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Electric Vehicle Batteries research released

Electric Vehicle Batteries research released

New research released today shows electric vehicle (EV) batteries are reliable and long-lived.

As part of the Government’s electric vehicle information campaign, the Energy Efficiency & Conservation Authority (EECA) commissioned the independent report into electric vehicle batteries. The report is by Verdant Vision, an Australia-based electric vehicle consultancy, which also co-authored the EV lifecycle analysis.

The research, and a guide based on it, will give owners valuable information about their vehicle’s battery. It will also give confidence and be a useful resource for people considering buying an electric vehicle.

“Electric vehicle batteries are an impressive technology and not everyone realises how long-lived and reliable they are,” said EECA Transport General Manager Elizabeth Yeaman.
Manufacturers’ confidence in these batteries is shown by the warranties they offer – now up to ten years on some vehicles.

“This report will help owners look after their batteries to get the most out of them. It will also help inform people considering purchasing an electric vehicle.”

The report found:
Electric vehicle batteries are designed to drive and recharge for many years, with high reliability, and may well last the life of the vehicle.

Most new electric vehicles have extensive battery warranties, and electric vehicle owners can expect batteries to last well beyond the warranty period.

Sudden electric vehicle battery failure is very rare, and more likely is that owners may notice slight degradation over time.

There are some simple tips EV owners can follow to maximise the life of their battery.

To read the full report go to and click on the electric vehicle battery life link in the menu.

For general information about electric vehicles, see

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