What an electric car is and how it runs

An electric car is powered by a rechargeable battery instead of gasoline or diesel. The battery sends electricity to an electric motor, which turns the wheels. When you press the accelerator, you're controlling how much power flows from the battery to the motor. When you brake, the motor can reverse and push power back into the battery — a process called regenerative braking that recovers energy you would otherwise lose.

The battery is the heaviest and most expensive part of an electric car. Modern batteries are lithium-ion, the same chemistry used in phone and laptop batteries but much larger. A typical electric car battery weighs 400 to 600 pounds and sits underneath the vehicle, lowering the center of gravity and improving handling.

Electric cars have far fewer moving parts than gas cars. There's no engine, no transmission fluid, no spark plugs, no oil changes. The motor has one moving part — the rotor. This simplicity means less can break and maintenance costs are lower over time.

Key Takeaways

  • Electric cars run on rechargeable batteries and electric motors instead of gasoline engines, with no oil changes or spark plugs to maintain.
  • You charge an electric car at home using a standard outlet or a dedicated charger, or at public charging stations, depending on the model's range and your driving patterns.
  • Most electric cars travel 200 to 300 miles per charge, though some newer models exceed 400 miles, and range decreases in cold weather and at highway speeds.
  • The upfront cost of an electric car is higher than a comparable gas car, but lower fuel and maintenance costs can offset that difference over five to ten years.
  • Charging speed depends on the charger type: a standard outlet takes 24+ hours, a home Level 2 charger takes 4 to 10 hours, and a public fast charger takes 20 to 45 minutes.

How far an electric car can travel on one charge

Range is how many miles an electric car can drive before the battery runs empty. Most current electric cars travel between 200 and 300 miles on a full charge. Some newer models, like the Tesla Model 3 Long Range and the Lucid Air, exceed 400 miles. Older or smaller electric cars may have a range of 100 to 150 miles.

Range is not fixed. It shrinks in cold weather — you may lose 20 to 40 percent of your range in freezing temperatures because the battery works less efficiently and the car uses energy to heat the cabin. Range also drops at highway speeds because of wind resistance; city driving uses less energy per mile than highway driving.

The battery gradually loses capacity over time, the same way a phone battery does. After eight to ten years, most electric car batteries retain 80 to 90 percent of their original capacity. Manufacturers typically warranty the battery for eight years or 100,000 miles, whichever comes first.

Where and how to charge an electric car

You can charge an electric car in three ways. A Level 1 charger is a standard 120-volt household outlet — the kind you use for lamps and phone chargers. It adds about 2 to 5 miles of range per hour and is useful only if you have weeks to charge or drive very short distances.

A Level 2 charger uses 240 volts, the same voltage as an electric clothes dryer or oven. You can install one at home for $500 to $2,500 including labor, or use one at a workplace, apartment building, or public parking lot. A Level 2 charger adds 25 to 30 miles of range per hour, so a full charge takes 4 to 10 hours depending on the battery size.

DC fast chargers are the fastest option and are found at public charging stations along highways and in cities. They add 100 to 200 miles of range in 20 to 45 minutes. However, fast charging generates heat and can stress the battery, so most electric cars slow down the charging speed after the battery reaches 80 percent to protect long-term battery health.

The cost to charge at home is roughly one-third the cost of gasoline per mile in most states. Public charging varies widely — some stations are free, some charge by the minute, and some charge by the kilowatt-hour (the unit of electricity). Many electric car owners do most charging at home overnight and use public chargers only for long trips.

The upfront cost and long-term savings

Electric cars cost more to buy than comparable gas cars. A new electric car typically costs $30,000 to $60,000, while a similar-sized gas car costs $25,000 to $45,000. The difference is the battery, which is expensive to manufacture.

However, the total cost of ownership — purchase price plus fuel and maintenance over the life of the car — can be lower for an electric car. Electricity is cheaper than gasoline per mile. Maintenance is cheaper because there are fewer parts to replace: no oil changes, no transmission servicing, no spark plugs, no timing belts. Brake pads last longer because regenerative braking does most of the stopping work.

Over five to ten years, the fuel and maintenance savings can offset the higher purchase price, especially if you drive more than 12,000 miles per year. The exact payback period depends on your local electricity rates, gas prices, how much you drive, and whether you install a home charger.

