NORTON
Posts: 1210
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: First (and only) Failure @ 54k miles.

Wed Aug 01, 2018 3:36 am

two20142lts wrote:Same problem on 2014 spark EV with 55k miles ....replaced 12 battery and all is well now. Just bought one at Walmart to 49.00
Just to be clear my '14 had nothing wrong with its 4 year old AGM battery. It passed a Capacity Check in flying colors!

My car had the HPCM2 go bad after a 9 minute DCFC pit stop. I'm now nervous about doing the next DCFC. :o

And it turns out this Module can be bought online for $236. It is common with the Volt and Bolt.
Programming it to tell it is in a '14 Spark EV is another matter....
Used '14 2LT w/ DCFC.
+67 K miles. Mostly free electrons! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.

SparkE
Posts: 306
Joined: Tue Sep 06, 2016 1:18 am

Re: First (and only) Failure @ 54k miles.

Wed Aug 01, 2018 10:18 am

Well, until the car hits 8 years or 100,000 miles, it gets replaced for free under warranty ...

NORTON
Posts: 1210
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: First (and only) Failure @ 54k miles.

Wed Aug 01, 2018 2:44 pm

:mrgreen: What a great warranty !! :!:
Used '14 2LT w/ DCFC.
+67 K miles. Mostly free electrons! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.

NORTON
Posts: 1210
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: First (and only) Failure @ 54k miles.

Fri Aug 03, 2018 11:55 am

After the HPCM2 warranty replacement and the 'Range Estimate...' recall my car is strangely Better Than Ever!

The displayed battery capacity is now in the 18 - 20 kWh range.
So far this is from only ~50 mile round trip commutes and only charging in the morning at work.

Before repairs:
mileage date Displayed - Calculated kWh
42110 10-11-17 80% 13.4 -16.75
42366 10-17-17 55% 9.3 -16.91
42416 10-18-17 58% 9.8 -16.90
42480 10-19-17 85% 14.4 -16.94
42654 10-24-17 69% 11.6 -16.81

After repairs:
mileage date Displayed - Calc kWh
54750 7-24-18 58% 11.5 -19.83
54861 7-26-18 60% 11.2 -18.67
55042 7-31-18 54% 10.5 -19.44
55138 8-2-18 54% 10.8 -20.00
55187 8-3-18 55% 11.0 -20.00

WTH is going on here?
Did they slip me a new battery pack? :D
Will I need to take the car into a deeper discharge to let it know how things are?
I plan on a long night out on the town this evening just to test this theory out.
Used '14 2LT w/ DCFC.
+67 K miles. Mostly free electrons! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.

TheLondonBroiler
Posts: 179
Joined: Tue Oct 31, 2017 6:25 am

Re: First (and only) Failure @ 54k miles.

Fri Aug 03, 2018 1:37 pm

NORTON wrote:After the HPCM2 warranty replacement and the 'Range Estimate...' recall my car is strangely Better Than Ever!

The displayed battery capacity is now in the 18 - 20 kWh range.

WTH is going on here?
My guess, "Phantom Capacity"

Much like a Nissan LEAF that's been "reset" or possibly even just without 12v power for an extended period, the Spark doesn't know any better.....yet. This will very likely correct itself.

https://www.mynissanleaf.com/viewtopic.php?t=22646
(EDITED TO ADD LINK)

This is a case where I'd be happy to be wrong, but I doubt it.
2015 Spark EV w/ DCFC 46,XXX miles
Purchased 1/20/18 w/ 16,5XX miles
2019 Bolt EV w/ DCFC 6,XXX miles
Purchased 3/16/19 w/ 87 miles

charles
Posts: 31
Joined: Tue Oct 24, 2017 9:47 am

Re: First (and only) Failure @ 54k miles.

Sat Aug 04, 2018 7:03 pm

I'm generally an optimist, so maybe it is a firmware tweak that really does allow us to use more of the battery before it hits no-go zero. Or it may raise the usable ceiling of what a full charge really can accept. Or better yet, both! Perhaps a 10% buffer was engineered in on both ends, and it has been deemed that a 5% buffer is enough. Perhaps it depends more on climate than it used to.

