There are many free EV charging points available around the UK. To find where these free charging points are you need to take a look at Zap-Map Live (available as an app or as a desktop version).
Make sure to ‘filter’ your results by ‘Payment’ and apply the ‘£ Free to Use’ filter. This will give you a map of the UK full of free EV charging points in the UK. It is worth noting that the majority of fast and rapid chargers will require payment.