@Pib, thank you for your posts.
i understand that charging speeds at many charging stations are still quite slow and have plenty of room for improvement. this definitely needs to change if thailand wants to advance electric mobility. for occasional long-distance drivers or those who don’t mind having a longer break, the current charging speeds at these stations aren’t really a problem.
you’re absolutely right, high peak charging speed doesn’t mean much on its own. the charging curve is what really matters! charging speed (under ideal conditions) is usually measured from 10% to 80% charging time in minutes . however, this doesn’t tell us how many kwh (or km range) are actually added during that time.
if we know the net battery capacity, we can calculate the average charging power per minute (from 10% to 80%). this makes it easy to compare the charging performance of different electric vehicles, even if they have different battery sizes. however, car manufacturers don’t usually provide this information.
example:
byd sealion 7 (230 kw dc charger)
charging 10-80% takes 24 minutes
net battery capacity: about 87 kwh
calculation: 87 kwh × 70% ÷ 24 min = 2.5375 kwh/min (under ideal conditions with a 230 kw charger).
as a customer, i personally want a car with the latest technology. fast charging is also important because it could help with resale value in a few years. in the future, thailand's charging network will probably change, and tesla might let other cars use its chargers ...