Re:Mercedes Readies First Tesla Rival in $12B Attack
by btilly on Tuesday September 04, 2018 @08:43PM
(#17914185)
Your regular car battery is probably https://en.wikipedia.org/wiki/Lead%E2%80%93acid_battery which is a different technology. The Prius uses Nickel–metal hydride batteries. Again, different technology.
The Leaf and Tesla both use lithium-ion. I don't know why the apparent difference. But per https://www.tesla.com/support/vehicle-warranty-m3, Tesla's battery warranty is 8 year or 120k miles, and comes into effect if your range drops by 30%. So they expect better performance than the apparent real world performance of the Leaf.
I also do not know why there would be a difference in those technologies.
Re:Mercedes Readies First Tesla Rival in $12B Attack
by davidgould on Wednesday September 05, 2018 @05:04AM
(#17916262)
The Leaf does not have a liquid cooling system for its battery. Most other EV's do. The early Leafs also used a battery chemistry especially prone to deterioration due to heat. Many early Leafs in hot climates had significant battery degradation. This is one of the reason used Leafs are so inexpensive. The more recents Leafs batties are supposed to be better.
My (anecdotal) evidence was that I replace my regular car battery in my cold-weather state every few years, and it does barely anything! And my sister just replaced the main battery in her 2006 Prius.
On a more applicable note, a Leaf loses 33% of its range after 56k miles [1]. I'm not nearly as familiar with Teslas (unfortunately); perhaps they have cracked the formula to long-lasting batteries.
[1] https://www.nimblefins.co.uk/nissan-leaf-battery-capacity-ra...