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by stevenhuang 1127 days ago
Any type of charging generates heat.

At any wattage, wireless charging at 70% efficiency will always generate more heat than fast charging at 95% efficiency.

If you want to compare 5w wireless charging to 100w fast charging, even then it's not obvious the wireless charging is better, because it will still thermal throttle and stay throttled for longer, at least a few hours. Meanwhile fast charging will charge it to 80% state of charge in half an hour and then trickle charge to full.

The notion that this is somehow "debunked" is just against physics.

https://www.androidauthority.com/100w-wired-vs-wireless-char...

1 comments

Well I don’t know, if people tested and don’t see any difference, wouldn’t that count as “debunked”?

A quick internet research shows the Internet consensus is, wireless charging does not degrade batteries faster. At least it seems there is no empirical data proving otherwise, which at the very least would indicate the difference is small, if any.

I think until I see (good) empirical data proving either of the theories I’m going to stay skeptical.

The more heat lithium ion batteries are subject to, the more they degrade.

For any given wattage, wireless charging will always generate more heat.

It really isn't more difficult than that. You don't need to be skeptical about physics.

I've already addressed in my first post the differences are likely marginal, as people get new phones within a few years anyways. Doesn't mean additional degradation didn't happen.

I give up. I'm curious, you are clearly not.

Why does everyone seem to disagree with you?

Does the fact that the copper coil get hot instead of the battery itself have any influence?

Do you have empirical data?

Etc. Etc. Just some examples, from the top of my mind...

When one is curious they tend to find the answer out themselves.

Copper coil in phones are next to the battery, it's going to heat up the cells.

I've already sent you one link and you've not acknowledged it. Good luck in your epistemic endeavors.