Taking an Electric Vehicle on a Long Road Trip in South Carolina

Plan your route around charging stations, not gas stations

The biggest difference between driving an electric vehicle (EV) on a long trip and driving a gas car is that you cannot refuel in five minutes at any exit. Instead, you need to know where charging stations are located before you leave, and you need to build charging time into your schedule.

Most modern EVs can travel 200 to 300 miles on a full charge, though this varies by model, weather, and how fast you drive. On a 500-mile trip, you will need to stop and charge at least once. On a 1,000-mile trip, you will need multiple charging stops. Unlike a gas station, a charging session takes 20 minutes to an hour depending on the charger type and your battery level.

Before you leave, map your route using an EV-specific tool. PlugShare, ChargeHub, and the charging apps built into most EV models (Tesla's navigation, Chevy's OnStar, Ford's FordPass) all show real-time charger locations and availability. Plan to charge when your battery reaches 20 percent, not when it is empty, because charging slows dramatically at very low levels.

Key Takeaways

• Use an EV charging app before you leave to map chargers along your route and confirm they are working, because some are offline or broken.
• Plan to stop for charging every 150 to 200 miles rather than waiting until your battery is nearly empty, which takes longer to recharge.
• DC fast chargers on highways add 30 to 60 minutes to your trip but restore 200 miles of range; Level 2 chargers take 4 to 10 hours but cost less.
• South Carolina has chargers along I-95, I-26, and I-85, but rural routes have fewer options, so confirm charger availability before choosing your path.
• Cold weather reduces range by 20 to 40 percent, so add extra charging stops if you are traveling in winter or to higher elevations.

Understand the difference between DC fast chargers and Level 2 chargers

Charging speed depends on the type of charger. DC fast chargers (also called DCFC or superchargers) deliver power directly to your battery and can add 100 to 200 miles of range in 20 to 40 minutes. These are what you want for long trips because they are usually located on or near major highways. Tesla Superchargers, Electrify America, EVgo, and Chargepoint all operate DC networks across South Carolina.

Level 2 chargers are slower but more common. They add 25 to 30 miles of range per hour and take 4 to 10 hours for a full charge. You will find these at hotels, restaurants, shopping centers, and some rest areas. Level 2 makes sense if you are stopping for a meal or overnight stay, but not for a quick highway break.

There is also Level 1, which is a standard household outlet and adds only 2 to 3 miles per hour. Do not plan a long trip around Level 1 chargers.

Check charger availability and reliability before you go

Not every charger shown on a map is actually working. Some are offline for maintenance, some are broken and waiting for repair, and some are blocked by parked cars. Open the charging app 24 hours before your trip and check the status of every charger you plan to use. Most apps show whether a charger is available, how many ports are open, and recent user reviews.

If a charger shows as offline or has poor reviews, do not count on it. Instead, identify a backup charger 10 to 15 miles away on the same route. This takes five minutes now and prevents you from arriving at a dead charger with a low battery.

Some chargers require membership or a specific app to activate. Electrify America, EVgo, and Chargepoint all let you pay per session without membership, but Tesla Superchargers historically required a Tesla vehicle (though some now open to other brands). Check what payment methods each charger accepts before you arrive.

Account for weather and driving conditions that reduce range

Your EV's advertised range assumes ideal conditions: moderate temperature, highway driving, and a fully charged battery. Real-world range is often lower. Cold weather reduces range by 20 to 40 percent because the battery works less efficiently and you use energy to heat the cabin. Highway driving at 70 miles per hour uses more energy than city driving. Hilly terrain and heavy traffic also reduce range.

If you are traveling in winter or through mountainous areas, add an extra charging stop to your plan. If you are driving through South Carolina in summer, you may get closer to the advertised range, but do not assume you will hit it exactly.

Tire pressure also matters. Underinflated tires increase rolling resistance and reduce range by 5 to 10 percent. Check your tire pressure before a long trip.

