What is the LiFePO4 Temperature Range?

The LiFePO4 battery is generally capable of sustaining necessary performance in temperatures ranging from -20°C to 40°C. Recharging it at a temperature below zero is an issue often raised, and two solutions are often used in such conditions: use a battery heater or store it.

How do LiFePO4 Battery Perform in Different Temperature Ranges?

Among the most important parameters to consider when purchasing LiFePO4 batteries are their capacity and voltage.
Capacity:

This is the most noteworthy parameter. The size of the capacity can be said to directly affect the performance of the battery, and it is also an important reference value to measure its quality. Generally speaking, the larger the capacity, the better, and of course, the larger the capacity, the more expensive the battery will be.
LiFePO4 batteries perform best when their temperature range is above 10°C, according to the data. Approximately 15°C will result in the rated capacity and 25°C will result in a state slightly above the rated capacity. Furthermore, LiFePO4 batteries have a slight increase in performance at high temperatures because of their characteristics. For example, at 40°C, they will reach 120% of their rated capacity.
The performance of LiFePO4 batteries is relatively weak at low temperatures, but no matter what batteries you use, they suffer from this problem. At -20°C and -40°C, they can only reach about 60% and 40% of their rated capacity.
In summary, LiFePO4 batteries are suitable for use in scenarios where the temperature is suitable, and they perform better at high temperatures compared to low temperatures.
Voltage:

The nominal voltage of LiFePO4 batteries has always been 3.2V, but the actual situation is not stable at 3.2V. It fluctuates depending on the temperature range of LiFePO4.
In the range of -20°C to 50°C, the voltage of a LiFePO4 battery with 50% SOC remains stable between 3.2V and 3.3V, which is a very stable state, and it can be used for power inputs and outputs very well. At -20°C, the LiFePO4 battery can only provide a voltage of approximately 3.0V, and at room temperature, it can only provide a voltage of about 3.2V.
LiFePO4 batteries with significantly lower SOC are more affected by temperature. This shows that voltage varies with SOC and temperature.
For the use of daily energy storage, in reality, the effect of temperature on LiFePO4 batteries is not particularly large, and it is within an acceptable range because energy storage is not necessarily used frequently. The performance degradation of the battery, due to the limitation of temperature, is a significant blow to electric vehicles if it is applied to scenarios such as electric vehicles.

Summary

It will help you to use LiFePO4 more effectively if you understand its temperature range properly. There are several unforgettable benefits to LiFePO4 batteries, including extreme safety, long life, lightweight design, and high energy density… but only by learning more about LiFePO4 batteries are you able to maximize their performance and make your life easier.