Ford Kuga PHEV battery drain problem

I have a one year old Ford Kuga PHEV. I retired 6 months ago and don't do the mileage I used to. After some problems with the regular 12v battery going flat and locking me out of the car etc. I am now being told I need to drive the car more using the petrol engine rather than electric to charge the battery. I can find nothing mentioning this on Ford sites and was not told any of this by the dealer.

Asked on 9 March 2022 by Jerry Bracey

Answered by Dan Powell

Unless the car is left standing for weeks at a time, this shouldn't be happening.

I would expect the dealer to replace the battery in the first instance, as it may be a faulty 12V battery.

If the problem persists, I'd demand a diagnostics check to see if there is a problem with parasitic battery drain - but make sure this test is carried out when the car is connected to a wallbox and again when it is unplugged from the power supply (as I have heard of parasitic battery drain cases when PHEVs are plugged into a Type 2 charger).

If that doesn't fix the problem, let me know and HonestJohn.co.uk will be happy to speak to Ford UK on your behalf.

Tags: phev batteries

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