Is Fast Charging Killing the Battery? A 2-Year Test on 40 Phones
Posted by FragmentedChicken@reddit | hardware | View on Reddit | 141 comments
Posted by FragmentedChicken@reddit | hardware | View on Reddit | 141 comments
-protonsandneutrons-@reddit
The biggest correlation is the number of cycles. This is another reason phones should have “longer than one day” battery life.
If your phone can comfortably last two days, you’ve know halved your cycle count immediately.
Shorter 1-day battery life = 1100 cycles in 3 years
Longer 2-day battery life = 550 cycles in 3 years
jonydevidson@reddit
My xiaomi 15 battery easily lasts 2-3 days when not using the phone much.
Sopel97@reddit
i don't know how much people use their phone, but my poco m3 still lasts a week after 3 years
Skull_Reaper101@reddit
what bullshit lmfao, my phone wouldn't last a week if i left it without using. I'd probaby have to charge it once or twice
Sopel97@reddit
buy a better phone next time?
Klorel@reddit
Yeah the nokia3210 is really good!
Sopel97@reddit
looks old, not sure why it's relevant
Helpdesk_Guy@reddit
r/whoooosh
ps5cfw@reddit
Also not charging to 100% and avoiding going below 20% can also significantly improve the battery life, which means smaller, more frequent charges to keep the median charge to 50% can do much more to battery life than not using fast charging can ever do
letsgoiowa@reddit
TL;DR cap to 95% if you upgrade every 3 years or less. Cap to 90 if you want longer.
This video showed it wasn't that much of a difference for most people. A better cap is 90 or 95%. I cap it at 95% personally because Acubattery on my Fold 6 shows that it costs me 0.4 cycles to go from 95 to 100.
If you want a very long lived phone for say, 7 years, cap at 90% because each 0 to 90 is 0.42 cycles total--almost the exact same as 95 to 100%! It'll be marginally better because you'll likely be charging from 20 to 90, 30 to 90, 40 to 90 etc rather than all the way to zero.
wwbulk@reddit
If you want a long life on your phone just change the freaking battery, you can min max all you want but ultimately it’s driven by cycles
wwbulk@reddit
Watch the video..joke that this is getting upvoted
zacker150@reddit
They literally tested that in the video. It didn't make a difference.
Modern anode doping is wild.
TraceyRobn@reddit
Yes, this is interesting. Electric cars which use similar, but not the same now, battery technology try keep in the 20-80% band to maximize life.
Bradenburgs@reddit
The phones that didn't limit the charging in the video had a 50% increase in battery degredation over those that were limited.
Pablogelo@reddit
90% of people here don't read or watch videos, they go directly to the comments
Exist50@reddit
That does not appear to be the case. You're basically repeating the same myths as the video addresses
call-me-desdinova@reddit
Since you didn't watch the video, here is an AI summary:
This video presents a two-year experiment on 40 phones to determine the effects of fast charging and various charging habits on battery health.
Here are the key findings:
nhluhr@reddit
What good is preserving battery life if you're spending the entire service life using only half of that life?
w8eight@reddit
What time? I have a setting which allows the phone to charge only to 80% and just charge it when I'm getting notification that it's at 20% (which is still a daily charge)
Rentta@reddit
I think what he meant was the idea to keep median at 50 which takes some effort
w8eight@reddit
The first sentence talks about not charging to 100% and avoiding going below 20, which is most often recommended everywhere from phones to electric vehicles.
BluudLust@reddit
Yeah, and if I need 100%, for travel or something. I disable it the night before. Keeps the battery healthy for a long time
shing3232@reddit
get something like 7600mah would be greatly helpful. I usually just don't over discharge and disconnect it shortly after 100%
iDontSeedMyTorrents@reddit
Seriously, why do people have to exaggerate this so damn much. Zero time and zero effort to do things this way.
Kyrond@reddit
Nobody is spending time managing their battery life.
Just set the limit to 80% and charge daily as usual. If it starts getting under 20%, set the limit higher.
All "time spent managing" is just one time activity less than once per year.
