4 Things to Note to Preserve Electric Vehicle Battery Life

15.08.2025

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1. Limit Sudden Acceleration

One of the most damaging driving habits for the battery is sudden acceleration. When you press the accelerator hard, the battery has to discharge a large amount of energy in a short time to meet the engine's demand for increased power. This process generates heat and significant stress on the battery cells, accelerating degradation and reducing battery capacity over time.

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Instead, practice driving smoothly, accelerating gradually, and maintaining a stable speed. This driving style not only helps protect the battery but also increases the vehicle’s driving range, providing a smoother and more efficient driving experience.

2. Avoid Frequently Charging to 100%

Many people have a habit of charging the battery to 100% whenever they have the opportunity, but this is not good for the battery in the long run. Lithium-ion batteries function optimally when they are in a "mid-range" state, neither too full nor too empty. Charging the battery to 100% and holding it there for extended periods will increase stress on the battery, which is detrimental to its lifespan.

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Only charge to 100% when you are preparing for a long-distance trip. For daily use, try to keep the battery level between 20% and 80%. This is the ideal "safe zone" for maintaining the best battery health. Many modern electric vehicle models even have a charging limit setting feature, making it easy to comply with this rule.

3. Maintain a Moderate Charge Level When Not in Use

If you plan not to use your vehicle for a long period, such as during travel or a business trip, ensure the battery is charged to an appropriate level. Storing the car when the battery is too full (near 100%) or too empty (below 20%) can both reduce battery life. The ideal charge level when storing the car for an extended period is approximately 50%.

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After a few months of non-use, check the battery level again and charge it supplementarily if necessary to ensure the battery does not "die" due to energy depletion.

4. Avoid Extreme Temperatures

Temperature is the biggest enemy of lithium-ion batteries. Batteries operate most efficiently within a specific temperature range. Temperatures that are too hot will cause the battery to degrade quickly, while temperatures that are too cold temporarily reduce the battery's performance and capacity.

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In the summer, try to park the car in the shade, in a garage, or in an underground parking lot to avoid direct sunlight. In the winter, if possible, park the car in a garage to keep the battery warm. Additionally, using the vehicle's battery conditioning feature before charging also helps optimize the charging process and protect the battery.