From my reply to your other message about the same topic:
Try an experiment:
Full charge the battery
Take the car out at night on a cool day that you don't need the AC, just open the front windows and crack a back window
Drive on roads with no traffic that are no more than 40 miles an hour and don't have a lot of stops, accelerate very gently in "normal"
See how far you can go on battery either until the battery runs out and it switches to ICE or you just get tired of the experiment
If you didn't go all the way to 0% battery, then use the smart phone app to check your final battery percentage before you plug in at home again and do a cross multiply (remember 6th grade Algebra) to calculate what you would have gotten for total battery mileage if you went all the way to 0% battery
I almost never show above 34 miles, and I did this experiment. I drove for 17 miles until I was tired of the experiment, but with the remaining 65% battery percentage, I was on track to do close to 49 miles on that charge. The route I took ended up having a lot of stop signs, so I am sure it would have been over 50 on more rural roads.
It put my mind to rest.
I think the calculation for the miles on the battery is complicated and conservative, and what really matters is how many miles can you actually get on a charge, not what it predicts you will get.
Originally Posted by rmalzo
Volt #947 Delivered on 2/25/11 -- Sold!
240V Blink Installed 10/28/11 -- Returned!