EV battery warranty in 2025: what's actually covered
Most EV makers warrant the high-voltage battery for 8 years or 160,000 km, covering capacity loss below ~70%.
The industry standard for high-voltage battery warranty is 8 years or 160,000 km — whichever comes first. The covered failure is normally either total pack failure or a measured capacity drop below a defined threshold (commonly 70%, sometimes 75% on premium brands).
Things that typically void or reduce battery warranty: non-OEM repair on the HV pack, third-party software flashes that change BMS limits, water ingress from off-road use, and consistent fast-charging at temperatures outside the OEM's specified range.
The single most useful artifact for any future warranty claim or resale is a recent State-of-Health (SoH) report in the OEM format. EVLAB runs OEM-grade scan tools and produces an SoH report that documents pack capacity, individual cell deltas, thermal behavior, and BMS event history — exactly what an authorized service center will want to see.