EV salvage: high-voltage risks to know before you buy a damaged electric car

A totaled electric car can look like a bargain. An EV with damage is a different kind of project from a gas car with the same dents, though.

Nothing here replaces the manufacturer's instructions or proper training. If you aren't trained to work on high-voltage systems, leave them alone.

Why EVs get totaled

Often it's the battery. A 2023 Reuters news report found that for many electric vehicles there's no way to repair or even assess a slightly damaged battery pack after a crash, so insurance companies total cars with few miles on them. A pack can make up as much as half of an EV's price, the report said, which often makes replacing it uneconomical. One insurer told Reuters it had seen scratched packs whose cells were probably fine, and still had to total the cars because it had no diagnostic data to prove it.

So the damage that totaled an EV can be damage nobody measured, and that cuts both ways for a buyer.

High voltage and battery fires

NHTSA's 2014 interim guidance for tow operators and storage yards lists the risks. After damage, fire or flooding:

• assume the high-voltage battery and its parts are energized and fully charged
• exposed wiring and components can give a high-voltage shock, so stay away from the orange cables
• a damaged battery can release toxic and flammable gases, and catch fire immediately or later
• a battery in a flooded vehicle may short-circuit, shock and start a fire

The NTSB found the same problem from the firefighting side. Its 2020 safety report traced the risk of shock and reignition to "stranded" energy left in a damaged battery, and all three crash-damaged batteries in its investigations reignited after firefighters had put the fires out.

So before you buy, plan three things.

1. Where it'll be stored. NHTSA says not to store a severely damaged vehicle with a lithium-ion battery inside a building, or within 50 feet of any structure, vehicle or anything that can burn, and to keep the cabin and cargo area ventilated.
2. How it'll be moved. NHTSA tells tow operators to follow the manufacturer's recovery guide for attachment points and the transport method, and to call an authorized service center or the manufacturer for any extra steps. Book a tow company that has handled damaged EVs.
3. What you'll do if it shows trouble. NHTSA's warning signs are leaking fluids, sparks, smoke, flames, rising heat, and gurgling, bubbling, popping or hissing from the battery. Any of them means calling 911.

Manufacturers file emergency response guides with NHTSA, with information for each model on fire, submersion, fluid leaks, towing and storage. NFPA, which hosted the collection for years, says NHTSA took it over in July 2025, and the guides are at nhtsa.gov/emergency-response-guides. Read the one for the model before you look at the car.

Before you make an offer

A maker can limit what a car with a salvage history can do after it's repaired. Electrek, a news site, reported in 2020 that Tesla had switched off Supercharging on cars registered as salvaged. That was 2020 and policies change, so ask the manufacturer what applies to the VIN, including fast charging, connected services, software updates and warranty.

Then ask the seller:

• where it was hit, and whether anything hit the underside
• whether it charges and shows any warning messages, with a photo of the instrument display while it's on
• whether anyone has looked at the battery, and for the insurance company's estimate or a shop's report
• where it's been stored, and whether it has ever overheated, smoked or been in water
• what comes with it, such as keys or key cards, the charging cable and the account transfer if the maker uses one

On DNF, an EV in the US with a flood brand keeps its state's brand with a high-risk notice, and its Score stays in the Parts only band, as it does for any car with flood or fire damage.

If you plan to rebuild it, the state's rebuilt process applies. Florida's Statement of Builder, for one, lists an EV's traction motor, charge port, DC power converter, onboard charger, power electronics controller, thermal system and battery pack as major component parts, each with its source on record and a receipt from the seller. Ask the inspection site whether it handles EVs and what it'll want to see for the high-voltage system. How state salvage inspections work and the Florida rebuilt title guide go further.

Browse salvage and damaged Tesla Model 3s in the US, Tesla Model Ys or every vehicle across the US. No dealer license is needed to make an offer, though a few states limit who can buy certain salvage or nonrepairable vehicles, and those listings say so.