200+ mile range!?

[Stoob]

Charged my 2020 ZS Exclusive at home (7kWh) from about 90 mile range. As expected, took 3 hours then went on for 2 hours at nominal charge (0.33 kWh), then 1 hour at 0.04 kWh. When I started the car this morning, it showed 199 miles range. It has always been 168, it’s published maximum. Parked up for 4 hours (sunny afternoon, not under cover, about 22°C). When I came back it was reading 208 miles range.
What’s going on?

 

[JohnV6]

You obviously charged with E5 electrons from Shell not E10 ones from your supermarket.

I am guessing you reset the overall consumption and the range is based on the running average so with hot waether it went up. Others who know I'm sure will comment.

Sounds also like you also did a balancing charge at 100% to minimise the differences between cells.

 

[Stoob]

You obviously charged with E5 electrons from Shell not E10 ones from your supermarket.

I am guessing you reset the overall consumption and the range is based on the running average so with hot waether it went up. Others who know I'm sure will comment.

Sounds also like you also did a balancing charge at 100% to minimise the differences between cells.

“Reset the overall consumption”?
I haven’t reset anything but I did have it in the garage to check an issue with the granny charger not working. After they had had it, the first charge I did showed the 3 hours of 0.33kWh - presumably balancing. I know they reset several parameters then. Subsequently, I left it with them again to try and solve the same problem (which they had not fixed) and this (supercharge) was the first time I have charged it since then.

 

[peterseddon]

They don't call it a Guess O Meter for nothing.

 

[Stoob]

They don't call it a Guess O Meter for nothing.

If it’s nothing but a guess, what is the use of it?

 

[hmadsen]

If it’s nothing but a guess, what is the use of it?

To give you a rough estimate of what the car....right now, thinks you will be able to go, before needing to be "refuelled"

You would be better off, just looking at the % instead.

When looking at your phone it also says 85% battery charge left, not "I will run out of battery in 7 hours 4 minutes".

In a ICE car it's even worse.

You get a gauge with a dial that can indicate FULL, 3/4, 1/2, 1/4 and empty

No one complains that their car only shows "Somewhere between 1/2 and 3/4 full" and no one expects to know how many miles that equates to.

 

[mystreet]

When looking at your phone it also says 85% battery charge left, not "I will run out of battery in 7 hours 4 minutes".

Unfortunately, there is no app for the first gen ZS.

 

[hmadsen]

Unfortunately, there is no app for the first gen ZS.

I know, i was talking about you literal phone.

Your smartphone just shows you "85% remaning charge", not "7 hours 10 minutes of charge left"

I would simply suggest you to stop looking at the estimated range and just go off of the %. there are SOOO many variables that makes the range estimate one big guess.

Just like your phone.

50% remaining power on your phone can last 10 hours or 2 hours, depending on how much your screen is on, if you are calling someone and so on.

The same with the car.

Speed
Dry or wet roads
Head or tail wind
How you drive an accelerate
How much heating you have on in the car
Are you preheating batteries
Outside temperature and temperature of the battery
Is the car in Eco, normal or sport

And so on.

 

[decrep]

All true, but you have an idea of how you've been driving and how you will be driving. If it all stays the same the guess is going to be close. If it's going to vary, you'll learn by experience how much to adjust it.
If you're going into unknown conditions, just be cautious

 

[Tim Green]

I have a similar aged car to Stoob and mine has often come up with 200+ GOM figures, especially at this time of year.
Rest assured, your real range is about 160 miles.

 

[Gadget Geek]

I used to have range awareness, but these days I just drive down to 20% and find a nearby charger on Google Maps in Android Auto.

 

[hmadsen]

All true, but you have an idea of how you've been driving and how you will be driving. If it all stays the same the guess is going to be close. If it's going to vary, you'll learn by experience how much to adjust it.
If you're going into unknown conditions, just be cautious

If you always drive the same way and the same stretch with the same speeds it will become more precise.

