Late built 2012 here, got 10.6kwh and 93.7kms or 58.2 miles out of first charge before switching over to gas.
Late built 2012 here, got 10.6kwh and 93.7kms or 58.2 miles out of first charge before switching over to gas.
I have a 2013 (#3197) and on my first complete depletion of the battery I got 10.6 kwh.
IMO this is a silly thread, (other than perhaps the original post's intention) as this topic quite often derails quite quickly into "mine get's xx" where people are attempting to compare apples to apples.
This thread is the exact reason why GM was so reluctant to put a "Kw*hr used" parameter into the instrumentation.
This value is NOT meant to represent a performance metric or a reliable method of comparing one car to another.
Your kW*hr used per trip depends on many factors that include not only the three T's (temps,terrain, technique) but other factors that are related to certain charge efficiencies, even charge settings or usage (such as "cycling" the connector pre-drive to "top-top" charge) as well as user variables such as the use of air-conditioning, remote start, mountain mode, cruise control, or others.
Besides AC and climate settings probably the most blatant variable is the # and duration of regen events. Surely one can see that anyone that has (due to terrain or even traffic controls) the opportunity for more or more extreme regen events is likely going to get more net current flow in and out of the battery and the displayed kw*hr out of that charge as the more events that occur, the more opportunity for the innacuracies/tolerances to "stack up" one way or the other. We make assumptions that it's 1:1 but there will always be some error in this so the more regen, the bigger the error can be.
The kW*hr display is there to assist the driver in analysing their individual energy usage, that is all.
Trying to compare apples-to-apples with other Volts is fruitless (pun intended)
JMO
WopOnTour
Last edited by WopOnTour; 08-13-2012 at 05:12 PM.
*************************************
Follow the Chevy Volt on Twitter! @WopOnTour
When I engage Regen down a hill, I see my kWh go backwards, aso it looks like this is being accounted for. Or is there an additonal amount of regen that is not being subtracted from the total kWh used?
In my 2012 Volt, I can never even get to 10kWh. My range drops to 0, at 9.9. I see the 10% drop each time at either .8 or .9 kWh. I see the same behavior when I drop like grandma, or if I am in Sports mode and quoting another gm-volt member "I drive it like I stole it".
Last edited by WopOnTour; 08-13-2012 at 05:14 PM. Reason: was editing
VIN: C-10318, Crystal Red, Light Neutral Leather
06/01/11 - Deposit placed on a 2012 Volt. | 11/14/11 - ECOtality Installs Blink EVSE | 12/03/11 - Volt arrives home! | 11/26/12 First trip to the gas station due to FMM.
Lifetime Stats - 5,800 mpg | EV Miles: 27,000 | ICE Miles: 139 | EV% 99.5 | Gallons Used: 4.5 | Est Gal Saved: 1174 | $4,402 Saved
EV Range Record: 56.0 miles | Volt Stats | HOF Score: 5
Sure, but the energy flow efficiencies in and out of the battery (whether charging or regen) vary, so my point was that these efficiencies of everything are so variable to numerous factors that unless 2 cars of the same condition (by that I mean age and charge-discharge cycles and charging technique) are driving the exact same route, in the exact same fashion, you wouldnt observe the same kW*hr readout. (and then possibly not "exactly" the same)
The readout is for YOUR use. It is essentially useless to anyone else by means of comparison.
WOT
Last edited by WopOnTour; 08-13-2012 at 01:53 PM.
*************************************
Follow the Chevy Volt on Twitter! @WopOnTour
Do you find it unusual that I cannot get more that 9.9 kWh on a full charge? Or could it be just that this is just how MY Volt is reporting the usage and if another Volt drove the exact same route I did in the same manner, it could possibly report 10.1 or 10.2 to depletion where mine would report 9.9?
VIN: C-10318, Crystal Red, Light Neutral Leather
06/01/11 - Deposit placed on a 2012 Volt. | 11/14/11 - ECOtality Installs Blink EVSE | 12/03/11 - Volt arrives home! | 11/26/12 First trip to the gas station due to FMM.
Lifetime Stats - 5,800 mpg | EV Miles: 27,000 | ICE Miles: 139 | EV% 99.5 | Gallons Used: 4.5 | Est Gal Saved: 1174 | $4,402 Saved
EV Range Record: 56.0 miles | Volt Stats | HOF Score: 5
Now you're getting it!
There is nothing abnormal about consistently getting a report of 9.9kW*hr across any number of trip cycles, especially if you did everything consistently in terms of charging and those trips were similar in terms of TTT.
WOT
EDIT> Here's a very good older thread that discusses some of the variables that can affect the KW*hr value displayed
http://gm-volt.com/forum/showthread....ht=kwh+display
Last edited by WopOnTour; 08-13-2012 at 05:17 PM.
*************************************
Follow the Chevy Volt on Twitter! @WopOnTour
OP here. My intent was to collect info from a small sample size to see if, over a limited drive time what people were getting from the new chemistry battery. WopOnTour makes a good point that we drive under different circumstances, but I was looking to see if the average '13 got more kWh than the previous models. I know it would only be a loose estimate, but information I thought would be helpful to the group as a whole.
I got 10.9 kWh today on my 2013.
Bookmarks