GM Volt Forum banner

EV Range limit is only 86 miles?

9746 Views 51 Replies 27 Participants Last post by  Runion
I've had back to back 90-199 miles per full charge and yet my EV Range from the GOM never exceeds 86 miles after full charging that follows. Has anyone here started out with an EV Range of more than 86 miles?

Volt86 by Joe Real, on Flickr
See less See more
1 - 8 of 52 Posts
I've had back to back 90-199 miles per full charge and yet my EV Range from the GOM never exceeds 86 miles after full charging that follows. Has anyone here started out with an EV Range of more than 86 miles?
You are claiming you got 90 miles from a full battery on one trip and 199 miles from a full battery on a second trip?
I think there is more to the story that Joe has not divulged yet. Let's give him a chance to explain before name calling, etc.
I'd like clarification for the questions I asked, Joe
I have explained this one in some other threads on how to achieve what seems to be impossible. I demand apology from the insults hurled at me.

I have explained in part how I achieved 499.61 miles in a single day and made it to number 1 in VoltStats, but none of you cared anyway.!
Sure, but that's why I asked what I asked. I knew people would want to know what is behind the number. Ignore that basic curiosity and your post will be viewed with some skepticism. And it was.

Thanks for clearing that up.

Hypermiling, recharging many times during the day, driving downhill can all help to achieve EV miles that exceed the battery range. And that seems to be what you did.

In answer to your question, no the highest I have seen on my car is 50 miles, it's also a gen 1, and I was simply looking for how far I could go on a single charge, flat ground, no multiple recharges.
Thanks, and I was just confirming for my 2017 Volt that the upper limit in the instrument panel display would seem to be 86 miles even if you regularly drive more than that via hypermiling, elevation changes, mountain mode combos.
Right, you have proven the display wont show higher numbers based on an "artificial" range built on multiple recharges, etc.
My record of 199 miles for a single charge has no external charging, as I have used 14.1 kWH shown in the DIC. But it was from the highest elevation that I can find, drove like a grandma in the windflow level road, then when battery was depleted, drove downhill at optimal speed for regen, and when the battery nears full from the regen drive level road again and repeat the process. The overall conversion efficiency of potential energy from elevation change to regen is approximately 75% and by driving carefully I didn't lose anything to friction braking. My record can be beaten if a higher elevation can be found to start driving.
The 75% recapture from regen seems to agree with GM statements in the past.

Going 199 miles on a single charge can be misleading without knowing it's really 199 miles with lots of coasting/regen down a mountain road. A bit like loading the fully charged car into a rocket, shooting it around the moon, bringing it back to earth, and claiming the car traveled thousands of miles on a single battery charge. It did technically, and it didn't in the way most people would travel on a charge.

In both cases, the energy it took to get to those heights and make the claims is not accounted for. The regen/recapture traveling downhill is recovering what? The energy it took to go UP the mountain. No free lunch.

Same with orbiting the moon. It took a lot of energy to boost the car into orbit. So both claims, to be accurate, should account for the energy used to go uphill in order to go downhill. I suspect a net energy loss in both scenarios. The 75% regen recapture suggests that at least 25% of the energy it took to go up the hill was lost going down.

If gas was used to go up the hill, it's even worse. Gas engines are only 25% efficient at best, wasting 75% as heat and noise. But maybe I am all wrong. How did you get up the hill to do your downhill, record setting "199 miles on a single charge"?
See less See more
Charge at the bottom, charge again at the top. It wouldn't be too hard to do up in the Sierras going up I-80, around Lake Tahoe, and down U.S. 50 - then along the foothills. Lots of L2 available along the route. Pretty nice scenery too. Much better than driving around a football stadium.
Sure, my point is you have to include all the charges (gas and or electric) that got you to the top. If it took two charges to get 199 miles on "one" charge, well, it's not really one charge is it? Again the regen going down is recovering energy it took to get you UP to the top. No free lunch, no perpetual motion machine.
It sounds like you can indeed do xxx miles a day under extremely far from normal driving circumstances. This is creating and establishing a record of a far less than practical thing to do. Maybe Guiness will recognize this? This is all OK, I suppose, and it is even mildly interesting. Sort of like a modern day Mobil Economy Run, but far more rigged for impressive results.
Just make a giant, 200 mile long ski slope for a car. Airlift the car to the top and let it glide to the bottom. ICE or BEV, it doesn't matter. Both would use zero gas or electricity for 200 miles. Impressive results to boast about, or simply a rigged stunt?
1 - 8 of 52 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.