I have an Electric Univer card by Octopus Energy, I think it’s the same thing. I have just charged to100% so I will let the battery fall to around 50/60% then go and seek one out. I think it has a tenner on it. Being mean I will only charge a couple of kWh, it’s a question of knowing how to do it. And actually, after more than 3 months have not had to use a public charger at all.