Hyundai just topped the world’s largest EV battery study — analysis of 500,000 tests sees it beat Tesla to the long-term battery health title

Hyundai Ioniq 5.

• Analysis of more than 500,000 used EV battery tests reveals long-term health
• The Hyundai Ioniq 5 emerges as one of the strongest performers
• The study also reveals huge variation between individual cars

A new study, which has looked at 500,000 independent EV battery health tests, has revealed which electric cars boast the most battery capacity as they age — and which models suffer the biggest losses over time.