EV Battery Degradation: What Used Buyers Should Know
Understand how battery age and mileage affect used EV value, and what data you can verify before purchase.
Degradation is normal but uneven
Most EV batteries lose some capacity over time. Loss rates vary by chemistry, climate, and charging habits. High-mileage cars should generally cost less than low-mileage equivalents.
What you can verify without a lab test
Check displayed range at a known state of charge, ask for battery warranty status, and review any available service records. Some brands expose more battery data than others.
Price for uncertainty
If battery health is unknown, factor that into your offer. EV Car Expert's Deal Score helps on price; a pre-purchase inspection or seller-provided battery report helps on condition.