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submitted 3 weeks ago* (last edited 3 weeks ago) by popcar2@programming.dev to c/technology@lemmy.world

TL;DW: Fast charging over 2 years only degraded the battery an extra 0.5%, even on extremely fast charging Android phones using 120W.

And with that, hopefully we can put this argument to rest.

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[-] Blackmist@feddit.uk 10 points 3 weeks ago

Betteridge's law of headlines: "Any headline that ends in a question mark can be answered by the word no."

[-] By_pander@feddit.org 8 points 3 weeks ago

„Is drinking Paint thinner really as bad as everybody says?“

[-] InternetCitizen2@lemmy.world 2 points 3 weeks ago

Corollary:

How not following trends and drinking paint thinner boosted my B2B sales

[-] Strobelt@lemmy.world 2 points 3 weeks ago

Well. It could be worse than what everybody says

[-] HeyThisIsntTheYMCA@lemmy.world 1 points 3 weeks ago

is the poupe deck really what i think it is

[-] Threeme2189@lemmy.zip 0 points 2 weeks ago

Maybe it can be modified to something like:

"Any headline that ends in a question mark can be answered by yes or no, whichever seems the most obvious."

[-] sugar_in_your_tea@sh.itjust.works 1 points 2 weeks ago

Nope:

Betteridge's law of headlines is an adage that states: "Any headline that ends in a question mark can be answered by the word no." It is based on the assumption that if the publishers were confident that the answer was yes, they would have presented it as an assertion; by presenting it as a question, they are not accountable for whether it is correct or not.

[-] Sims@lemmy.ml 4 points 3 weeks ago

"And with that, hopefully we can put this argument to rest."

That's not how the internet works, but nice try though ;-)

[-] PlutoniumAcid@lemmy.world 1 points 3 weeks ago
[-] YiddishMcSquidish@lemmy.today 1 points 3 weeks ago

You fool! You fell into the classic blunder! All this time it was I, Dio!

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[-] BlackLaZoR@fedia.io 3 points 3 weeks ago

It's as if engineers knew what they're doing.

[-] amorpheus@lemmy.world 2 points 3 weeks ago* (last edited 3 weeks ago)

If engineers were the ones in control that would mean something.

As I see it, phone manufacturers have zero reasons to keep the battery degradation low, but many reasons to push advertised capacity and charging speed. If you were cynical, you could also assume that they're trying to make sure the battery doesn't last too long because they want to keep selling new phones.

[-] binarytobis@lemmy.world 2 points 3 weeks ago

I think we all know that if an engineer went to upper management and said “I can charge these batteries faster, but it degrades the battery life by 20% over a year.” they would have said “Do it! We won’t mention that last part.”

[-] QuadratureSurfer@piefed.social 1 points 3 weeks ago

Granted, with all the planned obsolescence happening, you could also argue that engineers "knew" what they were doing.

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[-] PostaL@lemmy.world 2 points 3 weeks ago* (last edited 3 weeks ago)
[-] DacoTaco@lemmy.world 1 points 3 weeks ago

Ok, before i watch the video, no damage is not what great scott found from his testings.. ( https://youtu.be/iMn2yVoEqPs ).

so i have no idea what to believe anymore, but my (based) experience is that it does damage it. Ill have to watch later.

[-] Smokeless7048@lemmy.world 5 points 3 weeks ago

Yea, but that wasn't a great rest. I love Great Scott, but a lot of comments fairly call out his conclusion.

Most (all?)phones don't charge at full speed to 100% charge, they fast charge when the battery is almoast empty, and charge slower the more full it gets.

[-] DacoTaco@lemmy.world 3 points 3 weeks ago

Right, so basically he removed the software aspect in his tests which removes systems to protect the battery. I assume without them, it is damaging, like what great scott found.

Ye, he should have continued his experiments then!

[-] YiddishMcSquidish@lemmy.today 1 points 3 weeks ago

Those circuits he made up doesn't take into account that the phones have built in protections that alternate the input based on charge level.

[-] cley_faye@lemmy.world 1 points 3 weeks ago

I hadn't watched the video yet, but my phone's going the opposite way. It run slow charge overnight when it feels like it's going to be enough for it to be fully charged the next morning.

We really should let electronics and tight software take care of these little things.

[-] realitista@lemmus.org 0 points 3 weeks ago

If you'd watch the video you may realize it's not needed.

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[-] qualia@lemmy.world 1 points 2 weeks ago

However the Battery Saver mode on Androids that only charges the battery up to 80% DOES extend battery life. Substantial evidence shows that a high State of Charge accelerates degradation through: solid electrolyte interphase growth, loss of lithium inventory, and loss of active materials. (See: mdpi.com)

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[-] qweertz@programming.dev 0 points 2 weeks ago

I love when YT amateurs act as if they are able to produce proper studies that are relevant in any fucking way

[-] TheGrandNagus@lemmy.world 1 points 2 weeks ago

If you have a problem with it, tell us why.

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[-] MurrayL@lemmy.world 0 points 3 weeks ago

Non-magnetically-aligned wireless chargers are far worse than fast charging.

[-] BlackLaZoR@fedia.io 1 points 3 weeks ago

Wireless charging is a gimmick like 3D TV was. There's only one use case, and it's car use. But it doesn't need to be fast. In every other case it's worse than cable in every aspect

[-] warm@kbin.earth 0 points 3 weeks ago

Wireless charging sucks. It costs significantly more energy to charge the same battery to full.

[-] iopq@lemmy.world 0 points 3 weeks ago

Your phone doesn't have that much energy stored in it. 5 watt hours or so? Now consider the energy cost of making usb-c cords

[-] warm@kbin.earth 0 points 3 weeks ago

The charging pad itself probably requires a USB-C cable itself? It takes much more materials to make them than a cable...

[-] iopq@lemmy.world 1 points 3 weeks ago

It doesn't have plugging and unplugging cycles and doesn't get bent in different directions, so it will basically never break unless you use the phone while holding the charging pad

[-] KingOfSuede@lemmy.world 0 points 3 weeks ago
[-] warm@kbin.earth 0 points 3 weeks ago
[-] iopq@lemmy.world 0 points 3 weeks ago

It's literally a few watt hours. Not kilowatt hours, watt hours. I pay $0.08 per kwh, so after a few years of wireless charging I might pay $1 more

But the USB-C cord might break in less than that time and cost more. Manufacturing cords is never going to be green, but electricity can be made renewable

[-] warm@kbin.earth 0 points 3 weeks ago

The charging pad might also break and they require cables themselves, plus all the materials to make the charging pad, plus every phone has to support wireless, which is even more materials. I've never broken a USB-C cable, that's a user issue, you are either being way too aggressive with them, buying low quality ones, or both.

[-] iopq@lemmy.world 1 points 3 weeks ago

You keep on connecting and reconnecting the USB-C cable, and if you use it while charging you probably bend it.

The cable in the charging pad never gets unplugged

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this post was submitted on 09 Nov 2025
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