How reliable is my electric vehicle range for long trips, or should I add a buffer?

[Harper.R]

I’m trying to figure out if my EV’s range estimate is actually reliable for planning longer trips, or if I should just ignore it and add a big buffer. The guess-o-meter seems to change so drastically based on whether I’m using climate control or driving on the highway that it makes me nervous.

[JonathanM]

I treat the range readout as a rough guide. On hot days with the A/C on or when I’m climbing hills, I add a buffer and don’t trust the displayed number completely.

[Mila86]

I’ve watched it swing a lot between highway and city driving. On the highway it seems to drop more slowly, but in town with stops it’s like the meter has mood swings.

[SamuelL]

I tried a couple of trips where I logged what the car actually consumed vs what the display showed. It wasn’t perfect, but it helped me plan to stop sooner if the predicted energy use spiked.

[Anthony.T]

One thing that bugs me: sometimes I wonder if the problem is the estimate or whether the real world is just noisy. Do we really know what we’re planning for, or are we chasing a moving target?