Kermit
Posts: 53
Joined: Mon Feb 04, 2019 10:47 am

Questions and Data tracking

Fri Mar 01, 2019 10:16 am

Update: I wanted to update this post to ask a few clearer questions and share my experience with owning this car and using Torque Pro for the past week.

I tried using Enginelink and it showed a handful of useful gauges when loading the Bolt PIDS but the layout was not very configurable and the units were in Celsius so I ended up going with Torque pro. I have both so was able to compare them side by side and would point everyone towards Torque pro like many others on this site have. The Volt PIDS did not work right with Enginelink and showed numbers that were wrong and had percentages over 100%.

It appears the battery percentage is very close to the 10 lights; i.e. 6 lights is 60-69% charged. This helps me know when to charge it. I have also been calculating how much time it takes to charge with 8 amp and 12 amp so I can keep it between 50-80% charge.

Upon using Torque Pro and figuring out you can add as many decimal points as you desire I found it useful to expand out the battery capacity to 13 decimal points as that's how many the car will display. This can help follow the battery degradation more closely.

What other data points should I try to keep track of in the long term besides Mileage and Battery Capacity?

When we received our car the trip meter appeared to have never been reset so the lifetime mi/kwh is 11.7. I can not get more than upper 7 mi/kWh.
Is it possible to get it that high? With torque pro I was able to see the codes were reset about 5,800 miles ago. That's still a lot of miles to have that high of an average from my experience. Any thoughts on this?

Thanks
2016 Spark EV

NORTON
Posts: 1230
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: Questions and Data tracking

Fri Mar 01, 2019 3:32 pm

Kermit wrote:
Fri Mar 01, 2019 10:16 am
....

When we received our car the trip meter appeared to have never been reset so the lifetime mi/kwh is 11.7. I can not get more than upper 7 mi/kWh.
Is it possible to get it that high? ..... Any thoughts on this?

Thanks
These mi/kWh numbers are unbelievable, at least in my experience. :roll:

"How slow can you go?", in your best deep voice.

Try 3.2 mi/kWh on a single digit temp day, heat set to a nice temp and cruising with your best buds in the left lane at 80 mph, into a headwind....

I suppose you can achieve +7 mi/kWh, but is that a race to the bottom?
A bicyclist blows you off for the first half mile, after a stop sign and then you pass them with the cruise control set to (?) 27 MPH?
How many pennies are you saving driving that slow?

You're already driving one of the least expensive cars in terms of $/mi.

My question: Have you punched it? :!:
Press the Go Pedal all the way down!!
But hold on to the wheel with both hands !!! :D
Used '14 2LT w/ DCFC. +71 K miles.
Mostly free charging! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.
3 step Trouble Tree, 2nd guess not covered by warranty and cost $800. 3rd guess fixed the problem.

Kermit
Posts: 53
Joined: Mon Feb 04, 2019 10:47 am

Re: Questions and Data tracking

Fri Mar 01, 2019 5:48 pm

I've definitely pushed it all the way down it is very fun! I usually just cruise a constant speed to work 30-40 MPH to avoid stopping at the red lights. I was just confused by how the lifetime number could be so high since no matter what I do I can't even get close.

I'll be keeping track of my battery capacity closely just to keep track of degradation over time (it's currently 16.2667 kWh with 12,700 miles) but my commute is not more than 18 miles round trip so I'm hoping it will last for a decade maybe two?

Do you guys keep track of your kWh or any other info?
2016 Spark EV

NORTON
Posts: 1230
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: Questions and Data tracking

Sun Mar 03, 2019 7:32 am

Kermit wrote:
Fri Mar 01, 2019 5:48 pm
...Do you guys keep track of your kWh or any other info?
I just track the calculated kWh capacity of the pack, and not very often anymore. Not even once a month this time of year.
But I do also add outside temp and trip mi/kWh, but I don't know what I'll do with this extra data....

Even if you gather data weekly and put it into a spread sheet you'll see variations. Look at some of the graphs that people have generated with this data. Lots of ups and downs.

Your use of the car is very gentle. Good luck plotting degradation. It will be a very long term project it sounds like!
Used '14 2LT w/ DCFC. +71 K miles.
Mostly free charging! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.
3 step Trouble Tree, 2nd guess not covered by warranty and cost $800. 3rd guess fixed the problem.

scrambler
Posts: 135
Joined: Sat Jan 14, 2017 4:11 pm

Re: Questions and Data tracking

Sun Mar 03, 2019 9:55 am

And if you use the energy dashboard % and kwh used, don't take these numbers if you have had partial recharge during that period.
I noticed that when you do, results can be off

TheLondonBroiler
Posts: 186
Joined: Tue Oct 31, 2017 6:25 am

Re: Questions and Data tracking

Sun Mar 03, 2019 12:24 pm

Kermit wrote:
Fri Mar 01, 2019 5:48 pm
I was just confused by how the lifetime number could be so high since no matter what I do I can't even get close.
I'd bet money that the "range estimation correction," recall was done recently with some miles having been put on it afterwards, prior to your purchase. After the recall/update, your average efficiency on the dash instrument cluster screen will read 51.1 miles per kwh, which will obviously be reduced, unless you only use the Spark to drive down mountains, and then have it towed back up....

