Best way to charge to prevent battery degradation?

[AAKEE]

Hi, this is a fantastic thread, thanks for all that documented information. I take it to apply to 1870 cells as well with some variations of degradation but the main idea of low state of charge concept applies totally, right?

18650, as in model S and X?

Yes, actually most tests is on 18650 so far.

The form factor (18650 and 21700) is only the dimensions of the cells.
The “big” thing is the chemistry, NCA for all long range cars in US.
And, the differences are not very big differences between the chemistries either when it comes to best practices.

 

[Resist]

You’re not gonna get 330 miles of range anyway; the EPA estimated range is a joke.

Most of the time the EPA doesn't actually do the tests, but instead uses the results of the manufacture because they just don't have the people or money to test every single vehicle on the market. It's sad but true.

 

[steph746]

Most of the time the EPA doesn't actually do the tests, but instead uses the results of the manufacture because they just don't have the people or money to test every single vehicle on the market. It's sad but true.

Pretty sure I can. From 95% I drove 250 miles and had 20% left. Range is pretty good I’d say.

 

[Geech72]

Most of the time the EPA doesn't actually do the tests, but instead uses the results of the manufacture because they just don't have the people or money to test every single vehicle on the market. It's sad but true.

No, they test it on a Dyno not real world

Here's How The EPA Determines EV Range

It's not quite as simple as you might think. But it is understandable, so dive in and let's get your versed in regulatory language.

www.thedrive.com

 

[gt2690b]

No, they test it on a Dyno not real world

Here's How The EPA Determines EV Range

It's not quite as simple as you might think. But it is understandable, so dive in and let's get your versed in regulatory language.

www.thedrive.com

Testing is done at EPA’s NVFEL facility and by vehicle manufacturers at their own facilities. EPA audits the data provided by vehicle manufacturers and performs its own testing on some of the vehicles to confirm the results.

Tesla uses the 5 cycle test while most manufacturers just use the 2 cycle test

 

[Resist]

No, they test it on a Dyno not real world

Here's How The EPA Determines EV Range

It's not quite as simple as you might think. But it is understandable, so dive in and let's get your versed in regulatory language.

www.thedrive.com

True, but again they don't test every single make and model of vehicle, it is a fact that often they will use the manufactures data. They just don't have the manpower or money to test all the vehicles.