We've had an issue with the big Skoda as it took over 2 days to fully charge last weekend, having done some fault finding, plugging in the car to another wall box when the ambient temperatures were above 10c it had the same slow charging issue.

Back to the dealer today to diagnose the issue and a faulty high voltage charger was diagnosed and ordered under warranty.

during our ownership its been on the public network less than 5 times in 7 months

My queries are;

how did this fail in the first instance and how can this be avoided. Could it have been caused by a power spike?