Post by Computer Nerd KevPost by XenoPost by Nomen NescioI mean the lithium batteries in a laptop computer only
last a few years.
You *might* benefit from a good read of this.
https://au.renogy.com/blog/everything-you-need-to-know-about-lithium-battery-charging-cycles/
It's the charging cycle and the usage style that are the critical
things. I know of a number of hybrid cars where the batteries are in
excess of 10 years old. At 10 years, if charged and used correctly, they
should still have better than 80% capacity remaining.
The numbers from that article suggest (vaguely) that "used
correctly" means you only use 25% of the available capacity before
recharging, so that's rather a big chunk off the advertised range
of the vehicles. It probably does apply to many urban commuters,
but EVs are advertised now as being replacements for internal
combustion powered cars, so presumably many are used as such in
longer trips.
Research suggests that most people could easily substitute a BEV for
their daily driver since they drive less than 50 kilometres daily.
Certainly, were either or both of our cars BEVs, then we would use less
than 20% of battery capacity daily with occasional long trips. Some of
those trips would be 100-200 km round trip, some rarer trips would
exceed that. I consider my self an average car user though not a
commuter since I'm retired, certainly my annual mileage indicates that.
Post by Computer Nerd KevAlso the article's about solar power, not electric vehicles, so
their conversion of charge cycles to years probably isn't based on
factors relevent to vehicle use.
Maybe not but EV batteries are generally warranted for 8 years or more.
That gives a good expectation of a 10+ year average lifespan. My point,
by including that article, was to demonstrate that *how you charge* and
*how you use* the EV battery is what ultimately determines the battery
lifespan. Phones and laptops are no different and this is a point lost
on most people.
Tesla
Model S and Model X - 8 years (with the exception of the original 60 kWh
battery manufactured before 2015 that is covered for a period of 8 years
or 125,000 miles/200,000 km, whichever comes first).
Model 3 with Standard or Mid-Range Battery - 8 years or 100,000 miles
(160,000 km), whichever comes first, with minimum 70% retention of
Battery capacity* over the warranty period.
Model 3 with Long Range Battery - 8 years or 120,000 miles (192,000 km),
whichever comes first, with minimum 70% retention of Battery capacity*
over the warranty period.
Hyundai
8 year battery warranty; Each high voltage lithium-ion battery is backed
by an 8 year/ 160,000km replacement warranty (whichever occurs first)
Post by Computer Nerd KevMy guess is that many won't make it to 10 years in useful
condition, but some will, which is actually the same as I've
The reality, with Toyota hybrids at least, is that EV batteries do last
longer than 10 years and still retain a useful range. I suspect the
BEVs, once they get up to 10 year lifespans, will be no different.
Post by Computer Nerd Kevexperienced with laptops from different users. My laptop experience
Cars *are not* laptops.
Post by Computer Nerd Kevalso suggests that battery quality is a big factor as well (cheap
no-name replacement packs die much sooner than OEM batteries).
That's true for any and all batteries.
--
Xeno
Nothing astonishes Noddy so much as common sense and plain dealing.
(with apologies to Ralph Waldo Emerson)