The Ultimate Guide to the Best 21700 Batteries in 2024

21700 batteries have become a popular choice for high-wattage devices, especially in the realm of vaping and other high-drain applications. Their superior capacity and discharge rates make them a preferred option for those who require reliable and long-lasting power. In this comprehensive guide, we will delve into the top 21700 battery brands of 2024, examining their performance, capacity, and overall value to help you make an informed decision.

Why Choose 21700 Batteries?

Enhanced Capacity and Performance

21700 batteries offer a higher capacity compared to their 18650 counterparts, making them ideal for devices that require sustained power over longer periods. With typical capacities ranging from 4000mAh to 5000mAh, these batteries provide more energy storage, which translates to longer use between charges.

Improved Discharge Rates

For high-drain devices, the discharge rate of a battery is crucial. 21700 batteries are designed to handle higher discharge currents, often supporting continuous discharge rates of up to 30A or more. This makes them suitable for applications like high-powered flashlights, power tools, and vaping devices.

Top 21700 Battery Brands of 2024

Samsung INR21700-40T

Overview

The Samsung INR21700-40T is renowned for its exceptional balance between capacity and high discharge rates. With a capacity of 4000mAh and a continuous discharge rating of 35A, it is one of the most versatile 21700 batteries available.

Key Features

• Capacity: 4000mAh
• Continuous Discharge Rate: 35A
• Nominal Voltage: 3.6V
• Cycle Life: Over 500 cycles

Applications

Ideal for high-drain devices such as vaping mods, power tools, and electric vehicles, the Samsung INR21700-40T provides both reliability and performance.

Sony | Murata VTC6A

Overview

Sony’s VTC series has been a staple in the battery industry, and the VTC6A continues this legacy. Known for its high discharge capabilities and reliability, the VTC6A is a top contender in the 21700 category.

Key Features

• Capacity: 4000mAh
• Continuous Discharge Rate: 30A
• Nominal Voltage: 3.6V
• Cycle Life: Over 500 cycles

Applications

Perfect for power-hungry devices, the VTC6A excels in scenarios requiring high discharge rates and consistent performance.

LG M50

Overview

The LG M50 stands out for its impressive capacity of 5000mAh, making it one of the highest capacity 21700 batteries on the market. While it has a slightly lower discharge rate compared to others, its capacity makes it ideal for applications where longevity is crucial.

Key Features

• Capacity: 5000mAh
• Continuous Discharge Rate: 20A
• Nominal Voltage: 3.6V
• Cycle Life: Over 500 cycles

Applications

Best suited for low to moderate drain applications where battery life is more critical than high current discharge, such as laptops and portable power banks.

Molicel P42A

Overview

Molicel’s P42A offers a great combination of high capacity and high discharge rate. With a 4200mAh capacity and a 30A continuous discharge rating, it is highly versatile and reliable.

Key Features

• Capacity: 4200mAh
• Continuous Discharge Rate: 30A
• Nominal Voltage: 3.6V
• Cycle Life: Over 500 cycles

Applications

Ideal for both high-drain and moderate-drain applications, the P42A is a great all-rounder for those needing a reliable and powerful battery.

Conclusion

Choosing the right 21700 battery depends on your specific needs. For high-drain applications, the Samsung INR21700-40T and Sony VTC6A are excellent choices. If you prioritize capacity over discharge rate, the LG M50 is unmatched. For a balanced option, the Molicel P42A offers both high capacity and discharge rates. Each of these batteries has been tested for reliability and performance, ensuring you get the best value for your investment.

Although not as popular as 18650 batteries, 21700 batteries remain the preferred choice for mods designed for high wattage outputs. However, the abundance of options available makes it challenging to determine the best 21700 batteries. So, how can we identify the top-performing 21700 batteries among the wide selection?