A recently detached battery from a car that had been stored in the parking lot was “quickly identified as having sparked the blaze”,Fire and Rescue NSW said.
Fire and Rescue NSW and Aviation Rescue Firefighting Service extinguished the fire that night.
Experts from the Fire Investigation and Research Unit are continuing to piece together the circumstances of the incident.
Research officers from Fire and Rescue’s Safety of Alternative and Renewable Energy Technologies team have also been at the scene.
Fire and Rescue NSW Superintendent Adam Dewberry said it was rare for authorities to be called for an electric car fire but saw it as an important reminder for people to check their vehicles if there is a fault.
“The cars actually don’t belong to any individual,they’re in a holding yard for a company,” Dewberry said.