Electric vehicles (EVs) represent a shift toward a greener and more sustainable future, offering a convenient and reliable mode of transportation. However, despite their advantages in reliability, cost-efficiency, and performance, a few concerns remain, with battery health and longevity being among the most significant
Imagine planning a road trip only to find your EV’s battery isn’t holding a charge as it should—frustrating, right? Understanding these issues can help you avoid such situations. This blog covers the most common problems with electric car batteries, their causes and preventative measures.
Proper maintenance can prevent many common EV battery problems. In the video below, we walk through the best practices to extend your battery’s life and maximize its performance.
After watching the video, continue reading for more detailed tips and in-depth information.
EV Battery Problems: Causes and Symptoms
Battery problems can arise if the thermal management system fails to regulate temperature or if internal cells have manufacturing defects. Additionally, the battery pack gets damaged internally or externally due to some accident or chemical corrosion. Below are other reasons you can check.
In conventional internal combustion engine (ICE) vehicles, issues usually arise from mechanical wear and tear. However, EVs have fewer moving mechanical parts compared to ICE vehicles, but battery and software-related issues can still arise. Let’s have a look here:
1. Faulty Seals are Big Problems
Faulty seals may allow water to enter the battery pack, potentially causing serious damage. If you want to keep your drive safe and convenient, ensure that battery housing seals are intact to prevent water ingress. Some EV owners have reported that worn or improperly fitted seals can lead to moisture buildup or unusual whistling noises at high speeds.
2. Degraded Battery Life
Battery is the core component of the EVs and if its life drops or capacity comes down you can’t plan drives. Modern EV batteries are designed to last between 10 to 20 years, or roughly 150,000 to 200,000 miles, before significant degradation occurs. Yet due to excessive exposure to extreme temperatures and improper charging habits, EV batteries may degrade faster. Alternatively, the battery power gets affected if you don’t charge it in the right way. For detailed tips on maintaining your EV battery, check out our guide on EV Battery Charging Best Practices.
3. Due to Climate Control Systems
While climate control systems are built into EVs, using them excessively especially in extreme temperatures can significantly impact your battery range. However, the result is negative as these systems often operate at low ambient temperatures, which can significantly impact battery range. Learn more about how weather impacts battery performance in our article on EV Battery Life in Cold Weather.
4. Fire Events
While news reports often highlight EV fires, they are statistically much less common than fires in internal combustion engine (ICE) vehicles. As per data reports, gas-powered cars are actually more prone to catching fire due to the high heat generated by engines and the presence of flammable fuel. However, because lithium-ion batteries generate heat during heavy use and charging, experts recommend allowing your car to cool down to a normal temperature after a long trip before starting a high-speed charging session. Being cautious and monitoring your vehicle’s temperature is a simple way to ensure long-term safety.
5. The Role of Battery Management System (BMS):
Sometimes battery issues are actually software glitches within the BMS. The BMS is the brain that balances cells and manages temperature. To avoid, Keep your vehicle’s software updated to perceived range issues or charging bugs.
Recognizing Symptoms of EV Battery Problems
Keep an eye on warning sign displaying the Electric Vehicle battery issues.
- Infotainment System Alerts: The Infotainment System may also notify you about the potential underlying battery issues of EVs. It can impact the electrical system badly.
- Decreased Driving Range: Are you noticing a drop in the driving range than usual? It is the primary sign of battery degradation. Remember, a drop in range during winter is usually temporary, while a drop in range during summer may indicate permanent battery aging.
- Slow Charging: Is your EV taking too long to charge and still failing to hold it to cover long miles? Power and range fluctuation is also a warning.
- Unusual Heating: Is it producing unusual battery heating? Attention!! It’s a red signal.
Adopt the Preventative Measures to Avoid EV Battery Issues
Being mindful of preventative measures may drop the problematic events and eliminate the frequent maintenance visits to fix electric car battery issues. Here’s a quick checklist to follow:
- Avoid Fast Charging: Avoid frequent fast charging. Occasional DC fast charging is acceptable, but regular AC charging is better for long-term battery health.
- Pre-condition Your Vehicle: When possible, use your car’s app to warm or cool the cabin while it is still plugged in. This uses grid power instead of battery power, preserving your range.
- Charge Smartly: For daily use, maintain your battery’s State of Charge (SoC) between 20% and 80%. Charging to 100% is fine for long road trips, but leaving a battery at 100% for long periods in hot weather can accelerate chemical degradation.
- Stay Updated: Keep the software updated with the latest releases to efficiently use the best features.
- Warranty Disclaimer: (Pro Tip) Most EV manufacturers provide a separate battery warranty (typically 8 years or 100,000 miles). Always check your warranty terms before attempting any DIY “fixes” to avoid voiding your coverage.
Enjoy efficient and enjoyable drives keeping all these things in mind and proactively plan the trips with the right approach.
Conclusion
EVs represent a significant evolution in automotive technology, offering greater efficiency than gasoline vehicles. However, EVs can still encounter common battery-related issues. Thus it is recommended to schedule the complete periodic inspection of your EVs to the nearby checkpoints to fix the potential risks. Get aware of battery health, and its warranty coverage and make your drive more enjoyable for a long time.
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Disclaimer: Electric vehicle batteries involve high-voltage systems. Never attempt to open a battery pack or repair internal components yourself. Always consult a certified technician for battery-related repairs.
FAQs
Refer to the owner’s manual for basic checks, but consult authorized service centers for diagnosis and repairs.
A few of the areas encounter troubles like noises/ leaks, drive systems, climate systems, power equipment, components, hardware or software, in-car electronics, etc. it is significantly less as compared to the ICEs.
Don’t ignore manufacturer recall notices. In many cases, these are simple software updates that can be installed remotely (Over-the-Air) to improve battery safety and efficiency without you even visiting a dealership.
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