sparkandbolt wrote:I just used dcfc to go from 50 percent to 80 percent in ten minutes. Battery capacity still shows 17.833. Temperature of battery was around 70 degrees when finished, outside temperature was 45 degrees or so.
Using TorquePro, measure and record your battery capacity each week for the next few months and see if you see any gradual drop in battery capacity. Postings on this forum for many 2015 Spark EVs with around 30k miles on the ODO indicate a battery capacity in the low 15s or high 14s. It almost looks like they replaced your HV battery. I say this because new, my 2015 Spark EV gave me calculated values of 18+ kWh. At 30k miles it was between 15 and 15.5 kWh.
At 12k miles on December 2017, my 2014 Spark EV calculated battery capacity was 17.8 kWh. On 23 May 2018 at 14K miles the calculated battery capacity had dropped to 16.7 kWh. Over the same time interval and driving distance, my 2016 Spark EV calculated battery capacity ranged between 16.8 kWh and 17.7 kWh with 17.7 kWh the value on 24 May 2018.
I started using TorquePro in June 2018. My 2014 Spark EV started at 17.2 kWh and most recently (21 December 18) was measured to be 16.7 kWh having been driven 2500 miles. Over the same time interval, my 2016 Spark EV started at 16.6 kWh and most recently was measured at 16.1 kWh having been driven 5000 miles.
I am still trying to understand all of this.
Added note: One thing I have noticed from my TorquePro data is the drop in battery capacity seems to track with the drop in battery temperature. If this is true, then I should expect the battery capacity to increase as daily ambient temperature increases.