IMREN 20700 3200mAh 40A Lithium Battery Comprehensive Review  IMREN Battery

IMREN 20700 3200mAh 40A Lithium Battery Comprehensive Review | IMREN Battery

When it comes to high-performance rechargeable batteries, IMREN has established itself as a leading brand known for its reliability and innovation. The IMREN 20700 3200mAh 40A Lithium Battery is no exception, offering exceptional power, efficiency, and safety features that make it a top choice for various applications. In this comprehensive review, we will delve into the specifications, features, and benefits of this remarkable battery, ensuring you have all the information you need to make an informed purchase.

Key Specifications

  • Brand Name: IMREN
  • Model: 20700-3200-40A
  • Size: Φ=20mm, H=70mm
  • Positive Terminal: Flat Top
  • Nominal Capacity: 3200mAh
  • Nominal Voltage: 3.7V
  • Standard Charge: CCCV, 1.50A, 4.20V±0.05V, 150mA cut-off
  • Standard Discharge: 40A
  • Charging Time: 2-3 hours, 3200mA (1.0C 5 rate)
  • Initial Impedance: 13-16mΩ
  • Weight: 55.0g±2g
  • Operating Temperature: Charging: 0℃45℃; Discharging: -20℃60℃
  • Storage Temperature: -20℃~45℃
  • Storage Humidity: ≤75% RH
  • Warranty: 1 Year

Unmatched Performance

The IMREN 20700-3200-40A Lithium Battery stands out for its impressive nominal capacity of 3200mAh and nominal voltage of 3.7V. These specifications ensure prolonged power delivery and stable performance across a wide range of devices. The high standard discharge rate of 40A makes it ideal for high-drain applications, such as vaping, high-powered flashlights, and other power-hungry gadgets. Whether you're a hobbyist or a professional, this battery ensures you have the reliable power you need to keep your devices running smoothly.

Advanced Charging Technology

Equipped with CCCV (Constant Current, Constant Voltage) charging technology, the IMREN 20700-3200-40A Battery offers safe and efficient charging. The standard charge parameters—1.50A charging current and precise voltage control—optimize the charging process, enhancing battery longevity and performance. The charger’s intelligent design ensures minimal risk of overcharging, providing peace of mind with every charge. With a charging time of just 2-3 hours, you can quickly power up and get back to your activities with minimal downtime.

Robust and Durable Design

Durability is a key feature of the IMREN 20700-3200-40A Battery. Designed to withstand the rigors of daily use, this battery features a robust construction that ensures long-lasting performance. The flat top positive terminal enhances compatibility with a variety of devices, while the low initial impedance of 13-16mΩ facilitates efficient energy transfer. These attributes combine to deliver a battery that is both reliable and efficient, making it a valuable addition to your power supply arsenal.

Versatile Applications

The versatility of the IMREN 20700-3200-40A Battery is another standout feature. Its wide operating temperature range and reliable performance in extreme conditions make it suitable for a variety of applications. From outdoor adventures and professional use to everyday gadgetry, this battery delivers consistent and dependable power. Compatible with numerous devices that use 20700 batteries, it is an excellent choice for users looking for a versatile and powerful battery solution.

Safety Features

Safety is a paramount concern when it comes to rechargeable batteries, and the IMREN 20700-3200-40A Battery excels in this regard. It features a special charging management circuit that prevents reverse connection, short circuits, overcharge, and overcurrent. These safety measures ensure that users can charge and use their batteries with confidence, knowing that their devices and personal safety are protected.


In summary, the IMREN 20700 3200mAh 40A Lithium Battery is a powerhouse of reliability, performance, and safety. Its advanced features, robust design, and versatile applications make it an outstanding choice for anyone in need of a high-quality rechargeable battery. Whether you're a professional or a casual user, investing in the IMREN 20700-3200-40A Battery ensures that you have a dependable power source for all your needs.

Disclaimer: Always follow safety guidelines and manufacturer recommendations when handling and using rechargeable lithium batteries. Improper usage may result in damage to property or personal injury.

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