Written Question·Department for Transport·UIN 120279

Electric Vehicles: Batteries

Tabled: 11 March 2026

Answered: 19 March 2026

Question

James McMurdock

Independent — South Basildon and East Thurrock

To ask the Secretary of State for Transport, what estimate she has made of the average lifespan of electric vehicle batteries and the implications this may have for the second hand market for electric vehicles.

Answer

Keir Mather

The latest evidence on electric vehicle (EV) battery lifespans shows that average degradation is much slower than originally expected, with different studies suggesting the average battery retains between 81.6 and 85% of its original capacity after eight ...

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