First time charging the CB to 100%🤷🏻‍♂️

[acexpert]

I just got the CB last Sunday and charged it in full for the first time today. I believe I should have 320 miles on a full charge, but it’s only showing 301 miles. Thoughts?

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[Speedr]

With All-Terrain tires, you lose around 20+ miles of range. The AWD only shows 318 at 100%, so a little over 300 is about right for a Cyberbeast. The 320 is on All-Season tires.

 

[GatorCyber]

With All-Terrain tires, you lose around 20+ miles of range. The AWD only shows 318 at 100%, so a little over 300 is about right for a Cyberbeast. The 320 is on All-Season tires.

AS tires says 340 on order page

 

[igs]

That number is meaningless.

 

[2DVS4U]

I set mine for 100% last night and woke up this morning with it showing 318 miles but I am already aware that the driving conditions are going to be a big factor and after a road trip this weekend with some highway driving and some city driving and the fact that I will drive it like I usually drive my Bronco that averages 14.7 MPG (the way I drive), I am thinking If I get anything over 250 mile range it will be a good thing and I am ok with that, I will repost the outcome it a few days.

 

[HaulingAss]

That number is meaningless.

The number is NOT meaningless!

The primary range number when fully charged tells you the state of health of your battery. It will slowly decline as the vehicle ages. In order for it to be as accurate as possible, it is necessary to occasionally fully cycle the battery. While the Battery Management System (BMS) does measure power in and power out as the battery is charged and discharged, it gradually becomes less accurate until the next time the battery is discharged low enough to get an accurate read on where the bottom of the battery State of Charge (SoC) is. Going down to around 10-15% SoC should be good enough to recalibrate the bottom of the battery. The same holds true for the top of the battery. As you get near 90% SoC, the BMS can recalibrate the top of the battery.

The benefit of doing this periodically is that your SoC number (in both percent and miles) will be more accurate, and you can have a higher confidence that the built-in buffer at 0% SoC will be there if you need it.

 

[acexpert]

The number is NOT meaningless!

The primary range number when fully charged tells you the state of health of your battery. It will slowly decline as the vehicle ages. In order for it to be as accurate as possible, it is necessary to occasionally fully cycle the battery. While the Battery Management System (BMS) does measure power in and power out as the battery is charged and discharged, it gradually becomes less accurate until the next time the battery is discharged low enough to get an accurate read on where the bottom of the battery State of Charge (SoC) is. Going down to around 10-15% SoC should be good enough to recalibrate the bottom of the battery. The same holds true for the top of the battery. As you get near 90% SoC, the BMS can recalibrate the top of the battery.

The benefit of doing this periodically is that your SoC number (in both percent and miles) will be more accurate, and you can have a higher confidence that the built-in buffer at 0% SoC will be there if you need it.

Thank You so much for the explanation. ??

 

[TeslaFANa]

8

The number is NOT meaningless!

The primary range number when fully charged tells you the state of health of your battery. It will slowly decline as the vehicle ages. In order for it to be as accurate as possible, it is necessary to occasionally fully cycle the battery. While the Battery Management System (BMS) does measure power in and power out as the battery is charged and discharged, it gradually becomes less accurate until the next time the battery is discharged low enough to get an accurate read on where the bottom of the battery State of Charge (SoC) is. Going down to around 10-15% SoC should be good enough to recalibrate the bottom of the battery. The same holds true for the top of the battery. As you get near 90% SoC, the BMS can recalibrate the top of the battery.

The benefit of doing this periodically is that your SoC number (in both percent and miles) will be more accurate, and you can have a higher confidence that the built-in buffer at 0% SoC will be there if you need it.

I agree with your explanation and it's probably the most reliable number in terms of expected range at ideal driving conditions however, after owning a model S and X for 6 years I've relied on Tessie's battery state of health information and have found it extremely reliable even after not charging my cars to 100% except for the occasional long trips a couple of times per year.

Edit: I believe Tesla changed what range they show in the battery display. Initially they used to display the range with ideal conditions based on a 100% healthy battery which is why some people find that number useless BUT I believe at some point they started showing the actual number based on battery degradation. I noticed the change on my model S and X a couple of years ago. My S used to show 330 miles with 100% range for 4 straight years and all of a sudden a couple of years ago it went down to 305 which matched Tessie's information.

 

[igs]

The number is NOT meaningless!

The primary range number when fully charged tells you the state of health of your battery. It will slowly decline as the vehicle ages. In order for it to be as accurate as possible, it is necessary to occasionally fully cycle the battery. While the Battery Management System (BMS) does measure power in and power out as the battery is charged and discharged, it gradually becomes less accurate until the next time the battery is discharged low enough to get an accurate read on where the bottom of the battery State of Charge (SoC) is. Going down to around 10-15% SoC should be good enough to recalibrate the bottom of the battery. The same holds true for the top of the battery. As you get near 90% SoC, the BMS can recalibrate the top of the battery.

The benefit of doing this periodically is that your SoC number (in both percent and miles) will be more accurate, and you can have a higher confidence that the built-in buffer at 0% SoC will be there if you need it.

No it doesn't, it has no idea what your battery health is. The only thing it can measure is voltage and adjust to your driving habits. It does not and cannot possibly know which individual cells in your battery are dead.

 

[igs]

Mileage varies drastically based on driving conditions. That number is meaningless.

 

[igs]

I just got the CB last Sunday and charged it in full for the first time today.

All you're doing charging to full is destroying your battery. You want to stay close to 30%.

 

[mongo]

No it doesn't, it has no idea what your battery health is. The only thing it can measure is voltage and adjust to your driving habits. It does not and cannot possibly know which individual cells in your battery are dead.

Are you saying the BMS tracking Amps vs time (Amp hours) and voltage gives no indication of kWh available?

If Cybertruck loses a cell, pack capacity will drop 14%.

 

[HaulingAss]

No it doesn't, it has no idea what your battery health is. The only thing it can measure is voltage and adjust to your driving habits. It does not and cannot possibly know which individual cells in your battery are dead.

Incorrect. The BMS absolutely monitors the battery and tracks cell health. This is one of Tesla's core competencies.

 

[HaulingAss]

Mileage varies drastically based on driving conditions. That number is meaningless.

Incorrect that the number is meaningless. It represents the number of miles of energy contained in your battery under standardized diving test conditions (the blend of the various well-defined EPA driving cycles under standardized test conditions).

 

[HaulingAss]

All you're doing charging to full is destroying your battery. You want to stay close to 30%.

Incorrect. The battery will typically go 100's of thousands of miles, longer than an ICE engine and transmission will last, even if you charge to 100% as needed. A better way to say this is that charging to 100% on a regular basis will somewhat accelerate the normal aging of the cells. Doing it occasionally, as needed, will probably not result in noticeable loss of anything.

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