Essential EV Functions Rely on the Often Overlooked Secondary Battery
Key Takeaways
- Leading cause of EV breakdowns is a faulty or dead 12-volt battery, stresses British breakdown provider Start Rescue
- EV's 12-volt battery, separate from the high-voltage battery, is crucial for functions like door locks, ignition, and air conditioning
- Regular use and charging of the EV help maintain the 12-volt battery; pre-conditioning the cabin while charging and using a trickle charger during long parking periods are recommended maintenance practices
- EV drivers should consult their vehicle's manual or dealer for specific 12-volt battery maintenance instructions to prevent breakdowns
Essential Maintenance Tips for Your EV’s 12-Volt Battery
Electric vehicles (EVs) are known for their reliability, but like any automobile, they require proper upkeep to remain in top condition. One often-overlooked aspect of EV maintenance is the 12-volt battery. Understanding how to care for this battery is crucial to preventing breakdowns and ensuring your EV operates smoothly.
Why the 12-Volt Battery Matters
Many EV owners may not realize that, in addition to the high-voltage battery that powers the motor, their vehicle contains a 12-volt battery. This smaller battery is essential for numerous functions, including door locks, ignition systems, air conditioning, safety equipment, and controls for the electric drivetrain. According to British breakdown provider Start Rescue, a faulty or dead 12-volt battery is the primary reason for EV breakdowns.
Simple Steps to Maintain Your 12-Volt Battery
Maintaining the 12-volt battery in an EV is straightforward and can help you avoid costly repairs. Start Rescue recommends the following practices to keep your EV’s 12-volt battery in optimal condition:
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Regular Use: One of the best ways to maintain your 12-volt battery is to use your EV regularly. Frequent driving ensures that both the high-voltage and 12-volt batteries remain charged and functional.
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Charging Habits: Charging your car regularly is beneficial not just for the main battery, but also for the 12-volt system. Unlike in internal combustion engine (ICE) vehicles, the 12-volt battery in an EV charges differently. Consistent charging helps keep it in good condition.
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Pre-Conditioning: Pre-conditioning the cabin temperature while your car is charging can also be helpful. This feature uses minimal energy and keeps your EV comfortable without draining the 12-volt battery.
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Trickle Chargers: If you plan to park your EV for extended periods—such as during a holiday—consider using a trickle charger. This slow, steady charge can prevent the 12-volt battery from discharging during long periods of inactivity.
Consult the Manual or Dealer
Given the critical role of the 12-volt battery, it’s important for EV drivers to consult their vehicle’s manual for specific maintenance instructions. If you're ever unsure, seeking advice from your EV dealer is also a wise step. Proper maintenance of your EV’s 12-volt battery will help ensure your vehicle remains reliable and ready to drive.