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From: Frank Slootweg <this@ddress.is.invalid>
Newsgroups: misc.phone.mobile.iphone,comp.mobile.android
Subject: Re: What's the actual *advantage* of not having an sd slot?
Date: 3 Jul 2025 13:18:55 GMT
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Marion <marion@facts.com> wrote:
> On 2 Jul 2025 12:21:53 GMT, Frank Slootweg wrote :
> 
> > every brand
> > name charger is a *correct* charger, because it implements the USB power
> > protocols.
> 
> I'm all about facts.

  As many others have also said: No, you're not. Most of your 'facts'
aren't facts, but opinions, assumptions, etc.. But let's not go there
again.

> But, maybe I misunderstood you, and if I did, I apologize. 
> And, it seems clear you misunderstood me also. So let's fix this.
> 
> Starting over, let's stick with just the facts.
> 
> The fact is that every device will take a range of chargers and protocols
> (which everyone knows) but what most people absolutely do not know is that
> some USB-charged devices will not charge with some USB chargers. Period.
> 
> That's just a fact.
> 
> I didn't see any evidence that you understood that fact.
> Nor did I see any evidence that Arno understood it.
> 
> While it sounds counterintuitive (since it's a USB charger) the problem is
> in the wattage and in the protocol. And obviously, in the negotiation.
> 
> These are just facts. 
> 
> If you understand those facts, then that's fine with me.
> This all started with someone saying that any USB charger will work.
>
> That's not correct.

  I don't think anyone said *that*. I said:

[Rewind/repeat:]
> > every brand
> > name charger is a *correct* charger, because it implements the USB power
> > protocols.
[End repeat.]

  But that is *not* saying "that any USB charger will work", where
'work' means charge the device. (Because a too low power/voltage
might/will not charge a high-power device and a too high-power charger
might not charge a (very) low-power device.)

> I know of cases where USB-C devices will NOT charger with a smart charger.

  What's (in this context) a "smart charger"? *Any* USB BC/PD charger is
a 'smart' charger because it implements the USB power protocols.

> It's documented in their instructions.

  I've seen no such specific instructions, only general CYA comments
like "use a correct/compatible/<whatever> charger". YMMV/YMWV.

> I also know that there is a MINIMUM required wattage specified as of June
> 20, 2025 for all phones that are sold in the EU.
> 
> Notice this phone requires as a minimum, a 10-Watt charger.
>  <https://epreol.ec.europa.eu/screen/product/smartphonestablets20231669/2339789>

  Duh! Of course newer phones need more powerful chargers to have
acceptable charging times.

> While I have no idea what happens if you try to charge those phones with a
> lower-than minimum wattage charger, I do know the first phone I looked up
> had a 10-watt minimum wattage. So a 5-Watt brick is well below the minimum.

  My first phone had a 400mA (2W) charger. Second had a 1A (5W) charger.
Third/current (Samsung Galaxy A51) has a 10W/15W charger, but happily
charges on a 1A/5W charger.

> In summary, there are two facts I know that most people do not know.
> 1. Many USB-charged devices will NOT charge with the newer chargers, and, 

  "newer chargers" is a meaningless term. Either they confirm to the USB
BC/PD specs or they don't. For example: A tad silly to call my 12 year
old charger a "newer charger", don't you think!?

> 2. Every phone sold in the EU has a minimum "required" charging wattage.
> 
> As long as you and Arno are aware of those two facts, I'm fine.