Hi Wendy
Put your location on the control panel - it some things are easy at different places in the world
Your project
This a big machine - and it's going to be expensive
A first guess would be about 275 watthours/Km- so for 250Km = 68.75Kwatthours
BUT you can't use 100% - 80% is usual so you need about 86Kwatthours
That is a lot
As far as charging is concerned to charge that in 30 minutes would need over 170Kw
a normal house supply is about 20Kw
If I was doing that I would be looking for a wrecked Nissan Leaf to take the motor and controller - you need the whole car to make sure you get all of the bits
PLUS the battery packs out of two other Leafs
Put your location on the control panel - it some things are easy at different places in the world
Your project
This a big machine - and it's going to be expensive
A first guess would be about 275 watthours/Km- so for 250Km = 68.75Kwatthours
BUT you can't use 100% - 80% is usual so you need about 86Kwatthours
That is a lot
As far as charging is concerned to charge that in 30 minutes would need over 170Kw
a normal house supply is about 20Kw
If I was doing that I would be looking for a wrecked Nissan Leaf to take the motor and controller - you need the whole car to make sure you get all of the bits
PLUS the battery packs out of two other Leafs