Tesla is penalising LFP owners for following Tesla’s own charging instructions.

Find a l2 charger. Superchargers simply aren’t meant for charging to 100%.

I don‘t understand: I thought you were only hit with idling fees \*after\* you hit 100%?

the BMS won’t calibrate anyway when charging from a DC charger, so there is no point to follow that guidance for you. You need to plug the car home and let is sit there to do its thing.

I think the original intention was for L2 charging at home or Tesla destination charger; not applicable for the superchargers that cater to all types of EVs and meant for stop and go. Just my 2 cents🤷‍♂️

They are called "congestion" fees, depends on the area and time, but if you go above 80% or 90%

And L2 chargers are almost always cheaper per kW than supercharging. Some superchargers even have L2 chargers right next to them.

It's my understanding that they only charge congestion fees over 80% if the charging station is at least ¾ full. Unless you're charging at a busy station during popular times of day, you shouldn't get hit with congestion fees, though it will still warn you about them.

They charge congestion fees over 80% if the station is more than 75% full.

When you arrive at a supercharger, it will sometimes tell you charging is limited to 80% due to high volume. I think it might hit you will fees if you push it beyond that.

That is wholesale not true. My 2023 Standard Range calibrates just fine on Superchargers.

That’s awful! I’ve never experienced this, but I haven’t been to busy superchargers in about a year. As an owner of an LFP car with a relatively low range, this seems unacceptable.

The 100% thing isn't even for battery health. It's for the BMS to get a more accurate measurement. I just charge to 100% if I can find a charger at work that gives full L2, or if it's been a few months I'll charge majority at the supercharger then plug in the L1 at home. I bought the L1 since I knew I wasn't going to be installing a L2 at home anytime soon. The mobile charger can be repurposed later if I get around to installing a NEMA 15-50 or whatever receptacle needed

You should charge to 100% at home or at a L2. Tesla's instructions weren't meant for someone who exclusively uses Superchargers, because that's discouraged in general.

I can't relate as someone who has a charger, or an outlet near enough to my parking to top off at home, but I can see it being frustrating for people without garages / power near where they park each day. Can always stop by a chargepoint to reset once a month.

Correct, but the point is that Tesla themselves recommend that your LFP battery is charged to 100% at least once a week.

Aren't they - Tesla have told me it is fine to do so?

Is plugging into a 110v plug overnight a possibility? Then every month or so you could go to 100%

But then why recommend that LFP owners charge at 100%?

But Tesla recommend that LFP owners charge at 100%?

I think it’s safe to say that most people are doing this via home charging.

For BMS calibration? As multiple other people have said, you don't need to do it all the time.

I'm not disagreeing and I think the point has been lost amongst the comments. You can't ask for 100% charging at least once a week and then in parallel charge and penalise customers that are required to stay longer to charge to that 100%. It makes zero sense. Not everyone has at home charging.

It's so you're battery management system is able to know how much charge you have left in your battery. If you're running right down to the limit (like < 10%) then it might be a problem ? But if you are hanging out in the middle of your charge it doesn't seem to be. FWIW I run 65-45% most days and sometimes it's weeks and weeks before I go up to 100% for a longer drive.

Because it's better for the battery chemistry. I've hardly ever charged at a supercharger that would have assessed the fees you're worried about. I mostly charge at home but supercharge once or twice a week, and the ones I go to usually aren't that busy. There are plenty of people with LFP batteries for whom this isn't a problem.

To my knowledge, it only happens if the charging station is over 75% full. I don't think it's an unreasonable policy to charge extra to people who have a lot of range and are in the slow part of the charging cycle while other people are waiting to charge.

Why are you charging to 100% at superchargers?

Technologically fine but not logistically.

Charging to 100% will not prolong the health of the battery, it only helps calibrate the bms. Just do it when feasible. Not necessary

Oh ffs. I don’t disagree but asking to charge to 100% it’s the fact that they want to charge owners an idle fee. I’m fighting your corner - morons!

Charge it to 100% when the supercharger isn't so busy. They charge the congestion fee because it takes forever to charge to 100% and it's not fair to others. You don't need to charge to 100% every week. Do it once a month or once every 2 months. The 100% every week is really meant for l2 home charging, not supercharging.

It’s always busy due to them opening it up to other brands.

Its not better for LFP chemestry to charge to 100%, actually its its just for the BMS to know where we are in state of charge, because LFP voltage curve is flatter. So when we are low, ex 15% left, if BMS estimate wrong we might be at only ex 5%, then you risk to get stranded on highway, you miss next super charger. ONLY charge full before long trip or if you risk be lower then 10%. LPF also degrade faster when over ex 85%, avoid as much as you can.

Good for you having everything work out for you. Please continue to judge those who ha e to rely on fast chargers

Easy to say