EV batteries are essential infrastructure, says Generational

Electric vehicle battery condition transparency is becoming essential infrastructure, claims a new report from Generational.

The white paper aims to support decision making across the industry, across policy-making, valuation, underwriting, warranty design, fleet management and remarketing. 

Generational is a UK-based innovator in electric vehicle battery testing solutions. Its mission is to support a healthy used EV market by creating transparency into battery condition – helping businesses trade more effectively and helping buyers choose a used EV with confidence.

Generational 2025 Battery Performance Index is the UK’s largest analysis of EV battery condition conducted to date, based on 8,000+ battery health assessments conducted in 2025 across BEVs and PHEVs, passenger cars and LCVs, spanning 0 – 12 years and 0 – 160,000+ miles. 

Example findings from the 2025 data:

• Average battery health: 95.15% across all vehicles tested. 
• Even 8–9-year-old vehicles show ~85% median capacity, comfortably above common OEM warranty thresholds (typically 70% SoH). 
• Mileage alone is not a reliable predictor: vehicles with 100,000+ miles often return 88–95% battery health.