2017 Traction battery loss of capacity

bobroth4433

Discussion Starter · #1 · Dec 13, 2020

1723 6

I have a 2017 premier with about 53000 miles, purchased about a year and a half ago. Up until three months ago the battery would provide 13.9 - 14.3 KWH when depleted. Lately I have been seeing depletion at 13.1 - 13.6 KWH with an average of 13.25. I have used an OBD II with MY Green Volt app to view the battery condition. The spread between the highest and lowest charge levels is .01 Volt when fully charged. The battery should still be under the Voltec warranty based on mileage and vehicle age. Does anyone know the criteria at which a traction battery would be deemed to be replaced or partially replaced under the warranty?

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Steverino

· Administrator

Joined Jan 26, 2011

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23,383 Posts

#2 · Dec 13, 2020

If your driving range drops by more than 30% under normal seasonal use.

obermd

· Registered

Joined May 27, 2017

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4,147 Posts

#3 · Dec 15, 2020

I believe it's 30%, which means it would need to be down around 10KWH.

FI Spyder

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Joined Jun 12, 2018

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3,293 Posts

#4 · Dec 15, 2020

I thought it was 30% with Gen I and 40% with Gen II (which is this case) with it's greater range.

supchrgamx

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16,17 volt

Joined Mar 28, 2016

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1,242 Posts

#5 · Dec 15, 2020

40% 2016
within spec to 8.52kw

Steverino

· Administrator

Joined Jan 26, 2011

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23,383 Posts

#6 · Dec 15, 2020

40% for the Bolt as well. Either way, the OP is likely not going to convince a dealer to provide a free replacement based on the OBD2 readings.

brett_cgb

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Joined Nov 28, 2015

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255 Posts

#7 · Dec 19, 2020

You may be looking at energy consumed for traction. This does not include energy consumed by HVAC for heating and A/C, which vary by season.

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