Performance and driving feel

Electric cars feel different to drive than gas cars. The acceleration is when ready — there's no engine revving or transmission shifting. Many electric cars, even modestly priced ones, accelerate from 0 to 60 mph in under 8 seconds. The heaviest part of the car (the battery) is underneath, which lowers the center of gravity and makes the car handle more like a sports car than a sedan.

The driving experience is quieter. There's no engine noise, only the sound of wind and tires. Some drivers find this relaxing; others miss the engine sound. Regenerative braking means you can often slow down by lifting off the accelerator without touching the brake pedal, which feels strange at first but becomes natural quickly.

Electric cars don't have a traditional transmission, so there's no gear shifting. You press the accelerator to go and the brake to stop, like an automatic transmission car but smoother. Some electric cars have a one-speed transmission; others have no transmission at all.

Cold weather, towing, and other real-world limits

Cold weather is the biggest real-world challenge for electric cars. In freezing temperatures, the battery's chemical reactions slow down, reducing power output and range. A car rated for 300 miles might only go 180 to 200 miles in winter. Heating the cabin also uses battery power. Some electric cars have heat pumps that warm the cabin more efficiently than older resistance heaters, which helps but doesn't eliminate the problem.

Towing reduces range significantly. If you tow a trailer, expect to lose 20 to 40 percent of your range depending on the trailer weight and aerodynamics. Most electric cars are not designed for heavy towing — a gas truck is still the better choice if you regularly tow more than 3,000 pounds.

Charging infrastructure is still developing. In cities and along major highways, charging stations are common. In rural areas, they can be sparse. Before buying an electric car, check whether there are charging stations along your regular routes and near places you visit frequently.

Electric cars versus plug-in hybrids and hydrogen cars

A plug-in hybrid (PHEV) has both a battery and a gas engine. It can run on electricity alone for 20 to 50 miles, then switches to gas. Plug-in hybrids are useful if you want the lower fuel costs of electric driving for daily commutes but don't want to worry about range on long trips. However, they're more complex and expensive to maintain than either a pure electric car or a gas car.

A hydrogen fuel cell car produces electricity by combining hydrogen gas with oxygen, with water vapor as the only emission. Hydrogen cars are zero-emission and refuel in minutes, but hydrogen stations are extremely rare — only a few hundred exist in the United States, mostly in California. Hydrogen cars are not practical for most buyers.

A pure electric car is the simplest and cheapest to own long-term if you have access to charging and your driving patterns fit the range. A plug-in hybrid makes sense if you have a long commute or take frequent long trips. A hydrogen car is not a practical choice for most people.

Frequently Asked Questions

Do electric cars work in the rain or snow?

Yes. The battery and electrical systems are sealed and waterproof. Snow and rain don't damage an electric car any more than they damage a gas car. However, snow reduces range because the car uses energy to heat the cabin and the battery works less efficiently in cold. Charging in the rain is also safe — the charging equipment is designed to prevent electrical hazards.

What happens if the battery dies while I'm driving?

The car doesn't suddenly stop. As the battery depletes, the car gradually loses power and slows down, similar to a gas car running out of fuel. The dashboard shows the remaining range, so you know when to charge. If you ignore the warnings and the battery fully depletes, the car stops and you'll need a tow truck, just like a gas car out of fuel.

Can I charge an electric car in an apartment without a dedicated parking spot?

It's difficult but possible. Some apartments have Level 2 chargers in common areas or parking lots. Some allow you to install a charger at your assigned spot. If neither is available, you'll need to rely on public charging stations, which is more expensive and less convenient than home charging. Check with your landlord and local charging networks before buying an electric car.

How long does an electric car battery last?

Most electric car batteries last eight to ten years or 100,000 to 150,000 miles, whichever comes first. After that, the battery retains 80 to 90 percent of its original capacity and still works, but the car's range decreases. Battery replacement costs $5,000 to $15,000 depending on the car, though prices are dropping as manufacturing scales up. Many used electric cars are still on their original battery.

Is it cheaper to charge an electric car than to buy gas?

Yes, in almost all cases. Electricity costs roughly one-third as much as gasoline per mile in most states. The exact savings depend on your local electricity rates and gas prices. If you charge at home during off-peak hours, the savings are even larger. Public charging is more expensive but still usually cheaper than gas.