can an electric car jump a gas car

[SanCora]

Yes, a modern electric vehicle (EV) can be used to jump-start a gasoline car, but it must be done with extreme caution and by using the car's 12-volt battery, not the high-voltage traction battery that powers the wheels. The process is similar to a standard jump-start but requires locating the 12V battery terminals, which are often in the front trunk or under a specific panel. The key is to treat the EV as the "good" battery source and follow the correct connection sequence to avoid damaging either vehicle's sensitive electronics.

The primary reason this works is that every EV has a standard 12-volt battery, just like a gas car. This smaller battery powers the vehicle's accessories: the lights, infotainment screen, windows, and most importantly, the computers that control the high-voltage system. When you jump-start another car, you are using the EV's 12V battery and its charging system as the power source.

Critical Safety Precautions:

• Consult Your Manual First: The single most important step. Some manufacturers, like Jaguar for the I-Pace, explicitly advise against using the vehicle for jump-starting others to prevent potential damage to its electrical systems.
• EV Must Be "On": The EV should be in its "Ready" or "On" mode. This ensures its DC-to-DC converter (which acts like an alternator) is active and will recharge the 12V battery, preventing it from being drained by the dead battery of the gas car.
• Correct Connection Order: Connect the positive (red) clamp to the dead battery's positive terminal. Then, connect the other positive clamp to the EV's 12V positive terminal. Next, connect the negative (black) clamp to the EV's 12V negative terminal or a designated unpainted metal ground. Finally, connect the final negative clamp to an unpainted metal surface on the engine block or frame of the gas car, away from the dead battery. This minimizes the risk of sparking near battery gases.
• Avoid the Traction Battery: Never attempt to connect jumper cables to the EV's main high-voltage battery pack, which is usually colored orange and is extremely dangerous.

EV Model	12V Battery Type	Recommended for Jump-Starting?	Key Consideration
Tesla Model 3/Y	Lithium-ion or Lead-Acid	Yes, with caution	Use front trunk terminals; car must be on.
Ford Mustang Mach-E	Absorbent Glass Mat (AGM)	Yes, with caution	Terminals under frunk floor panel.
Chevrolet Bolt EV	Lead-Acid	Yes	Follow manual procedure precisely.
Jaguar I-Pace	AGM	Not Recommended	Manufacturer advises against it.
Nissan Leaf	Lead-Acid	Yes	12V battery is under the hood.
Hyundai Ioniq 5	AGM	Yes, with caution	Dedicated jump-starting terminals under hood.

In summary, while it's a feasible emergency solution, using an EV to jump-start another car carries more risk than a traditional gas-car-to-gas-car jump. If you have a portable jump starter pack or roadside assistance available, those are safer and more reliable options.

[GiannaFitz]

As someone who's been stuck with a dead battery more than once, I can tell you it works. My neighbor's truck died in the driveway, and my Chevy Bolt got it running in five minutes. You're not using the big electric motor battery; you're using the small regular one under the hood, just like any other car. The main thing is to find the correct positive and negative terminals—they're not always obvious. A quick check of the owner's manual on your phone saved me a headache. It's a handy trick to know.

[VonBraxton]

Technically possible, but I'd think twice. Modern cars, especially EVs, are packed with expensive computers. A voltage spike from a wrong connection could cause thousands in damage. The process is different for every EV model. For instance, you might need to access terminals in the front trunk instead of under the hood. If you're not 100% confident in the procedure outlined in your specific vehicle's manual, it's far safer to call for roadside assistance. The risk outweighs the convenience.

[VanMaggie]

The answer lies in the 12-volt system. EVs need a standard battery to boot up the computers that manage the high-voltage system. When you jump a gas car, you're essentially using the EV as a smart power source. Its DC-to-DC converter keeps the 12V battery topped up, so you're less likely to drain it compared to using another gas car where the alternator might struggle. It's a clever workaround, but the connection points are often tucked away to discourage casual use, which is a clue that manufacturers prefer you to be cautious.

[PaulFitz]

I see it as a last-resort option. It's great that the capability is there for emergencies, say, if you're in a remote area with no other help. However, for routine assistance, a compact lithium-ion jump starter pack is a better investment. They're small, foolproof, and eliminate the risk of damaging your expensive EV's electronics. You just clip it onto the dead battery, start the car, and you're done. It’s a safer solution that protects your vehicle and doesn't require you to maneuver another car into position.