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Battery health 2014 Volt

1989 Views 13 Replies 8 Participants Last post by  hellsop
Hello, haven’t posted in years, as my Volt has been relatively trouble free over 70K miles. The Volt sat for almost two years of the COVID lockdown as I didn't need it for my commute. After we returned to work, my work location is a 2 mile drive. The battery never depletes.

From what I’m reading here it appears all Volt owners will face a day of mourning when the battery gets to EOL and battery replacements are either impractical or cost prohibitive.

My question to the group is that of all the Variables linked to battery health, has anyone uncovered a specific set of criteria other than cell voltage differences to indicate a battery entering its down hill slide? It would be great to know that sweet spot at which you should drive it to the dealer to trade. The retail values of these are still high.

I used my bidirectional scanner yesterday and this is the report. Perhaps I need to dig deeper to read the individual cells, but it appears that the software does it for you. Acceptable difference of .02V. Is there anything looking strange or do I have a very good condition battery for 9 years old?


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The likely test would be to watch cell voltages in real time while the car is being driven very hard in sport mode. One would be able to thus get a relative indication as to the variation in internal impedance of each cell. Ones that show voltage sags greater than the majority would be suspect. If they all follow together...you are good to go likely with a very good battery. I use the VX Nano to check on mine for bottom balance but have not yet had anybody drive the car in the aforementioned set up where I can monitor under heavy load. My 14 has been keeping very consistent at the depletion point with the cells tracking pretty close to each other.
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