A Comprehensive Knowledge About Best Battery for High Temperature

Batteries are widely used in various industries. Besides the batteries are requested to work in high-temperature environments, especially in extremely hot areas. When the batteries work in high-temperature environments, it will bring some risk to the batteries and affect their performance. When the batteries work at a temperature over 60 °C, it is called high-temp environment. When the batteries work over 60°C, we should some actions to reduce the temperature or boost the batteries’ high temp resistance.

This article will provide you with an in-depth discussion of the various types and unique characteristics of High-temp batteries, especially as compared to normal Li-ion batteries. Let’s find the best battery for high temperature.

The Classification of High Temp Battery

High temp batteries, also known as high-temp rechargeable batteries, are essential for applications requiring reliable performance in extreme environmental conditions. They are classified into three main types: high temp LiPo (Lithium Polymer) batteries, high temp 18650 lithium-ion battery packs, and high temp LiFePO4 batteries. Each type offers specific advantages and is tailored to meet the demands of various industries and applications.

High Temp LiPo Batteries

CMB offers high temp LiPo batteries designed to operate within a temperature range of -20°C to 80°C. These rechargeable battery packs are versatile and available in various shapes and capacities to suit diverse equipment specifications. Equipped with temperature monitoring through NTC (Negative Temperature Coefficients) and connectors, CMB’s high temp LiPo batteries ensure safety and efficiency by providing over-discharge, overcharge, and short circuit protection. Understanding the LiPo battery safety risks. Specifically engineered for outdoor sensors or camera systems, these batteries discharge between 0°C to 80°C and charge between 0°C to 45°C, making them ideal for harsh environmental conditions.

CMB’s dedicated engineering team continuously innovates to enhance the performance of high-temp LiPo rechargeable batteries, focusing on features such as high density and high discharge power tailored for extreme temperature environments. Moreover, CMB offers custom high-temp LiPo battery solutions to meet unique application requirements, ensuring optimal performance for outdoor sensors or IoT devices.

High Temp 18650 Lithium-Ion Battery Packs

CMB manufactures high temp 18650 lithium-ion battery packs engineered to withstand temperatures ranging from -40°C to 85°C. Rechargeable and highly durable, these battery packs find widespread use in in-vehicle GPS systems, IoT monitoring systems, outdoor monitor systems, car GPS trackers, and various IoT devices.

These batteries exhibit remarkable performance even in extreme temperatures. At -40°C with discharge rates of 0.2C and 0.5C, the retention rate of capacity remains at 53% and 50%, respectively. At the other end of the spectrum, at 85°C with a discharge rate of 0.5C, these batteries maintain a retention rate of 100% capacity. CMB’s engineering team conducted rigorous testing on high temp 18650 battery packs, demonstrating a retention rate of 95% capacity after 1000 hours of operation at 85°C.

High Temp LiFePO4 Batteries

CMB designs high-temp LiFePO4 batteries capable of operating effectively within an impressive temperature range of -50°C to 85°C. These rechargeable battery packs are equipped with Bluetooth and self-heating functions, ensuring high performance and long-lasting cycles. Suited for demanding applications such as drilling and mine exploration machines, these batteries offer reliability and stability in extreme environments.

High temp batteries play a crucial role in ensuring reliable operation in harsh environmental conditions. Whether it’s high temp LiPo batteries, high temp 18650 lithium-ion battery packs, or high temp LiFePO4 batteries, CMB provides an innovative best battery for high temperature solutions tailored to meet the specific needs of diverse industries and applications.

What Is The Difference Between High-Temp Batteries and Normal Li-ion Batteries?

High-temp batteries differ from normal li-ion batteries in several ways. Understanding these differences is critical for effective application in high-temprature environments.

Higher Capacity Retention

When the high-temp batteries are at 85°C, the capacity retention reaches 90%.

High temperature discharge
Internal Resistance Stability

The high-temp batteries have stable internal resistance stability when the batteries work over 60°C.

Longer Cycles

The high-temp batteries have longer cycles and 500 cycles with 90% capacity left.


High Temp Battery Pack Solution

At CMB, we take pride in our ability to design custom high temp battery pack for various applications. We have completed several custom best battery for high temperature. At CMB, we take pride in our ability to design custom high temp battery pack for various applications. Click to learn more about high-temperature batteries.

We have completed several custom best batteries for high temperatures. It is very important to choose the best battery for high temperatures. Allow us to showcase a few of our extraordinary custom battery solutions:

3.7V High-temp Lithium Battery Pack

Application Background: Our 3.7V high temp battery pack has proven to be the perfect solution for applications such as collecting and analyzing car data, including GPS and accelerometer data, as well as telematics data.

  • Voltage: 3.7V
  • Capacity: 2900mAh or 5800mAh
  • Working Environment: Outdoor
  • Small Dimension
  • 3-5 Years Warranty
  • Temperature Sensor

This battery pack not only works efficiently in high-temp environments but also excels in terms of capacity and lifespan. With its small and compact design, it can be easily fitted into a variety of applications while maintaining its durability and reliability. We offer our customers a 3-5-year warranty for longer usage and peace of mind. In addition, a built-in temperature sensor ensures optimal performance and overheating protection.

12V High-temp Lithium Battery Pack

Application background: Designed specifically for drilling application

  • Voltage: 12.8V
  • Capacity: 30Ah
  • Working Environment: Over 80°C
  • Battery Technology: Cooling water, heat Insulation
  • Service: Personal customization

This robust battery pack has unique cooling water and heat insulation technology that allows it to work perfectly in harsh thermal conditions. Our customization service ensures that the battery packs are perfectly matched to your specific drilling requirements, providing optimal performance and longevity.


In the ever-expanding high-temp environment, our customized high temp battery technology provides reliable, efficient, and tailored results for a wide variety of applications. Choosing one reliable battery for high temp environments is very important. Otherwise, it will bring some risks like fires, and explosions when your battery packs are not good at working in high temp environments. CMB has over 5 years of experience in developing and researching custom the best battery for high temperature. If you have more requests, please contact us.


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