RE: SP Angel Daily News5 Aug 2019 13:36
bassguy - yep the tesla 'battery' performance is completely unrepresentative of an individual cell's performance. They make it look like their batteries last longer simply by switching in spare cells. They don't make it look like zero degradation as that would be a complete giveaway so instead they put in an arbitrary rate of a few %. Fine if you want to run a car for 200K miles but of not great benefit if you are running the battery much harder on a stationary energy storage application. 1+ cycles per day instead of perhaps only 0.1 charge per day (40 charges per year = 10,000 miles )