Or if you are a pessimist, it sounds like a firmware update tweaked to make sure there are fewer warranty claims on batteries come 7 years 11 months or 99k miles.

Just as I've never run out of gas since age 18 (it did happen once in my first 1968 Cutlass S convertible, I learned the hard way), I've never run out of electrons in my Spark, so I don't really know what zero is, and don't want to find out.

NORTON
Posts: 1210
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: First (and only) Failure @ 54k miles.

Mon Aug 06, 2018 5:47 am

WTH :?: - Continued:

Mileage - date - Displayed - Calc kWh
55138 8-2-18 54% 10.8 20.00
55187 8-3-18 55% 11 20.00
55255 8-3-18 80% 14.9 18.63
55320 8-6-18 69% 13.7 19.86

When does the 'Relearn' happen? :lol:

Just for reference, here's some old data:

26713 11-10-16 76% 13.5 17.76
26765 11-11-16 67% 12 17.91
26846 11-14-16 62% 11.3 18.23
26934 11-15-16 27% 4.8 17.78
26958 11-16-16 69% 12.3 17.83
27019 11-17-16 81% 14.5 17.90
27078 11-18-16 76% 13.5 17.76
27078 11-18-16 76% 13.5 17.76
27149 11-19-16 68% 12.5 18.38
27159 11-19-16 81% 14.7 18.15
27159 11-19-16 68% 12.5 18.38
27159 11-19-16 81% 14.7 18.15
27203 11-21-16 62% 11.3 18.23
27203 11-21-16 62% 11.3 18.23
27254 11-22-16 72% 12.8 17.78
Used '14 2LT w/ DCFC.
+67 K miles. Mostly free electrons! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.

SparkE
Posts: 306
Joined: Tue Sep 06, 2016 1:18 am

Re: First (and only) Failure @ 54k miles.

Mon Aug 06, 2018 8:23 am

NORTON wrote: When does the 'Relearn' happen? :lol:
Some day when you know you won't have a *need* for range, run the battery down to 10 miles shown range, then calculate, then fully charge. (As it stands, it looks like my next Spark will have "a problem" requiring the same replacement part that you got ;) )

NORTON
Posts: 1210
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: First (and only) Failure @ 54k miles.

Mon Aug 06, 2018 11:40 am

SparkE wrote:Some day when you know you won't have a *need* for range, run the battery down to 10 miles shown range, then calculate, then fully charge. (As it stands, it looks like my next Spark will have "a problem" requiring the same replacement part that you got ;) )
This run of 80% usage was after 68 miles, and displayed 16 mi range remaining. 84 mi total, if you can believe it...
Mileage - date - Displayed - Calc kWh
55255 8-3-18 80% 14.9 18.63

I don't know if it was the new HPCM2 module or the new SW loaded for the "Range Estimation may be incorrect..." recall.

Somehow my Spark EV has a new "lease on life", even though I own now! Paid off ! :D
Used '14 2LT w/ DCFC.
+67 K miles. Mostly free electrons! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.

PhilPen
Posts: 72
Joined: Mon Oct 31, 2016 9:54 am
Location: Hamden, CT

Re: First (and only) Failure @ 54k miles.

Mon Aug 06, 2018 11:51 am

It would be nice to think that was a real value and that the software de-rates it with time like a HP ink cartridge regardless of its real remaining capacity, and after the update it is actually showing what you really have left. I'll take my car in for the update soon, I have 25 kmiles on a 2015 and I'll see what happens to the capacity reading on mine. I was reluctant to take it in because the GOM seemed to show no anomalous behavior at least here in the CT climate and I didn't want them to zero out my accumulate average miles/Kwh... my wife is pulling away from me there as it is.
2015 Spark EV 2LT electric blue with DCFC
2016 Spark EV 2LT salsa red with DCFC

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