Cannot trust my truck to stop charging at 90%

[PungoteagueDave]

Dave the point of this thread is the software issue that we can’t rely on the settings to perform as advertised, not the esoteric vagaries of phantom battery capacity. I’m not interested in your interpretation of the battery capacity or what you deem safe and not having a cumulative, deleterious effect on battery life.

I want the system to stop charging when I say, per the recommendation, period. I want to be able to trust that SOMETHING works as advertised.

That. Is. The. Point. Of. This. Thread.

Dude, you made other points too. Not necessary to be so pedantic. But it’s your thread, so have at it. I agree that settings should stick and that Ford sucks with software design especially compared to my Teslas with respect to these issues. Their entire OTA update regime is also a mess, as is their module-based systems orientation. That’s a legacy far predating the Lightning and I suspect has a lot to do with this specific issue. Tesla replaces an entire image, while Ford has an old school approach that often misses elements that are updated in other modules, or resets things that were working already. The FDRS threads are enlightening and scary in this respect. Our problem is hardware and firmware that’s tied to that legacy approach, and the fact that Ford know this, so is about to introduce an entirely new operating system, interface, and approach to OTA, likely means orphaning those of us on Sync 4 and derivatives.

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[Driver8]

PSA: You have to actually SAVE your charge limit for it to take effect.

After you click to add a charging location, and find the location where you want to set the limit, you need: to go into that location, set the charge limit, THEN click the button at the bottom of the screen to continue to the charge schedule page for that location, and keep going until you get to the "save" button.

If you set it to 90% and then just hit the back button, you didn't do anything.

This might not be the root cause of everyone's problem, but it might be the solution to someone's problem, so I thought I'd mention it ... just in case.

 

[merek]

My truck charged to 100% after applying the last update, but has worked fine since.

People act like you can't charge these vehicles to 100% or it causes it to be permanently broken -- people need to just relax...100% is intended to be used, letting it charge to 100% once in a while is not a problem.

Is it mildly annoying? Sure. Is it the end of the world and Ford is out to get you? Come on guys...

 

[TaxmanHog]

Unfortunately Ford's interface has no such functionality beyond a kluge for max charge - you cannot set the rate of charge at all without going inside the Ford charger.

Depending on which EVSE, the FCSP has adjustability in the app:
Ford Pass / Account / Charge Station / Settings / Max Charge Current [EDIT] /Slide to lower level / Save

https://www.f150lightningforum.com/forum/attachments/1673485540187-png.62971/

 

[Btcook]

@trev5150 I've experienced a similar problem with my 2021 MME GT for months charging to 100%. The only thing that worked to resolve it was leaving the car turned on when plugging in and then turning off the car. After that I will randomly experience a charge to 100% after an update, but following the above it always charges to the set limit the next day.

Surprisingly I have not experienced this with my Lightning, only the MME GT.

 

[trev5150]

The only thing that worked to resolve it was leaving the car turned on when plugging in and then turning off the car

Yeah I tried that little headfake workaround- no effect.

 

[rdr854]

8 year (or 100,000 miles), but yes.

Unless you look at California, which is 10 years/150K miles.

 

[Traconesu]

Yesterday I hooked up the truck at work with the portable. I set the charge limit to 90% and it sailed right past it.

Deleted the location.

Last night update hit.

This morning, drive to work & hook it up. Create a new location. Set the charge limit to 90%. I look at it a few hours later and yeah, 100%. Can’t trust it as far as I can throw it.

@Ford Motor Company are you trying to ruin my battery so that I have to replace it the day after the warranty runs out? Asking for a friend.

You have to scroll down and save your new setting. Best to set it in sync. Settings then charge then set one time charge and save.

 

[Calvin H-C]

People act like you can't charge these vehicles to 100% or it causes it to be permanently broken -- people need to just relax...100% is intended to be used, letting it charge to 100% once in a while is not a problem.

Charging to 100% most of the time will not be a problem, and I'm speaking as a Ford Focus Electric owner for over five years. As others have mentioned, 100% SOC visible is not 100% of the battery's actual charge capability.

The issue here is that when one tells the vehicle to stop at a certain level, it is not doing so.

This is a significant issue here in Canada where most fast chargers have pricing based on the minutes you are charging, not the energy you receive. Thus, as the vehicle tells the charger to slow down, your cost per kWh starts to rise.

My FFE can't charge faster than 53 kW (from my observations) and will maintain that rate up to about 88% SOC before it begins to slow down. The FFE does not have the feature to stop automatically, though it will send a notification to My Ford Pass at 80%.

 

[trev5150]

You have to scroll down and save your new setting. Best to set it in sync. Settings then charge then set one time charge and save.

Yeah guy I know that. Thanks for thinking I'm an idiot.

 

[Traconesu]

Yeah guy I know that. Thanks for thinking I'm an idiot.

No problem, that's just one reason why your charging isn't stopping where you want it to.

 

[Traconesu]

No problem, that's just one reason why your charging isn't stopping where you want it to.

You can also set your max charge in your Ford pass app under vehicle, charge settings, preferred charge locations, then click saved locations or preferred locations, select a location, set your max charge level & save it. These are suggestions, not opinions of your intelligence.

 

[F-150Evolved]

Same issue, set charging limit will be ignored. Not a show stopper but annoying.

 

[LightningShow]

The design of their entire charging system (on the software side) is so unbelievably bad and convoluted. I have to assume they had a 3rd party design contractor build it and their in house staff doesn’t know how to fix it.

 

[TheBigBezo]

Does this happen to y'all intermittently? I tried it last night and it stopped exactly at 90% like I had set in the app.

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