Planerench wrote: ↑Tue Sep 15, 2020 8:20 am
After having by wife total my first Spark EV (White 2014, no DCFC) and my son totalling my second Spark EV (Red 2015, DCFC) I traveled 700 miles to Fresno to
buy a 2014 with 5900 miles on it hoping everything would be fresh. My first two days are showing about
11.5 KWH on what was a 21 KWH battery 
As soon as the title is transferred I'll be on my way to the dealership to check into the warranty!
.
Doh !! For some reason I thought you had a 2016! Mea culpa. Let me try this again ...

. (I erased my earlier posts.)
Contact GM and ask for a list of "EV qualified" (?trained?) dealerships close to you. Bring it to one of those (after calling and asking if they know how to do a battery capacity check).
2nd, are you doing capacity calculations, or do you have an OBD reader?
3rd: The warranty for 2015-16 Sparks is 40% degradation. The warranty for 2014 Sparks is 35% degradation. 65% of 21 is 13.65. You might want to do a few more "full charge of battery and drive down to below 30% SoC" cycles, and calculate / measure the battery capacity just to be sure (so that you don't have to pay the dealer for the check - i.e., you will be sure it fails).
- When you get the battery checked, make sure to get the results in written form. And if they say something like "our charger says it pulled 13.7 kWh while charging, so the battery is good enough", remember that the charger is NOT 100% efficient, and that all of the energy pulled out of the wall does NOT go into the battery.