[FolsomCa]

I have read different sites that say it is best to charge battery at different levels. Meaning 1 day let it get low then charge,2nd charge let it get lower then Charge 3rd even lower than charge. Many thoughts are if you keep topping off every night to full charge the battery will not last as long as if you charge at multiple levels like charge day 1,3 5,7??? I dont know the true answer just looking for input and thoughts. I will average 20-30 miles a day doing rouitine stuff but more miles arounds weekends. I will charge at multiple levels between 10pm and 5am for best hours and no other household items being used. Thanks for input just thinking prior to ARRIVAL

 

[FolsomCa]

After a little research it sounds like keep battery between 20%-80% charge as necessary,but charging every night can shorten battery life. Also some sites say battery loses 2.3% a year so after 10 yeard over 23% loss which isnt bad.Also multiple sites say the plugging EV in 2-4 times a week is better for a battery life than charging nightly.

 

[atreis]

After a little research it sounds like keep battery between 20%-80% charge as necessary,but charging every night can shorten battery life. Also some sites say battery loses 2.3% a year so after 10 yeard over 23% loss which isnt bad.Also multiple sites say the plugging EV in 2-4 times a week is better for a battery life than charging nightly.

Many recommend 20-80% charge range. If the car doesn't support setting a limit like that (and I think Nissan has said the Ariya won't, at least initially, and doesn't need to) that's easier said than done. There's no communication of battery SOC between the car and the EVSE over J1772. Some EVSE will let you set a fixed amount of kWh to put in, but you'd have to set that each time according to the current state of charge.

An interesting article on battery degradation in Teslas:

A look at Tesla battery degradation and replacement after 400,000 miles

In this new installment of our series on the highest-mileage Tesla Model X (and one of the highest mileage EVs...

electrek.co

Makes the 23% loss at 10 years old figure look about right.

I do hope Nissan adds SOC charge limits in a future update. I'm one that would charge to 80% if I could set it for that.

 

[dafish]

Folsom:

You reading matches my thoughts.

Atreis:
If needed I'll buy a "Smarter EVSE" and use time or KW delivered. Seems less expensive than a replacement battery.. I'm sure you know comm to the EVSE isn't needed to stop charging, but for the next guy: The OBC controls all aspects. The EVSE only tells the OBC would it "could do" if the OBC asked it to. So if the car is to do it it would be via OBC. The EVSE could, crudely, but as you've mentioned it will never know battery state, so really only time and sometimes current delivered can be it's controls.

 

[CADGISEngr]

I drive a Kia Niro plug-in hybrid. I have a ChargPoint LV 2 charger installed on a 50amp circuit. After talking with the ChangePoint tech support I learned the CAR tells the ChargePoint charger how much power to draw. I know I can use the same CCS cable I now use on the Niro with the Ariya when I get one.

 

[bufkey]

I’ve a heard that having a flat/stable charging curve like the Ariya can prolong battery life, hopefully ~1% degradation/year during normal driving.

There‘s a new YouTube video showing a very stable 87kWh Ariya charging 5%-100% in 52mins, 20%-80% in 28mins which is quite good:

 

[FolsomCa]

Lots of good info for first time EV owner, its good people understand its more than just plug in and drive.

 

[dafish]

….After talking with the ChangePoint tech support I learned the CAR tells the charger how much power to draw. I know I can use the same CCS cable I now use on the Niro with the Ariya when I get one.

some language cleanup:

”the car” and ”the charger” are the same thing. This is called the onboard charger, or OBC. The thing many new folks call “the charger” is really just a smart extension cable. It’s called an EVSE (electric vehicle supply equipment).