Getting Your Electric Vehicle Ready for Hurricane Season

What to do with your EV before a hurricane hits

An electric vehicle needs different preparation than a gas car when a hurricane is coming. Your main concerns are battery charge, water damage to the electrical system, and being stranded without power to charge. The steps are straightforward: charge to full or near-full capacity, move the car to higher ground if possible, disconnect it from any charging equipment, and know where you can charge if you need to evacuate.

Unlike a gas car, you cannot simply top off your tank an hour before the storm. Charging takes time, and the power grid may go down. Start charging as soon as you hear a hurricane warning for your area — not when evacuation orders begin. If you wait until the last moment, you may find charging stations overwhelmed or without power.

Key Takeaways

• Charge your EV to full capacity as soon as a hurricane warning is issued for your area, because charging stations may lose power or become unavailable.
• Move your vehicle to higher ground away from storm surge and flooding zones if you have time, since water damage to the battery and electrical system can total an EV.
• Disconnect the charging cable and turn off any scheduled charging features before the storm arrives to prevent electrical damage from power surges.
• Keep your vehicle's location and battery level documented in case you need to prove the damage to your insurance company after the storm.
• Know the location of at least two charging stations outside your evacuation zone in case you need to charge during or after the hurricane.

Charging your battery before the storm arrives

Charge your EV to 100 percent as soon as a hurricane warning is posted for your county. Do not wait for an evacuation order. Charging networks become congested quickly, and if the power grid fails, public chargers will not work. A full battery gives you the range to reach a safe location, find a hotel, or reach family outside the storm zone.

If you have a home charger, plug in immediately and let it run overnight if needed. If you rely on public charging, go to a station during daylight hours when you can monitor the charge. Avoid waiting until evening or the night before the storm, when stations are busiest and chargers may malfunction from the surge in demand.

Some EV owners worry that a full charge stresses the battery during a hurricane. Modern EV batteries are designed to hold a full charge safely for extended periods. The risk of being stranded without power outweighs any minor battery stress from sitting at 100 percent for a few days.

Moving your vehicle to higher ground

If you have time and a safe route, move your EV away from flood zones and storm surge areas. Water is the single biggest threat to an electric vehicle. Saltwater from storm surge corrodes the battery pack and electrical connectors faster than freshwater. Even a few inches of water can short the high-voltage system and make the car undrivable.

Identify higher-ground parking before the warning is issued. This might be a parking garage on the second level or higher, a friend's driveway in an inland neighborhood, or a parking lot on elevated terrain. If you are evacuating, drive to your destination and park there. Do not leave your EV in a parking lot near the coast or in a known flood zone.

If you cannot move the car, park it in the safest spot available on your property — away from trees, power lines, and drainage areas. Leave the windows closed and the doors locked. Do not park under a carport or awning that could collapse in high winds.

Disconnecting charging equipment and disabling automatic features

Unplug your home charger or disconnect the charging cable from your vehicle at least 24 hours before the storm is forecast to arrive. Power surges from lightning or downed power lines can damage the charger and the vehicle's onboard charging system. If you have a hardwired home charger, turn off the circuit breaker that powers it.

Check your vehicle's settings for any scheduled charging or climate control features. Some EVs are set to precondition the battery or warm the cabin at specific times. Disable these features so the car does not draw power unexpectedly during the storm. Turn off any remote access or app-based features if your vehicle has them, since unstable cellular service during the hurricane can cause communication errors.

Leave the vehicle in Park and make sure the parking brake is engaged. Some EVs have a feature that keeps the 12-volt battery charged even when the main battery is off. This is fine — the 12-volt system is much smaller and will not drain significantly over a few days.

Protecting your EV from wind and falling debris

A garage is the safest place for your EV during a hurricane. If you have access to one, use it. Close the garage door and leave the vehicle in Park with the parking brake set. Do not run the engine or charger while the door is closed, since that creates a carbon monoxide hazard — though this is less of a concern with an EV than a gas car.

If a garage is not available, park under a sturdy structure like a carport or covered parking area, as long as it is not likely to collapse. Avoid parking under trees, even if they look healthy. High winds can snap branches or topple trees onto your vehicle. Do not park near power lines, transformers, or utility poles.

If you have no covered parking, park in an open area away from structures and trees. A dent or broken window is repairable; a flooded battery is not. Open parking is safer than a risky shelter.

What to do if you are evacuating

If you are ordered to evacuate, charge your EV to full before you leave. Plan your route to avoid flooded areas and know which roads are likely to close. Use your vehicle's navigation system to identify charging stations along your route and at your destination, but do not rely solely on the app — download offline maps in case cellular service fails.

Bring your vehicle registration, proof of insurance, and photos of your EV in good condition. If the car is damaged during the hurricane, you will need these documents for your insurance claim. Store them in a waterproof bag in your vehicle or take them with you.

If you are stuck in traffic during evacuation, monitor your battery level. If you are approaching a low charge and traffic is not moving, turn off the climate control and reduce the use of headlights to extend range. Most modern EVs will alert you when the battery is low and show you nearby charging stations.

After the hurricane: checking for damage

Before you drive your EV after the hurricane, do a visual inspection. Look for water inside the cabin, under the car, or around the battery pack. Check that all lights work, the doors open and close normally, and there are no unusual smells — a burning or chemical smell means electrical damage.

If your vehicle was exposed to saltwater or deep flooding, do not drive it. Contact your insurance company and a certified EV repair shop. Water damage to the battery or high-voltage system can cause fires or sudden loss of power while driving. The repair may be expensive enough that your insurance company declares the vehicle a total loss.

If the car appears undamaged but will not charge, do not force it. Plug it in at a public charger and wait a few minutes. If it still will not charge, unplug it and contact your vehicle's roadside assistance service. Charging system damage is common after storms and requires professional diagnosis.

Frequently Asked Questions

Can I drive my EV through floodwater?

No. Even shallow water can damage an EV's battery and electrical system. Water conducts electricity and can short the high-voltage system, leaving you stranded or creating a fire risk. If the road is flooded, turn around and find another route.

What if the power goes out and I cannot charge my EV?

A full charge before the storm gives you several days of range for essential trips. After the storm, charging stations may come back online before your home power does. Look for stations in areas that have restored power, or ask neighbors with generators if you can charge at their home charger.

Will my EV battery drain if I do not drive it during the hurricane?

Modern EV batteries lose only 1 to 3 percent of charge per week when the car is parked and off. A full battery will retain most of its charge over several days, even during a hurricane.

Should I leave my EV plugged in during the storm?

No. Unplug it at least 24 hours before the storm arrives. Power surges from lightning or downed lines can damage the charger and the vehicle's electrical system. A fully charged battery is safer than a plugged-in car during a hurricane.

What if my EV gets damaged by the hurricane — will insurance cover it?

Comprehensive insurance covers hurricane damage, including flooding and wind damage. Collision insurance does not. Check your policy before the storm. Document your vehicle's condition with photos and keep your registration and proof of insurance accessible for your claim.