Should leave my car running on my drive to keep the battery charged?

I haven't used my 2018 Ford Fiesta for three weeks now and probably won't be using it for a few weeks more. Should I start it up on my drive and leave the engine running to keep the battery charged?

Asked on 8 April 2020 by Biffer

Answered by Dan Powell
I don't think starting up the car for short periods will help the vehicle. The battery will be drained and the oil will not reach optimum operating temperature - which will increase engine wear and tear. For general coronavirus car storage advice, see:
Similar questions
What make of trickle charger would you recommend to keep a car's battery topped up during the current lockdown. I'd prefer a type which operates through the cigarette lighter socket.
I have SORN'd my Jaguar F-Pace during the Coronavirus pandemic. Besides turning the engine over once a week, what else can I do to ensure the efficiency of the vehicle?
My Volkswagen Golf was due for its service on 8 April. This was cancelled as the garage is closed. They will contact me to rearrange. I'm concerned that the oil needs to be changed as it's 13 months old....
Related models
Most versions good to drive, especially ST-Line but significantly more refined. Comfortable and practical. Comes with active safety technology as standard.

Ask Honest John

Value my car