Re: Leaked iPhone 17 Air battery capacity reveals new model’s biggest weakness

Marion <marion@facts.com> wrote:

On Sun, 20 Jul 2025 10:13:10 -0000 (UTC), Chris wrote :
 

Back to the efficiency thing, these are the results from just one
lab in the UK, the "Tech Chap Lab", who tested these ten flagship devices.
 
<https://www.youtube.com/watch?v=TiLNpIWNCQk>
1. Xiaomi 15 Ultra         | 5000        | 47h30m   |  5.7    | A
2. Galaxy S25 Edge         | 3786        | 32h20m   |  8.2    | A
3. Pixel 9 Pro XL          | 5050        | 41h50m   |  5.0    | B
4. iPhone 16 Pro Max       | 4422        | 36h10m   |  8.2    | B
5. Xiaomi 15 Pro           | 4800        | 39h40m   |  4.9    | B
6. Galaxy S25 Ultra        | 4855        | 38h10m   |  4.7    | B
7. OnePlus 13              | 6000        | 49h00m   |  4.9    | B
8. Honor Magic7 RSR        | 5100        | 42h30m   |  5.0    | B
9. Vivo X200 Pro Mini      | 4700        | 37h40m   |  4.8    | B
10. Asus Zenfone 12 Ultra   | 5000        | 39h10m   |  4.7    | B

 
Where did you get this table from? It does not match the youtube link at
all. For a start there were only 9 models tested plus you're missing the
OPPO Find X8 Pro and there's no such thing as a Vivo X200 Pro mini. The
battery capacities are completely wrong and the endurance times in the YT
were around 10hrs. The scores in 3rd column don't make sense...
 
Did you get ChatGPT to make this up for you?

Not surprised you didn't respond to this. You've been caught lying. Yet
again.

Only in Apple's (bogus) "internal" tests could an iPhone earn an A.

 
Unsubstantiated claim.
 

There is no proof outside of Apple's bullshit any iPhone earned an A.

 
Your claim has always been that Apple *failed* the EU tests. You have never
been able to show that. You are now reduced to arguing semantics and making
shit up. That table above is a joke!

 
Regarding....
  >>  Almost nobody understands the rating yet.
  >
  > Least of all you.
 
You know what, Chris. I appreciate that you said that. I really do.
Not because you think I know the least but because you're actually right.
 
I'm well educated, so I love being told I'm wrong (see sig).
Because it means I will learn something from you.
 
I "knew" the most of all of you on this ng, since I've been reporting this
for years, and none of you had any clue Apple would fare badly save for me.

No you didn't. you said Apple failed and would fail. It didn't and hasn't.

I knew Apple lied about their vaunted efficiency

You've never been able to demonstrate Apple's claim. The only one lying is
you.

You've now realised that battery size is not the most important feature.

 > - but I didn't know

exactly HOW the EU would test it - where you dug up exactly how they do it.

I didn't "dig it up". It's right there for anyone to look. You chose not to
look and to make it up instead.

I agree with you. I was close, but not fully correct when I stated that
it's the runtime per amp hour of capacity, since I wasn't aware until just
now that the calculation is (slightly) more complicated that I thought.
 
So THANK YOU for pointing out the complete calculation.
 EEI = ENDdevice / (Unom × Crated_Ah)
 
Up until you just now edified me (thank you!), I was thinking in current
capacity, which works fine if voltage is constant. The EU method shifts it
to energy capacity, which is a more complete measure of efficiency.
 
This is what I had thought yesterday:
 *How many hours the phone runs for each Ah of battery capacity*
 
This is what you taught me is the correct way of looking at it:
 *How many hours the phone runs per watt-hour of battery energy*

You're starting to learn...

THANK YOU.
(I suspect you and I are the only ones who understand this on this ng.)
 
It's designed to account for the voltage differences between devices.
 a. My (wrong) assessment used "current" (as the base unit).
 b. Your (correct) assessment uses "energy" (as the base unit).
 
THANK YOU.
I was wrong. Mea culpa!
 
This is the correct formula, as you had stated it was:
 EEI = ENDdevice / (Unom × Crated_Ah)
  ENDdevice === battery endurance in hours
  Unom === actual voltage measured during the testing
  Crated_Ah === verified by EU battery amp-hour rating
 
So the formula evaluates how long a device runs for every watt-hour of
stored energy, not just its size in current terms. If a device lasts longer
on the same amount of energy, it scores better.

Correct. And shouldn't have been a novelty for you. You've been told this
for a very long time.

Still, my claim that Apple lied about vaunted efficiency is completely unsupported.

Fixed it for you.