Question to the Department for Transport:

To ask the Secretary of State for Transport, what steps she is taking to help improve customer confidence in battery performance when buying used Euro 6 compliant electric vehicles.

The Zero Emission Vehicle Mandate and the recently announced Electric Car Grant require manufacturers to provide a warranty of 8 years or 100,000 miles on EV batteries. In comparison, new petrol or diesel cars usually come with a 3-year warranty.  Moreover, during the warranty period, if the battery capacity drops below 70% for cars or 65% for vans, the manufacturer must provide a replacement battery.

The UK has worked with international partners at the United Nations Economic Commission for Europe to develop a Global Technical Regulation on EV batteries (GTR No.22). If implemented, this regulation would ensure that EVs provide easily accessible, accurate, and comparable information on the battery’s state of health. The Government is analysing options for the implementation of GTR No.22 regulations in the UK.