fizzit
Posts: 10
Joined: Sun Nov 18, 2018 10:50 pm

Re: Battery degredation

Sat Dec 29, 2018 5:36 pm

An update to my above post, about how my 2015 Spark w/40k miles has 14kWh of capacity:

I brought it in to a local dealership yesterday and they said they couldn't find anything wrong with it but they're going to contact GM engineering. The tech I spoke to said they had replaced 2 Spark EV batteries this year, which was surprising because I'm in Washington, where the Spark wasn't even sold. He didn't know the circumstances surrounding the replacements as he hadn't been the one to work on them, but he said one of the owners had been contacted by GM directly and told to get a battery replacement.

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

Re: Battery degredation

Tue Jan 08, 2019 12:08 pm

fizzit wrote:An update to my above post, about how my 2015 Spark w/40k miles has 14kWh of capacity:

I brought it in to a local dealership yesterday and they said they couldn't find anything wrong with it but they're going to contact GM engineering.
SparkandBolt posted this last thread page and is worth looking into. I may contact a bolt dealer to see their willingness to check into it.

"Tech. details:

Tech found code P0D5700 stored in system, found bulletin with doc# 3225327 available. Tech followed the diagnosis chart system and performed testing on hpcm2 module. corrected by hybrid powertrain control module 2."
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

fizzit
Posts: 10
Joined: Sun Nov 18, 2018 10:50 pm

Re: Battery degredation

Wed Jan 09, 2019 8:47 am

SparkandBolt posted this last thread page and is worth looking into. I may contact a bolt dealer to see their willingness to check into it.

"Tech. details:

Tech found code P0D5700 stored in system, found bulletin with doc# 3225327 available. Tech followed the diagnosis chart system and performed testing on hpcm2 module. corrected by hybrid powertrain control module 2."

I did mention that to the service guy at the desk and he said that it would show a warning light for any codes. I've only seen it show the light once after L2 charging and it went away with a restart. I also checked for codes with torque pro but I don't know how exhaustive that is. Hopefully GM engineering will get back to them with any relevant tech docs or other resources.

sparkandbolt
Posts: 4
Joined: Thu Dec 20, 2018 5:00 am

Re: Battery degredation

Mon Jan 14, 2019 2:08 pm

Some more data.. car wasn't driven as much for the past few weeks, battery capacity now shows 17.667 KWH, drove a lot today after full charge, ended up with following data points:

Distance: 58.9 miles
Efficiency: 3.9 Miles/KWH
GOM readings miles range left: 9 - 10 - 12
Energy used: 15.1 KWH - Implied capacity = 15.1/.85 = 17.76KWH
Driving & Accessories: 85% - Rest are 0%

It was mostly highway miles hence the efficiency, cold day about 34 degrees F. What a fun car this is!

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

Re: Battery degredation

Fri Jan 18, 2019 9:12 am

I've decided I'm going to try to schedule an appointment with a reasonably close dealer that sells Bolts (hoping for better trained techs), to take a look at my Spark. During my first months of ownership, I had occasional idiot lights/DTCs, and having gone back this morning and looking at a Torque Pro screen shot, one of the codes was p0ac4, which could implicate an issue with the hpcm. Being that I'm down to 14.0 kwh, my 62 mile daily commute doesn't leave me with much leftover range in cold temps. I'll report back with the result.
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

msmith99
Posts: 2
Joined: Tue Mar 19, 2019 7:35 am

Re: Battery degredation

Wed Apr 10, 2019 6:37 am

I recently ordered a 2015 Spark EV from Carvana that just came off a 3-year lease with about 17,500 miles on it. When it arrived it had a full charge range of 65 miles and that leveled out to about 70 miles after a few charges. I calculated the capacity at around 15KWh based on the kWh used divided by the %battery used. This seemed really low so I hooked up an OBD2 with Torque Pro and it showed exactly 15kWh capacity. I'm sending it back and requested another one. Hopefully, the next one will have a capacity over 16kWh or that one will go back too.

We love the car so our fingers are crossed!

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

Re: Battery degredation

Wed Apr 10, 2019 6:52 am

msmith99 wrote:
Wed Apr 10, 2019 6:37 am
I recently ordered a 2015 Spark EV from Carvana that just came off a 3-year lease with about 17,500 miles on it....
....it showed exactly 15kWh capacity. I'm sending it back and requested another one.
Welcome to the forum. Unfortunately, this battery capacity level (~15kwh) is pretty much what is to be expected from the Spark with LG pack (I haven't read recent accounts to the contrary).

That being said, for the sake of time, money, etc, if 15kwh/~70 mile range isn't acceptable, you want to look at a different EV/PHEV (I know there isn't much comparable, all things considered). Good luck.
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

msmith99
Posts: 2
Joined: Tue Mar 19, 2019 7:35 am

Re: Battery degredation

Wed Apr 10, 2019 10:12 am

TheLondonBroiler wrote:
Wed Apr 10, 2019 6:52 am
msmith99 wrote:
Wed Apr 10, 2019 6:37 am
I recently ordered a 2015 Spark EV from Carvana that just came off a 3-year lease with about 17,500 miles on it....
....it showed exactly 15kWh capacity. I'm sending it back and requested another one.
Welcome to the forum. Unfortunately, this battery capacity level (~15kwh) is pretty much what is to be expected from the Spark with LG pack (I haven't read recent accounts to the contrary).

That being said, for the sake of time, money, etc, if 15kwh/~70 mile range isn't acceptable, you want to look at a different EV/PHEV (I know there isn't much comparable, all things considered). Good luck.
Thanks for the info! Hopefully this one will come in a little higher because if the degradation continues at that rate I won't be able to make my 54 mile round-trip commute in a year or two. We have two other ICE cars but I was hoping to be able to drive the Spark.

I am waiting for the new group of EVs to become more readily available and was hoping the Spark could bridge the gap til then. My wife loves driving the car and has a much shorter commute so we may keep the next one anyway.

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

Re: Battery degredation

Wed Apr 10, 2019 10:38 am

msmith99 wrote:
Wed Apr 10, 2019 10:12 am
Hopefully this one will come in a little higher because if the degradation continues at that rate I won't be able to make my 54 mile round-trip commute in a year or two.

....was hoping the Spark could bridge the gap til then. My wife loves driving the car and has a much shorter commute so we may keep the next one anyway.
I have a 62 mile commute, and with no work charging, during the winter (depending on your climate) either have to stop to charge/fast charge or be cold and if you're lucky, make it home with 20% battery (this is with mostly sensible, gentle, mixed driving, definitely in the right lane at no more than 60mph while on the highway).

One thing in particular I looked for when I bought mine, was the battery gauge in a photo, showing a not empty but not full battery, as storage in those states can be detrimental.
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

Kermit
Posts: 39
Joined: Mon Feb 04, 2019 10:47 am

Re: Battery degredation

Wed Apr 10, 2019 10:42 am

I purchased mine from Carvana off of a lease as well. It was a 2016 and originally showed 16.2667 with Torque pro. It is now at 16.0667 with ~13,000 miles on it just for reference. I drive very conservatively (averaging 6-7kWh per mile) and after a month of driving the range went from a full charge of 70 up to 98 miles at full.

I have not done enough testing to find out but I believe the kWh reading in Torque pro only changes after you fully charge the car and turn it back on. I can not confirm if the degradation happens all the time and it just calculates it for Torque pro to see at 100% or if charging to 100% lowers it I would assume it's the former. I will charge again in a month to see and may skip a month of charging to 100% to see if i'm correct.
2016 Spark EV

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