Image

Kermit wrote: my commute is not more than 18 miles round trip so I'm hoping it will last for a decade maybe two?
If your Spark EV can't serve this purpose for a decade, I'd be EXTREMELY shocked.
Kermit wrote: Do you guys keep track of your kWh or any other info?
I screenshot my capacity when there is a displayed change. I spend at least ~1.5 hours (62 miles) roundtrip commuting M-F, and I almost always take a peak at it daily. Strange, after it always falling once or twice a week (always minimal except one noticed 0.8kwh drop), it has stopped at 14.06kwh, and has stayed there for nearly two months. I fast charge A LOT. If you glance at plugshare dcfc check ins, in Charlotte, NC you'll probably laugh (and I only check in if I plan on spending more than 10 min at the station, which isn't always).
2015 Spark EV w/ DCFC 46,XXX miles
Purchased 1/20/18 w/ 16,5XX miles
2019 Bolt EV w/ DCFC 15,XXX miles
Purchased 3/16/19 w/ 87 miles

Kermit
Posts: 53
Joined: Mon Feb 04, 2019 10:47 am

Re: Questions and Data tracking

Wed Mar 20, 2019 7:46 am

I'll be resetting the trip meter today to track my kWhs. I did my second charge to 100% last night (a month after the first time) and I got a GOM reading of 98 miles at 100%. I've been getting between 4.9-11kWh on my trips but mostly averaging 5-7kWh most days. I rarely jump on the interstate so my driving is usually less than 40 MPH. The battery capacity has not dropped in the first month of owning the car according to readings from Torque Pro. I have been leaving the car between 70-50% charge for my daily commute and charging by Level 1 charging at both 8 and 12 amps.
2016 Spark EV

MrDRMorgan
Posts: 977
Joined: Wed Oct 30, 2013 7:27 am
Location: Manteca, California

Re: Questions and Data tracking

Wed Mar 20, 2019 8:49 am

Kermit wrote:
Wed Mar 20, 2019 7:46 am
I'll be resetting the trip meter today to track my kWhs. I did my second charge to 100% last night (a month after the first time) and I got a GOM reading of 98 miles at 100%. I've been getting between 4.9-11kWh on my trips but mostly averaging 5-7kWh most days. I rarely jump on the interstate so my driving is usually less than 40 MPH. The battery capacity has not dropped in the first month of owning the car according to readings from Torque Pro. I have been leaving the car between 70-50% charge for my daily commute and charging by Level 1 charging at both 8 and 12 amps.
It would be quite interesting to see the trend of your battery capacity measurements over the next few months as measured using TorquePro, . Both my 2014 and 2016 Spark EVs have shown a drop in battery capacity since the beginning of October of last year. The 2014 has dropped 0.6 kWh and the 2016 has dropped 0.9 kWh. Both cars only have about 17,500 miles on the ODO. My 2014 does not have the DCFC option but my 2016 does and I use DCFC a few times per month.

Kermit
Posts: 53
Joined: Mon Feb 04, 2019 10:47 am

Re: Questions and Data tracking

Tue Apr 23, 2019 10:40 am

[Updated with previous numbers and current numbers]
I wanted to post my data in case anyone is interested in how it is tracking. April
Previous Charge to 100% was 98 miles. This charge to 100% and the GOM is up to 108 miles.
Previous Charge to 100% kWh was 16.066676. This charge to 100% and the kWh actually went back up a bit to 16.2000 kWh (odometer is at 13,316). The average was 6.5mi/kWh this past month and I used 65.8kWh over 429 miles.

Fuel is $2.43/ gallon here now and electricity is $0.074 per kWh so I am getting about 156 miles out of what it costs for a gallon of gas right now (after assuming 75% efficiency of the electricity actually into the battery.)

219.5 MPGe 1 Gallon of Gas = 33.7kWh

The kWh capacity went up according to Torque Pro probably due to the weather?

Image
Last edited by Kermit on Fri Jul 12, 2019 10:01 am, edited 2 times in total.
2016 Spark EV

Kermit
Posts: 53
Joined: Mon Feb 04, 2019 10:47 am

Re: Questions and Data tracking

Tue May 21, 2019 7:56 am

Data from this month's 100% charge (May.)
Previous Charge to 100% was 108 miles. This charge to 100% and the GOM is at 107 miles.
Previous Charge to 100% kWh was 16.2000. This charge to 100% and the kWh went back down to 16.03333 kWh (odometer is at 13,692). The average was 6.9 mi/kWh this past month and I used 54.3 kWh over 375.6 miles.

Fuel is $2.57/ gallon here now and electricity is $0.074 per kWh so I am getting about 179.2 miles out of what it costs for a gallon of gas right now (after assuming 75% efficiency of the electricity actually into the battery.)

232.5 MPGe 1 Gallon of Gas = 33.7kWh
Last edited by Kermit on Fri Jul 12, 2019 10:02 am, edited 1 time in total.
2016 Spark EV

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