iPhone 12 Why does the iphone 12 charges wirelessly at 15w only with the magsafe charger?

[chad.petree]

I don't get it, why does the iphone 12 charge wirelessly at 15w only with the magsafe charger? What do the magnets have to do with charging speeds?

 

[chabig]

The magnets don't affect the charging rate. They only serve to attach and align the puck.

 

[Sir Ruben]

Because...Apple, unfortunately.
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[Rafterman]

Do we KNOW for sure that only Apple 15w chargers work?

 

[mtneer]

Revenue Management... Apple has a "Made for iPhone" business interest to protect.

 

[Taz Mangus]

Do we KNOW for sure that only Apple 15w chargers work?

In the keynote they stated that Qi chargers will be capped at 7.5w.

 

[Renho]

To make more money! They will open it up later on down the road but only after the masses purchase theirs. See at first everyone “has” to buy their chargers. And everyone who doesn’t own an iPhone 11 has to buy a charging brick now.
Only apple chargers will charge at 15w everything else 7.5w

 

[njek]

I don't get it, why does the iphone 12 charge wirelessly at 15w only with the magsafe charger? What do the magnets have to do with charging speeds?

It's not the magnets, it's the NFC identification of the Apple charger v a 3rd-party (Qi) charger

 

[chad.petree]

It's not the magnets, it's the NFC identification of the Apple charger v a 3rd-party (Qi) charger

As far as I know there is already a
15w qi wireless charging standard, why not go the extra milen and support that as well?

 

[PTLove]

Very literally to make more money by making you buy another Apple product. That is it.

 

[Nozuka]

The device heats up more, when the charging coil is off-center. This leads to slower and inefficient charging and also heats up the battery more -> battery life takes a hit.

 

[jdlindsey7]

The device heats up more, when the charging coil is off-center. This leads to slower and inefficient charging and also heats up the battery more -> battery life takes a hit.

That's just not true. If the phone is not centered on the charger correctly, whether MagSafe or Qi, then the phone will not charge. Just like plugging in a cable to your phone, there is a hand shake that has to occur before the the charging will proceed. If the phone is not line up properly over the coils then no charging takes place (so your battery and phone will not be harmed be misalignment).