New study crowns the king of EV battery health – and it shows batteries don't degrade as badly as first feared

• Used car broker analyzed battery health of over 1,000 used EVs
• Most vehicles retained a 90% or more of the original battery capacity
• The Kia EV6 showed the least degradation of all models tested

A Swedish used car broker has analyzed the battery performance of more than 1,300 used EVs and plug-in hybrids to determine whether the age and mileage of used electric models should really deter buyers tempted by the cheap prices of the second-hand market.

After all, electric vehicles need very little in the way of maintenance, with the reduction of mechanical parts reducing the risk of wear and tear, meaning battery health – or how much usable capacity the pack has lost over time – is the key concern for buyers.

Used car broker Kvdbil ran a study (via Inside EVs) that essentially analyzed readily-available battery State of Health (SoH) reports on an array ...