Does anyone know what batteries these are fitted with as if they have the 275 mile battery I'm not totally conviced this is fixable at all.

The example above, is giving a total of around 200 mile a day, in real world terms, which isn't totally unrealistic on cold days (it's generally reported as 30% less on EV Cars) and no-one is getting the top range regardless unless you run it to empty, everyone drives perfectly and are running at city speeds which isn't the 21.

https://bustimes.org/vehicles/gnel-6152?date=2026-02-02 - Picking a board like that, which is one of the shorter ones, you're looking at round 200 miles (using 10 miles for a CLS run, 15 miles for a Durham and 20 miles for Brandon).

Who knows, but I wouldn't be surprised if someone has made a huge cock up here.

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For a side note the longest 63 board at Redcar is 195 mile roughly, the same 63 which uses single deckers which have a longer range, and Arriva ditched due to range issues...