Does fast charging damage the EV battery?

Yes, frequent fast charging may cause an EV battery to crack, leak, and lose storage capacity over time. Fast charging, which happens at DC Fast Charging Stations (DCFC), operates at higher power ratings than Level 1 and Level 2. Compared to Level 2 charging, DCFC subjects EV batteries to high temperatures and resistance. How much depends on several factors, including how thick your charging cables are and whether your EV battery pack is outfitted with a thermal management system.