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How to properly maintain electric vehicle batteries.

The battery is the "heart" of an electric vehicle; replacement is expensive and directly impacts performance. Therefore, proper battery maintenance is key to making your vehicle more durable, safer, and cost-effective.

Báo Nghệ AnBáo Nghệ An28/07/2025

Electric vehicles are currently gaining popularity and are becoming a global trend. Electric vehicles are more environmentally friendly due to their near-zero emissions, lower maintenance costs because they have fewer moving parts, and significantly lower operating costs compared to traditional gasoline vehicles.

Just like batteries in phones or laptops, electric vehicle batteries need proper care to maintain optimal performance. The condition of the battery directly affects driving range, vehicle operation, and safety. Proper battery maintenance not only extends lifespan and reduces the risk of unexpected failures but also keeps performance close to its factory-new condition.

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Illustrative image.

Small habits like avoiding full 100% charging, limiting fast charging, refraining from sudden acceleration, and protecting your vehicle from extreme temperatures can slow down battery aging, saving you significant costs in the long run.

Proper battery charging: The key to extending the lifespan of electric vehicle batteries.

It may sound counterintuitive, but charging an electric vehicle battery to 100% isn't a good idea. The ideal charge level is between 20% and 80%, which is the "safe zone" that reduces stress on lithium-ion battery cells and limits capacity degradation over time.

Similarly, letting the battery completely drain (below 20%) should also be avoided. Repeated deep discharges will intensify the chemical reactions inside the battery, reducing its ability to hold a charge and shortening its lifespan in the long run.

In the hustle and bustle of life, from dropping off children at work to running errands, monitoring the battery status of electric vehicles is sometimes forgotten. This is where fast charging becomes a lifesaver. However, despite its convenience, fast charging technology using direct current (DC) can generate a lot of heat and put significant stress on the battery. If overused frequently, it can accelerate battery aging.

Instead, you should consider investing in an AC charger suitable for overnight charging at home. Although it takes a few hours to fully charge, this is a more battery-friendly option, helping to extend its lifespan and ensuring safe use.

Most electric vehicle manufacturers now offer fairly long battery warranties. However, to be eligible for warranty coverage, the vehicle needs to be properly maintained and charged according to the manufacturer's instructions.

Therefore, mastering and correctly applying battery charging principles not only gives you peace of mind when using your electric vehicle every day, but is also a crucial step in protecting battery life, optimizing performance, and ensuring warranty rights from the manufacturer.

Small habits that help extend the lifespan of electric vehicle batteries.

Caring for electric vehicle batteries isn't just about proper charging; it's a comprehensive process that starts with your daily usage habits.

One of the factors that strongly impacts battery performance is ambient temperature. Both extremely cold and extremely hot weather can alter the chemical reactions inside lithium-ion batteries, causing a reduction in operating range of up to 46%.

Therefore, on cold days, prepare your vehicle in advance by fully charging the battery, warming up the car before driving, and parking in a sheltered area. Conversely, in hot weather, park in a shady spot or covered parking lot to minimize the negative impact of high temperatures.

According to research, electric vehicle batteries operate optimally at temperatures around 32°C, but when exceeding 38°C, their operating range can decrease by 17% to 18%. If this situation persists, the battery will not only lose efficiency but also experience a significant reduction in lifespan.

Additionally, how you drive also affects battery health. Sudden acceleration or frequent abrupt braking subjects the battery to strong discharge cycles, similar to high instantaneous currents that can generate excess heat and reduce system lifespan. To protect your battery, get into the habit of accelerating and braking smoothly, especially when driving in urban areas.

Another common mistake made by many electric vehicle owners is "storing" their vehicles away out of concern for range. Infrequent use or leaving the vehicle idle for extended periods can lead to self-discharge of the battery, affecting its condition and lifespan.

If you need to park your car for an extended period, you should activate battery storage mode, regularly check the battery level, and maintain it at a reasonable level (usually between 50–70%).

Finally, don't overlook over-the-air software updates. These updates often include improvements in power management, optimizing battery performance over time and under real-world usage conditions.

With just a few simple changes to your daily habits, you can not only extend battery life but also maintain optimal performance for your electric vehicle.

Source: https://baonghean.vn/cach-bao-duong-pin-xe-dien-dung-cach-10303410.html


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