Know what to do if you run low on charge between stations

If you misjudge distance and your battery drops below 10 percent before reaching a charger, slow down. Driving at 55 miles per hour instead of 70 uses significantly less energy and can extend your range by 20 to 30 percent. Turn off climate control if the weather allows. Avoid using the air conditioner or heater aggressively.

Most EVs show a real-time range estimate on the dashboard. This estimate accounts for your current driving pattern and remaining battery, so trust it more than the advertised range. If the estimate shows you cannot reach the next charger, find the nearest one immediately, even if it is not on your planned route.

If you do run out of charge on the road, you will need a tow truck. Roadside assistance through your car's manufacturer, your insurance company, or AAA can tow you to a charger. This is why membership in one of these services is worth considering before a long trip.

Factor charging time into your trip schedule

A 500-mile trip in a gas car takes about 7.5 hours of driving plus one 5-minute fill-up. The same trip in an EV takes about 7.5 hours of driving plus 45 minutes to an hour of charging (assuming one DC fast-charge stop). The total time is roughly comparable if you plan the stop strategically.

A 1,000-mile trip is where the difference becomes noticeable. You will need two or three charging stops, each adding 30 to 60 minutes. Plan for a total trip time that is 1.5 to 2 hours longer than in a gas car. If you are splitting the drive over two days, charge overnight at your hotel using a Level 2 charger if available, which can restore most of your range by morning.

Use charging time productively. Eat a meal, use the restroom, check your email, or walk around. Many highway chargers are located at restaurants or rest areas, so you can charge while you do something else.

South Carolina charging infrastructure on major routes

Interstate 95 (running north-south through the eastern part of the state) has the most developed charging network, with DC fast chargers near Florence, Savannah, and the Georgia border. Interstate 26 (running from Charleston northwest toward the mountains) has chargers near Charleston, Summerville, and Orangeburg. Interstate 85 (running northeast toward North Carolina) has chargers near Spartanburg and Greenville.

Rural routes and secondary highways have fewer chargers. If you are planning a trip through the Lowcountry, Upstate, or Midlands on roads other than the interstates, check your charging app carefully and plan for longer distances between stops. Some rural areas may not have a DC fast charger within 50 miles.

South Carolina does not have a state-specific EV charging network, so you will rely on national networks like Electrify America, EVgo, Chargepoint, and Tesla Superchargers. Prices vary by network and location, typically ranging from $0.25 to $0.50 per kilowatt-hour for DC fast charging.

Frequently Asked Questions

Can I charge my EV at a regular outlet while traveling?

Yes, but it is impractical for long trips. A standard household outlet (Level 1) adds only 2 to 3 miles of range per hour, so charging overnight might add 30 to 50 miles. This works if you are staying at a hotel or friend's house, but not for highway stops. Ask your hotel if they have a Level 2 charger available, which is much faster.

What happens if I cannot find a working charger?

Check your charging app before you arrive to confirm the charger is online. If you arrive and find it offline, use your app to locate the nearest working charger and drive there immediately. This is why mapping backup chargers before your trip matters. If you are truly stranded, call roadside assistance and have your vehicle towed to a working charger.

Does towing an EV use more charge?

Yes. Towing a trailer or carrying a heavy load reduces range by 10 to 30 percent depending on weight and aerodynamics. If you are towing on a long trip, add extra charging stops and plan for reduced range.

Can I charge my EV at a Tesla Supercharger if I do not own a Tesla?

Some Tesla Superchargers now open to other EV brands, but not all. Check the Tesla app or your vehicle's navigation to see which Superchargers accept non-Tesla vehicles. You will need an adapter and a Tesla account or payment method to use them.

Is it cheaper to charge at home before leaving or charge on the road?

Charging at home is almost always cheaper than charging on the road. Home electricity typically costs $0.12 to $0.18 per kilowatt-hour, while DC fast chargers on highways cost $0.25 to $0.50 per kilowatt-hour. Leave with a full charge and minimize road charging when possible.