4 ms·
I think you're overestimating the battery capacity loss. There is a Dutch study which concludes the following: Based on 84 data points from the 85-kWh version
by perbu 10y ago
I think you're overestimating the battery capacity loss. There is a Dutch study which concludes the following:
Based on 84 data points from the 85-kWh version of the Model S and six from 60-kWh cars, the study concludes that the Model S will retain about 94 percent of its capacity after 50,000 miles, with losses thereafter shrinking to about 1 percent per 30,000 miles.
That means that after 100,000 miles, the typical Model S is projected to retain about 92 percent of its battery capacity and range.
So what "fact" you are relying on stating the battery will have to be replaced between 3 and 6 years is probably not very factual. Other, simpler EVs, lacking the rather sophisticated battery management system of the Model S might degrade quicker - especially in warmer climates, but nowhere near as fast as you state.
Other than that, you're right in that most EVs are almost as complex as a modern ICE. They need to be checked regularly and will need repairs.
- forgetsusername 10y ago>There is a Dutch study which concludes the following You should probably link to the study. >3 and 6 years is probably not very factual. 3 years might be early, but I have a hard time believing that Tesla has hit on some magic as far as batteries are concerned. The drain on anything I have at home is far more than what you state; my phone battery certainly isn't much good after 6 years.. But I have no idea. I guess we'll see as the current Teslas age.
- impy 10y agoTook me a little bit of searching to actually find the source, and to call it a study is a bit an overstatement, however here are some links: https://steinbuch.wordpress.com/2015/01/24/tesla-model-s-battery-degradation-data/ https://steinbuch.wordpress.com/2015/01/24/tesla-model-s-bat... [A blogpost about the study] https://docs.google.com/spreadsheets/d/t024bMoRiDPIDialGnuKPsg https://docs.google.com/spreadsheets/d/t024bMoRiDPIDialGnuKP... [The study/survey] http://www.daglievemensen.nl/tesla/maxrange.htm http://www.daglievemensen.nl/tesla/maxrange.htm [Interactive graph] And as bonus a link to the Tesla Roadster battery study: http://www.groen7.nl/images/wp2013/divers/PIA-Roadster-Battery-Study.pdf http://www.groen7.nl/images/wp2013/divers/PIA-Roadster-Batte...
- pessimizer 10y agohttps://encrypted.google.com/search?hl=en&q=%2250%2C000%20miles%2C%20with%20losses%20thereafter%20shrinking%20to%20about%201%20percent%20per%2030%2C000%20miles%22 https://encrypted.google.com/search?hl=en&q=%2250%2C000%20mi...
- mikeash 10y agoIt's a completely different scenario from your phone battery. Your phone battery gets charged to 100% every day (if you're like most people), gets discharged deeply on a regular basis, and has no thermal management. Tesla batteries are typically charged to 90% or less, with the 100% charge level being reserved for long trips, they're typically not using a particularly large fraction of the battery (most people don't drive 200+ miles every day), and there's a sophisticated thermal management system that keeps the batteries at the optimal temperature. What kills lithium batteries is time, cycle count, heat, and extreme states of charge. A Tesla battery has a massive advantage on three out of those four compared to consumer electronics, which is why comparing to your phone or laptop isn't very informative.
- danmaz74 10y agoVery interesting data, I too thought that the battery would degrade much faster.
- tamana 10y agoThese numbers are almost certainly because the Tesla battery is overprovisioned and actually has something like 108% of a reported fully battery when new. Also, batteries lose capacity with time as well as use.