Electric cars are becoming more common on the roads these days—and for good reason. They’re clean, quiet, and often cheaper to run than traditional gas-powered vehicles. But what happens when your EV won’t start? Maybe you left the lights on or the car just sat for too long. The natural instinct is to grab a pair of jumper cables, but here’s the question many new EV owners ask: Can you jumpstart an electric car?
The answer isn’t as straightforward as with a gas car, but don’t worry—we’ll walk you through it clearly and safely.
How Do Electric Cars Handle Power Differently?
To understand whether you can jumpstart an electric car, it helps to know a little bit about how they work.
Unlike gas cars, EVs don’t use internal combustion engines. Instead, they rely on large, high-voltage lithium-ion battery packs to power the electric motor and drive the car. These are the big batteries that give your EV its range—think of them as the “engine” of the car.
But here’s something many people don’t realize: electric cars also have a standard 12-volt battery, just like a gas-powered car. This smaller battery powers accessories like:
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Headlights and interior lights
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Infotainment system and dashboard
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Power windows and locks
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Climate control system
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Starting the car’s computer system (which then activates the main battery)
So, even though your EV has a huge battery for driving, the small 12V battery is essential for getting everything up and running.
Can You Jumpstart an Electric Car?
Yes, you can jumpstart the 12-volt battery in an electric car if it dies. In fact, it’s fairly common, especially in colder months or if the car has been left parked for a long time without use.
If your EV doesn’t respond when you try to start it—no lights, no sounds, no dashboard activity—there’s a good chance the 12V battery is dead. In that case, you can jumpstart it using either:
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A portable jump starter (recommended for EVs)
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Another car with a working battery (but only if your EV manufacturer allows it)
Once the 12-volt battery gets enough juice to wake up the system, the main battery can take over and power the vehicle as usual.
Important Warning: Never Try to Jumpstart the Main EV Battery
It’s very important to understand that you should not attempt to jumpstart the main high-voltage battery in an electric car. These batteries are complex and powerful, and mishandling them could lead to serious damage or even injury. If your main EV battery has failed or won’t charge, it’s best to call for professional help or roadside assistance.
Can You Use an Electric Car to Jumpstart Another Vehicle?
This is where things get a bit more technical. Most EVs are not designed to provide a jumpstart to another car. Their electrical systems are built differently, and attempting to use your EV to jump another vehicle could result in:
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Damage to your 12V system
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Voiding your vehicle’s warranty
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Electrical faults or system errors
Some newer EVs, like certain Tesla models, may have the capability, but it’s still strongly recommended that you check the owner’s manual before trying it.
Safety Tips for Jumpstarting an Electric Car
If you need to jumpstart the 12-volt battery on your EV, follow these simple steps and precautions:
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Read the owner’s manual first. Every EV is a little different, and some have unique access points or safety instructions.
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Use a portable jump starter when possible. These are safer and less risky than using another car.
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Locate the 12V battery. It may not be under the hood—it could be in the trunk or under the rear seats, depending on your model.
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Connect cables properly: Positive to positive, negative to a clean, unpainted metal surface on your car (not the battery terminal).
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Wait a minute or two, then try starting the car.
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Once started, let the car run for 10–15 minutes to recharge the 12V battery.
Final Thoughts
So, can you jumpstart an electric car? Yes—but only the 12-volt battery. Trying to jump the main battery is a no-go, and using your EV to jump another car is risky business.
EVs are smart machines, but even they need a little help now and then. Knowing how to safely jump your car can save you time, money, and stress. Just remember: always follow the owner’s manual, stay safe, and don’t be afraid to call roadside assistance if you’re unsure.
Have you had to jumpstart your EV before? Share your experience in the comments!
