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I often read/hear about what an EV is capable of (0-60, 1/4mile, etc.,) with the disclaimer "at full battery" or some similar derivative. How much does the battery's charge percentage really affect its performance? For instance, whether an ICE vehicle has a full tank of gas or a 1/8 tank of gas, other than the weight savings, most of its performance will remain relatively unchanged. How big is the difference in performance between an EV with say 100% charge and 25% charge?
My ex girlfriend had a Model 3 dual motor. The thing was a blast to drive! It was supposed to have a range of something like 350 miles but we were lucky to get 250 miles out of it. We both had a tendency to mash the throttle pedal every chance we got which decreases the range.
To answer your question though, it seemed to have equal performance not matter how much charge was left although never did any actual timed tests.
The bigger thing with the less well engineered EVs like a Tesla is the back to back performance. If you stomp on it multiple times in a row, the batteries get too hot and performance drops drastically. Stuff like the Taycan has a lot of engineering into making them consistent in performance.
I often read/hear about what an EV is capable of (0-60, 1/4mile, etc.,) with the disclaimer "at full battery" or some similar derivative. How much does the battery's charge percentage really affect its performance? For instance, whether an ICE vehicle has a full tank of gas or a 1/8 tank of gas, other than the weight savings, most of its performance will remain relatively unchanged. How big is the difference in performance between an EV with say 100% charge and 25% charge?
I have not tested it personally, but one online reviewer did, and found that at 70%+ the EV6 GT like one I drive will do 0-60 in 3.2-3.4 seconds. At 50%, this drops to about 3.5 to 3.6 seconds, and by 25% SoC, it's about 3.9 seconds.
My ex girlfriend had a Model 3 dual motor. The thing was a blast to drive! It was supposed to have a range of something like 350 miles but we were lucky to get 250 miles out of it. We both had a tendency to mash the throttle pedal every chance we got which decreases the range.
To answer your question though, it seemed to have equal performance not matter how much charge was left although never did any actual timed tests.
People can't really tell how fast cars are by seat of the pants. You need a clock for that. I remember back in the day I told people Mazda tuned the CX5 turbo to pull all boost in 1st and 2nd in cold weather, resulting in 0-60 times of about 10 seconds instead of the usual 6 seconds. Everyone argued except those who put it on a clock and said "WOW! He's right!". Mazda later came out with a TSB for it. That taught me just how inadequate people's perceptions were at gauging things like acceleration.
I have not tested it personally, but one online reviewer did, and found that at 70%+ the EV6 GT like one I drive will do 0-60 in 3.2-3.4 seconds. At 50%, this drops to about 3.5 to 3.6 seconds, and by 25% SoC, it's about 3.9 seconds.
Thank you. How are you liking the EV6? It definitely caught my attention.
Decided to test this myself. First run is at 85% with the battery optimally conditioned. Second run (different day) is at 34% with the only "conditioning" the battery saw, being about a 45 minute drive.
So, about a half second and 6mph trap speed drop at the end of the quarter, and a 0.2 second longer 0-60 difference from the near top to the near bottom of the sensible charge range.
Thanks for doing some testing. So from a racing standpoint, it would be wise to keep the SoC high. I wonder if the power loss is linear. For example; a loss of .1et/1mph per 10% SoC drop. Yours pretty much worked out that way, but that could also just be coincidence.
Thanks for doing some testing. So from a racing standpoint, it would be wise to keep the SoC high. I wonder if the power loss is linear. For example; a loss of .1et/1mph per 10% SoC drop. Yours pretty much worked out that way, but that could also just be coincidence.
02-14-2023, 02:01 PM
EV Performance Question (Battery %)
