Do electric car batteries lose charge if not used for a period of time?

I live in the London suburbs and drive 5000 miles per year (mostly in London with most return journeys no longer than 130 miles) so I am thinking about an electric car when I replace my current car. My question is about whether the car batteries will lose charge over time if I leave my car in an airport car park for two weeks while I am on holiday. Could this potentially leave me with not enough charge to get home?

Asked on 22 October 2019 by Mark Bullock

Answered by Andrew Brady
Yes - it's known as 'vampire drain' in EV circles. The amount of charge that'll be lost depends on the vehicle but I wouldn't have thought it'd be a considerable amount over two weeks. I wouldn't expect an electric car to lose more than one per cent of battery capacity per day when parked up.
Similar questions
I'm thinking of buying a Tesla but wonder if a PHEV would be more flexible on longer journeys. I'm also concerned about Tesla’s depreciation and cost of replacement batteries. If you could give me a steer...
How do you think motorway services will cope when, let's say, 50 per cent of cars on the road are electric? Will they ever have enough charge points for everyone?
I'm almost at point of purchase of a new vehicle to replace my ageing, although utterly reliable, Citroen C5. I find myself wanting to do the eco thing by buying an EV, yet I am somewhat sceptical about...

Ask Honest John

Value my car