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Re: 17.1 kWh @ 20,000 miles

Posted: Fri Jan 06, 2017 10:40 pm
by NightHawk
I believe batteries provide more total energy to empty if a lower discharge current is used, so running a test with high load like the heater might yield a lower total energy result than typical driving at lower speeds until empty?

Re: 17.1 kWh @ 20,000 miles

Posted: Sat Jan 07, 2017 10:51 am
by michael
That is true, but the heater is a low load compared to driving.

Heater is approximately 6 kW, the battery runs down in about 3 hours. You'd need to be driving rather slowly (25, 35 MPH maybe) to drive continuously for that long.

At 60 MPH, the battery would run down in less than 1 1/2 hours.

Re: 17.1 kWh @ 20,000 miles

Posted: Mon Feb 20, 2017 6:49 pm
by stargazer
2013 model - I have just over 24,000 miles and did a heater rundown from 100% to 0% with the Stop Safely Now alert on.
I got 17KWh. It took about 2.5 hours to run it down.

Re: 17.1 kWh @ 20,000 miles

Posted: Thu Mar 02, 2017 5:11 pm
by Omen87
Resurrecting this thread, I did a less scientific run down test on mine. I had about 52 miles and 12.4 kW on the trip. This evening I ran the car down the rest of the way with the heater. Got to 16 kW before the depleted battery warning. My car has 38,800 miles on it. I feel like this is fairly par for the course considering stargazer recently posted they got 17 kW at 24,000 miles and OP got 17.1 at 20,000. Any thoughts?

Re: 17.1 kWh @ 20,000 miles

Posted: Fri Mar 03, 2017 5:19 am
by jjsv1
Yesterday I got 12 kw on a trip with 6 miles to empty. 20k miles. Using the A/C in with the hotter temperatures are starting to kill me with this terrible battery.

Re: 17.1 kWh @ 20,000 miles

Posted: Fri Mar 03, 2017 3:03 pm
by Elektra
Omen87 wrote:Resurrecting this thread, I did a less scientific run down test on mine. I had about 52 miles and 12.4 kW on the trip. This evening I ran the car down the rest of the way with the heater. Got to 16 kW before the depleted battery warning. My car has 38,800 miles on it. I feel like this is fairly par for the course considering stargazer recently posted they got 17 kW at 24,000 miles and OP got 17.1 at 20,000. Any thoughts?
16 with 38,800 seems good to me.

Just adding my info for data points.
16.9 kW with 22,500 miles on a 2015.

Re: 17.1 kWh @ 20,000 miles

Posted: Sat Mar 04, 2017 9:17 am
by michael
Mine was in the mid-15's at three years, 50,000+ miles. I took very good care of the battery, avoided full charges when practical, charged "just in time" for departure when practical, never left the car fully charged for any appreciable time.

Re: 17.1 kWh @ 20,000 miles

Posted: Thu Mar 23, 2017 9:36 am
by gvblake22
Here's what the "data points" in this thread look like so far...
Image

Re: 17.1 kWh @ 20,000 miles

Posted: Sun Mar 26, 2017 5:44 pm
by fbitz777
just got 19.2KWH at 18.5k miles on '16FFE

is there a way for that chart to keep updating? also maybe do scale to start at 15kwh instead of zero for better resolution.

Re: 17.1 kWh @ 20,000 miles

Posted: Mon Mar 27, 2017 5:24 am
by Pearl
According to ForScan, with a just charged battery, 16.3kWh.
2013, 26,000 miles. However, I believe my battery was replaced, and not repaired when I had the recall done for the connector corrosion issues. ForScan reports the battery age as 22 months.