• Smart home devices

• Portable fans

• Emergency lighting

• Embedded systems

• Portable electronic devices

• DIY electronics projects

• Educational electronics

Specifications

• Product Type: Rechargeable Lithium-Ion Battery

• Battery Chemistry: Lithium-Ion (Li-Ion)

• Nominal Voltage: 3.7V

• Capacity: 2000mAh

• Rechargeable: Yes

• Cell Configuration: Single Cell (1S)

• Fully Charged Voltage: 4.2V

• Recommended Minimum Voltage: Approximately 3.0V

• Charging Method: Compatible Lithium-Ion Battery Charger

• Application: Portable electronic equipment

Package Includes

• 1 × 3.7V 2000mAh Rechargeable Lithium-Ion Battery

Safety Precautions

• Charge only with a compatible Lithium-Ion battery charger.

• Do not overcharge or over-discharge the battery.

• Avoid short-circuiting the battery terminals.

• Do not puncture, crush, or expose the battery to fire or excessive heat.

• Store in a cool, dry location away from direct sunlight.

• Do not use the battery if it becomes swollen, damaged, or overheated.

• Observe correct polarity during installation.

• Use a battery protection circuit where applicable for enhanced safety.