2016-2017 model year 30 kWh bar losers and capacity losses

[jbuntz]

I’ve spent the last two years being frustrated that the extra money I spent for 30 kWh was a waste and somewhat bitterly having to adjust my lifestyle to compensate for the reduced range!

Have you simply considering doing real life range test? Fully charge and then drive the car to VLBW (or turtle, if you are careful) and what your capacity seems to be? There's a big range difference between 8 and 11 bars.

i have done a range test. Before I got about 60 miles to LBW and another 25 to turtle. Now I get 80 to LBW and another 10 to turtle. I estimate 1kWh improvement in total capacity.

[mn4az]

Had the need for a full charge this past weekend and grabbed the following stats.... software update was done the evening of 6/20. Car is a '16 30kWh. Battery pack mfg date is 12/15. Here's hoping that another 1.23% SOH drop does not happen after another 584 miles.

Date 6/19/2018 6/20/2018 6/21/2018 6/23/2018 7/3/2018 7/21/2018
AHr 68.58 68.51 73.66 74.27 73.94 72.96
SOH 86.29% 86.20% 92.68% 93.44% 93.03% 91.80%
V 395.67 395.47 395.26 395.66 395.71 395.55
Hx 78.79% 78.70% 78.28% 79.79% 78.98% 76.54%
ODO 32561 32589 32643 32830 33303 33887
QC 9 9 9 9 9 9
L1/L2 1708 1710 1712 1723 1748 1778
SOC 97.80% 97.70% 97.80% 97.70% 97.80% 97.70%
GIDS 313 313 337 339 338 334
kWh 24.3 24.3 26.1 26.3 26.2 25.9

On the bright side, in some very mixed highway/city driving I got 104.7 real world miles (22.8 kWh used / 4.6 miles per kWh in 3 hours of driving).

[SageBrush]

I’ve spent the last two years being frustrated that the extra money I spent for 30 kWh was a waste and somewhat bitterly having to adjust my lifestyle to compensate for the reduced range!

Have you simply considering doing real life range test? Fully charge and then drive the car to VLBW (or turtle, if you are careful) and what your capacity seems to be? There's a big range difference between 8 and 11 bars.

i have done a range test. Before I got about 60 miles to LBW and another 25 to turtle. Now I get 80 to LBW and another 10 to turtle. I estimate 1kWh improvement in total capacity.

A charge to full from Turtle would be less susceptible to variation

[jbuntz]

Have you simply considering doing real life range test? Fully charge and then drive the car to VLBW (or turtle, if you are careful) and what your capacity seems to be? There's a big range difference between 8 and 11 bars.

i have done a range test. Before I got about 60 miles to LBW and another 25 to turtle. Now I get 80 to LBW and another 10 to turtle. I estimate 1kWh improvement in total capacity.

A charge to full from Turtle would be less susceptible to variation

Charging from turtle before and after showed a 1kWh improvement.

[SageBrush]

i have done a range test. Before I got about 60 miles to LBW and another 25 to turtle. Now I get 80 to LBW and another 10 to turtle. I estimate 1kWh improvement in total capacity.

A charge to full from Turtle would be less susceptible to variation

Charging from turtle before and after showed a 1kWh improvement.

Interesting, and thanks for the information.

Do you happen to know if the LeafSpy reported SoC at VLB changed after the update ?

[jbuntz]

A charge to full from Turtle would be less susceptible to variation

Charging from turtle before and after showed a 1kWh improvement.

Interesting, and thanks for the information.

Do you happen to know if the LeafSpy reported SoC at VLB changed after the update ?

VLB is at the same number of GIDs but SOC in LeafSpy is much higher. At turtle SOC still reported 5.7%. Prior to update SOC at turtle was 0.0%

[dwl]

Charging from turtle before and after showed a 1kWh improvement.

Interesting, and thanks for the information.

Do you happen to know if the LeafSpy reported SoC at VLB changed after the update ?

VLB is at the same number of GIDs but SOC in LeafSpy is much higher. At turtle SOC still reported 5.7%. Prior to update SOC at turtle was 0.0%

Useful info. Prior to the update did you notice when SOC first reached 0% (how many GIDs)?

[jbuntz]

Interesting, and thanks for the information.

Do you happen to know if the LeafSpy reported SoC at VLB changed after the update ?

VLB is at the same number of GIDs but SOC in LeafSpy is much higher. At turtle SOC still reported 5.7%. Prior to update SOC at turtle was 0.0%

Useful info. Prior to the update did you notice when SOC first reached 0% (how many GIDs)?

Prior to update up to 6 GID = 0% 9 GID =1.3% 41 GID = 11.5%. Now 5 GID = 5.7 and 5.4 %

[lorenfb]

06/20 08 21716 230 50.41 63
06/27 11 22047 296 66.01 83 Aftr Updt

Incredible! ~ +6kW (~ +16 Ahrs, ~ +20% SOC) after the update

Amazing what one can do by changing a few binary numbers, right?

[SageBrush]

A charge to full from Turtle would be less susceptible to variation

Charging from turtle before and after showed a 1kWh improvement.

Did I miss those results ? They are the most indicative of whether the post update Ahr capacity increase reported by the BMS to LeafSpy is believable.