PSA - Setting Charge Limit (not one-time)

[GDN]

It's coming in an update hopefully later this year.

Most welcome changes. Need some beta testers?

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[PungoteagueDave]

So what I am trying to figure out is why so many here have pushed for the 80% mark. I too have set mine to 90%, and might adjust it further to 95%.

Just wondering where this number of 80% actually came from.

I think this came from a throwaway comment that Elon Musk made a couple years ago about lithium ion battery life being best served if charge levels are maintained between 20% and 80%, and if he was trying to lengthen his own battery life, he'd never go over 80% for daily use - except when supercharging on road trips. A lot of folks on the Tesla forums took that as gospel and it has spread on the interwebz.

 

[rdr854]

Good.

Now is there anyway to get the damned clock to stay on 24 hour time and not have to be selected each time?

I have the same complaint. Ugh!

 

[It's Just Me]

Maybe actual research testing over the last 12 years to include cycle life and calendar life? But what would I know about it?

I don't know if you're being sarcastic or not. Just seems that this 80% comes from somewhere, but WHERE? Just things I like to know.

On a different note: Making a battery that one should only charge to 80% is like the moronic quartermasters and contractors that design a 30 round magazine for an M-16/M-4, but tell you not to put the full 30 rounds in the magazine, but still gives you a clip that has 10 rounds on it.

 

[It's Just Me]

Take a look at what I do and some of my previous posts. I have posted on how to make your battery live (almost) forever but I don't plan on following all of my own advice.

What I do is testing on the cell level. I can see the actual effect of cycling delta and temperature. I have 12 years of data saying 20%-80%, at 25C, and low currents will allow the cell to have much less degradation.

Most of the rest of this post was going to go into much greater detail about all the hidden capacity that you never know about which is why those driving EVs for years charging to 100% state as fact that they never had degradation in a battery. They do, just don't get to see it from the overall SOC and miles driven.

See. That is all I was asking for. It's like when people say "I read that X" but never say where "X" came from. Just something someone heard back when, but isn't actually true or doesn't have data supporting it.

 

[Replika]

They made this way too confusing. Just add one charge setting and make it adjustable via app (and car). No wonder every Lightning on the lot is sitting at 100%.

 

[Maquis]

They made this way too confusing. Just add one charge setting and make it adjustable via app (and car). No wonder every Lightning on the lot is sitting at 100%.

Ford’s pre-delivery instructions to the dealer tell them to charge to 100% when prepping for customer delivery. They probably do it before selling it just to get it out of the way.

 

[Replika]

Ford’s pre-delivery instructions to the dealer tell them to charge to 100% when prepping for customer delivery. They probably do it before selling it just to get it out of the way.

I found NFS demo models sitting at 100%, or like 20%. Pretty typical for dealerships to ignore the charge guidelines though, not just Ford.

 

[Replika]

Well more confusion here. The car seems.to require “use preferred charge settings” selected in the truck for each charge location in order or not charge past the limit (it just went past my limit tonight). No mention of this setting in the truck’s Charge menu.

Entering the Charging Locations menu in the truck reverts the location in the app to “charge when plugged in”

 

[dgargano]

Sorry if this is common knowledge, but I was really frustrated thinking that I couldn’t set a charge limit except for the 1 time limit adjustment.

Turns out if you go into/edit the “Charging Locations” screen (toward bottom of picture - on the “Charge” settings section) you can set permanent limits for specific locations. This will work perfectly for me since the only places I regularly care about the limit are at home and work, so I set both for 90% to help with battery life. Anywhere else I’m fine either setting a 1 time limit of needed, but I doubt I’ll be chargi³ng many places on the road where I accidentally go over 90%.

Only had my 2023 Lightning 2 weeks. Was thinking same thing. You just made my day if this works. Trying this tomorrow.

 

[Maquis]

Only had my 2023 Lightning 2 weeks. Was thinking same thing. You just made my day if this works. Trying this tomorrow.

It works…..as described in the owners manual.

 

[Stubedo]

Thought I was going crazy… perhaps I still am, but after the update last week, my Charge option appears to be gone! Where did it go?

 

[Maquis]

Thought I was going crazy… perhaps I still am, but after the update last week, my Charge option appears to be gone! Where did it go?

It’s now an app on the Home Screen, not in the settings.

 

[Stubedo]

Thank you!

 

[ryun]

Wow, I'm disappointed we're unable to set a global charge limit. Thought I just couldn't figure it out. I think it's cool that we can set different limits based on location, but I don't want my default to be 100%. That's a problem if I don't remember to set a charger location, or one-time charge limit.

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