llamapants wrote: ↑
Wed Jan 22, 2020 9:21 pm
Is there a consensus as to which years battery lasts the longest with least degradation?
the 2014 Spark EV has a battery from A123. The 2015 and 2016 Spark EVs have a battery from LG. I have had all three models. Here is what my data shows:
2014 Spark EV lost 1.0 kWh every 4482 miles (21964 miles on the ODO)
2015 Spark EV lost 1.0 kWh every 7604 miles (26508 miles on the ODO) (see note below)
2016 Spark EV lost 1.0 kWh every 9198 miles (27761 miles on the ODO)
(Updated 24-Jan-20): My 2015 Spark suffered a significant drop in battery capacity at about 19k miles. Battery capacity dropped from 17.09 kWh to as low as 15.3 kWh. The check engine light went on too. Chevy replaced a charging port component but I never recovered the lost capacity. Data prior to that point shows I was losing 1 kWh every 10225 miles.
Note: All of my data for the 2015 Spark EV was derived from the car's Energy Information Screen. Data for my 2014 and 2016 Spark EVs was taken using TorquePro. A friend of mine had a leased 2016 Spark EV. Using TorquePro, I measured his battery capacity at 14.8 Kwh just before he turned his car back in at 30k+ miles.