Why does the driving range drop significantly at once?

[OEden]

The driving range may drop significantly at once because the onboard computer adjusts the total drivable kilometers based on instantaneous fuel consumption after refueling, or there may be a malfunction. Possible causes of the malfunction: Faulty liquid level sensor leading to incorrect fuel level display; damaged fuel tank causing deformation that affects normal fuel level; excessive air intake in the fuel tank or fuel pipe leading to inaccurate display by the onboard computer. Ways to improve driving range: Regular vehicle maintenance, carbon deposit cleaning, throttle cleaning, etc.; avoid sudden acceleration or deceleration while driving to prevent increased fuel injection; minimize aggressive driving; avoid driving at high gear with low speed or low gear with high RPM; maintain normal tire pressure, as low tire pressure increases driving resistance and fuel consumption.

[CarmenFitz]

I've been driving for over twenty years, and recently, my electric car's range suddenly dropped. After observation, I found it's mainly due to driving habits and load issues. I often accelerate hard and brake suddenly, habitually turn the air conditioning up high, which consumes extra power. When traveling with my family, the car is packed with luggage, increasing the total weight, naturally affecting the range. I remember that time on a business trip, the range dropped by 50 kilometers on the highway. Later, I switched to smoother driving and limited the air conditioning to a moderate temperature, and the range recovered by 80-90%. Worn tires or insufficient tire pressure are also worth checking, as they increase rolling resistance and waste power. I suggest you check your driving records to see if you've been driving more aggressively lately or if there's more stuff in the car. It's common for battery efficiency to drop as the weather gets colder, but adjusting your behavior can improve it. Don't rush to worry about major issues; most are temporary factors, and small changes can bring big improvements. Keep checking your habits and handle it with ease.

[SanLydia]

I've researched EV performance, and sudden range reduction may stem from software glitches or battery health. After a system update, my car displayed significantly less range, possibly due to conservative algorithms or minor errors. With long-term use, battery degradation is common—cycle counts increase capacity loss, especially when parked in extreme temperatures. My app showed large battery temperature fluctuations causing unstable range; avoiding hot/cold storage environments helps protect it. Regularly calibrating the range system is crucial, like performing several charge-discharge cycles to let it relearn. Check for pending updates or try rebooting the electronics. Reducing high-power accessory usage (e.g., AC) while driving alleviates issues. Don't overlook minor software updates—ensuring app accuracy often resolves abrupt range drops through simple fixes.

[IvanMarie]

When I first bought my electric car, I was shocked by how quickly the range dropped. After investigating, I found that the air conditioning was set too high, especially in summer when cooling consumes a lot of power. Low tire pressure also increased resistance, reducing range invisibly. I learned to check tire pressure monthly and set the air conditioning to a moderate temperature for smoother driving and normal range. Simple changes, like reducing sudden braking, restored a lot of range. I recommend starting with daily details for checks, keeping it simple.