When the temperature drops to minus 20 degrees Celsius, the battery‘s capacity will significantly decrease. This is because low temperature slows down the chemical reaction inside the battery, resulting in a lower output voltage and reduced usable capacity. Generally, when lithium batteries are at minus 20 degrees Celsius, their capacity may only be 50% - 70% of that at normal temperature.
II. How to Deal with Low Temperature Environments
Preheat the battery: Before use, place the battery in a warm environment for a period of time to enhance its performance.
Reduce discharge current: Avoid performing high-current discharge in low-temperature environments to extend the battery life.
Keep the battery dry: A humid environment will intensify the impact of low temperatures on the battery, so be sure to take measures to prevent moisture.
III. Suggestions for Optimizing Battery Usage
When using lithium batteries in cold environments, certain measures can be taken to enhance their performance. For instance, using insulation covers or heating devices to maintain the battery temperature and avoiding prolonged exposure to extreme cold is advisable. Additionally, regularly checking the battery condition and ensuring it is in good working condition is crucial for extending the battery‘s lifespan.