But if you have been doing "to and from work" on city streets and country roads for a few weeks and then suddenly take a long drive on the motorway, it will be way off and if you believed the erstimated range at the start of the trip, you will be surprised when it will only do 2/3 of what it guessed

 

[decrep]

If you always drive the same way and the same stretch with the same speeds it will become more precise.

But if you have been doing "to and from work" on city streets and country roads for a few weeks and then suddenly take a long drive on the motorway, it will be way off and if you believed the erstimated range at the start of the trip, you will be surprised when it will only do 2/3 of what it guessed

I think that's what I was saying.

 

[Derek B]

I was presently surprised when I charged my ZS Trophy connect yesterday and noted 306 mile range in eco

 

[Stoob]

They don't call it a Guess O Meter for nothing.

Strikes me as a pointless indicator in that case, if not actually misleading. It would be better if the Range rocker switch on the centre console gave a percentage of battery charge rather than repeating this useless measure.

Anyway, I disconnected the 12V battery and the range reset itself to a meaningful number. I don’t trust it anymore though.

I think that's what I was saying.

This could be what happened. I drive around town mostly with occasional longer trips. That said, I’ve had the car for over a year and that’s never happened before.

 

[hmadsen]

Strikes me as a pointless indicator in that case, if not actually misleading. It would be better if the Range rocker switch on the centre console gave a percentage of battery charge rather than repeating this useless measure.

Anyway, I disconnected the 12v battery and the range reset itself to a meaningful number. I don’t trust it anymore though.


This could be what happened. I drive around town mostly with occasional longer trips. That said, I’ve had the car for over a year and that’s never happened before.

On the Tesla you can change between "SoT in percentage" or "Guess-o-meter-range"

If anyone comes to most any tesla forum and ask about the range estimate, they will get a lot of "Change it to % and forget about the guess-o-meter range estimate"

I have had my MY for just over 2 years now, i have not had it show estimated range for atleast 2 years.

 

[Tim Green]

Certainly the ZS mk1 shows battery percentage all the time. It is on the bar graph gauge under the large round power meter. OK, so it only shows it in 10% chunks.......

 

[Stoob]

On the Tesla you can change between "SoT in percentage" or "Guess-o-meter-range"

If anyone comes to most any tesla forum and ask about the range estimate, they will get a lot of "Change it to % and forget about the guess-o-meter range estimate"

I have had my MY for just over 2 years now, i have not had it show estimated range for atleast 2 years.

Certainly the ZS mk1 shows battery percentage all the time. It is on the bar graph gauge under the large round power meter. OK, so it only shows it in 10% chunks.......

I’m aware and that’s obviously a more reliable indicator of the state of the battery. But I find myself doing maths all the time! Approx battery charge (from approx percentage) times recorded average range/kWh (from the trip meter). That’s a calculation the car could do for me, preferably on demand so that it can’t go bananas as it does with its range prediction. Do any newer ev’s do this?

 

[hmadsen]

I’m aware and that’s obviously a more reliable indicator of the state of the battery. But I find myself doing maths all the time! Approx battery charge (from approx percentage) times recorded average range/kWh (from) to metre. That’s a calculation the car could do for me, preferably on demand so that it can’t go bananas as it does with its range prediction. Do any newer ev’s do this?

I agree, on my other brand EV, it does the math and shows the calculated SoT in % when i navigate somewhere.

This will offcourse also drop if i suddenly start going faster or use more power in other ways, but it kind of does the math for me anyway.

Does not mean i dont do a bit of math myself, but it usually ends up, with the car being better at estimating the SoT than i do.

 

[Ian 2455]

Charged my 2020 ZS Exclusive at home (7kWh) from about 90 mile range. As expected, took 3 hours then went on for 2 hours at nominal charge (0.33 kWh), then 1 hour at 0.04 kWh. When I started the car this morning, it showed 199 miles range. It has always been 168, it’s published maximum. Parked up for 4 hours (sunny afternoon, not under cover, about 22°C). When I came back it was reading 208 miles range.
What’s going on?

I often have 270 miles showing. On a couple of occasions, it has passed 300...but, in the real world I have actually driven 200 miles and had 28 miles left on my parking up at home!