IMREN 21700 Battery Advantages Why Choose High-Capacity Lithium Batteries  IMREN Battery

IMREN 21700 3750mAh 40A Battery Advantages: Why Choose High-Capacity Lithium Batteries? | IMREN Battery

In the ever-evolving world of portable power, high-capacity lithium batteries have become indispensable. The IMREN 21700 3750mAh 40A battery, with its exceptional performance and reliability, stands out as a top choice for both casual users and professionals. This article delves into the advantages of the IMREN 21700 battery and why it should be your go-to for high-capacity lithium power solutions.

Key Specifications of IMREN 21700 3750mAh 40A Battery

Before exploring the benefits, it's essential to understand what makes the IMREN 21700 battery special:

  • Nominal Capacity: 3750mAh
  • Nominal Voltage: 3.7V
  • Standard Charge: CCCV, 1.50A, 4.20V±0.05V, 150mA cut-off
  • Standard Discharge: 40A
  • Charging Time: 2-3 hours, 3750mA (1.0C 5rate)
  • Initial Impedance: 13-16mΩ
  • Weight: 55.0g±2g
  • Operating Temperature: Charging: 0℃-45℃, Discharging: -20℃-60℃
  • Dimensions: (Φ=21mm, H=70mm)

Superior Performance and Capacity

One of the most significant advantages of the IMREN 21700 battery is its high nominal capacity of 3750mAh. This means it can store more energy than many other batteries in the same category, allowing for longer use between charges. For high-drain devices like vaping mods, power tools, and flashlights, this extended runtime is invaluable.

High Discharge Rate

The IMREN 21700 battery boasts a standard discharge rate of 40A. This high discharge rate ensures that the battery can deliver a consistent and powerful performance even under demanding conditions. Whether you are a professional needing reliable power for your tools or an enthusiast looking for peak performance in your gadgets, the IMREN 21700 has you covered.

Efficient Charging

Equipped with CCCV (Constant Current, Constant Voltage) charging technology, the IMREN 21700 battery ensures safe and efficient charging. The standard charge parameters (1.50A, 4.20V±0.05V) are designed to maximize battery life and efficiency. A typical charging time of 2-3 hours means you spend less time waiting and more time using your devices.

Durability and Safety

IMREN batteries are known for their robust construction and the 21700 model is no exception. With an initial impedance of 13-16mΩ, this battery ensures low internal resistance, which translates to better energy transfer and less heat generation. The wide operating temperature range (Charging: 0℃-45℃, Discharging: -20℃-60℃) makes it suitable for various environments, ensuring reliable performance whether you're indoors or outdoors.


The IMREN 21700 battery's dimensions (Φ=21mm, H=70mm) and flat top design make it compatible with a wide range of devices. From high-powered flashlights and vape mods to electric vehicles and power tools, this battery's versatility is a significant advantage. Its ability to fit in various applications means you can standardize your power needs with a single battery type, simplifying your inventory and reducing costs.

Eco-Friendly and Cost-Effective

High-capacity lithium batteries like the IMREN 21700 are more environmentally friendly compared to disposable batteries. They reduce waste and are cost-effective in the long run due to their rechargeable nature. Investing in a high-quality, rechargeable battery means fewer replacements and less environmental impact.


In summary, the IMREN 21700 battery offers numerous advantages that make it an excellent choice for anyone needing reliable, high-capacity power. Its superior performance, high discharge rate, efficient charging, durability, and versatility set it apart from the competition. Whether you're a professional or a tech enthusiast, choosing the IMREN 21700 battery means opting for quality and reliability.

Make the smart choice today and experience the power and efficiency of the IMREN 21700 battery. Your devices deserve the best, and with IMREN, you can be confident you're getting top-notch performance every time.

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