VampiroMedicado@reddit
Yeah I agree, you either replace the phone because it works like shit (any non-top tier android is a slug in a year or two) or pay 60$ for a new battery.
TwoCylToilet@reddit
The problem is that the new batteries that are available for even the most reputable independent repair stores are often third party batteries with measurably worse capacities.
Official repair stores often charge half the price of a new phone for a battery replacement.
Many modern phones have a firmware feature to completely stop charging at your % charge of choice. It really doesn't take much mental energy.
I'm still using phones that don't have that firmware feature, I simply use a battery charge alarm app that rings at me when my phone is at 80%. I turn it off when I know I have a long day and I need more charge, and I occasionally let my phone dip well below 5%.
It's not like I don't use the full capacity when I need to or even when I just feel like it. It's also IMO much less hassle than needing a battery replacement once every maybe two years. I'm in the fifth year with my phone's original battery now, and I'm not anywhere near religious with my personal 25-80% charge guideline. I actually can't tell the difference between now and when the battery was brand new.
zacker150@reddit
What type of cheap ass phone are you buying where a battery replacement costs half the price of the phone? Even the apple store only charges $99 to replace the battery.
SimpleNovelty@reddit
I agree with just setting max charge at 80% once and forgetting about it (at least if you're not burning the battery every day, then go to 100% whatever). But regarding battery replacements it should just outlast the time to your new phone so you can use 100% capacity anyways.
VampiroMedicado@reddit
It's less of a hassle not to care about it at all.
g3etwqb-uh8yaw07k@reddit
What exactly are you doing with your phone? I use a low mid-range 2019 Xiaomi phone and besides the shit battery, it works really nice
VampiroMedicado@reddit
Normal use, if you don't notice how slow they become then good for you but to me it's annoying.
When I mean slow, is for example pressing on Whatsapp and having to see a whitescreen until the damn thing loads.
Hrukjan@reddit
Just use lineage.
VampiroMedicado@reddit
lol
HuntKey2603@reddit
you're not meant to spend it, it should manage it on its own unless you tell it to fully load in a particular moment, like an electric car.
HandofWinter@reddit
Sacrificing 20% capacity to preserve 2% capacity after 2 years just doesn't seem worthwhile.
IguassuIronman@reddit
It's not really a sacrifice. You can turn it back on whenever you need it. Personally I leave it on 80% unless I'm on vacation or there's a day where I need it. I can comfortably get through a normal day with the 80% limit and knowing I'm maximizing the longevity of the phone gives me peace of mind
deonteguy@reddit
I wish Tim Cook would allow engineers to fix that feature on iPhones. I have "Optimized Battery Charging" enabled, but I think I've only seen it work twice. It doesn't seem to do anything after the upgrade to iOS 18 and now 26.
Wrong-Quail-8303@reddit
The notion that discharging below 20% somehow harms the battery is a myth. The idea is that if you are leaving it not charging for extended periods like weeks or months, they will discharge below the dead-point. Keeping charged to 20% will give self-discharge some wiggle room. Ideally however, if you want minimum degradation, best keeping the battery at 0% (just above 2.75v), as long as you don't let the battery get below that, this is the point it will last the longest.
ps5cfw@reddit
I kinda guessed as much from my limited experience in Electronics, but I wonder if that 2.75V value is correct since modern batteries seem to have a higher voltage level than the 3.6 - 3.7V that I knew.
PumpThose@reddit
15-85 is good enough to still have 70%, whilst still avoiding a lot of the damage. 10-90, 20-80 seem too extreme, or maybe it's just me taking the middle path of the 3 assuming best balance.
ikea2000@reddit
It sounds to me that the winners are not the people slow charging, or 80% charging, but those who charge to 100% and turn the phone off regularly, like night time.
The slower your phone uses up the battery, the less you'll have to charge it. I have no idea what power a certain app uses, but lowering the energy consumption will reduce the need to recharge.
The real losers are (young) people who are addicted to social media and use the phone many hours per day. Those batteries will recharge more often.
deep1986@reddit
And if your battery doesn't last a full day? 😭
Fisionn@reddit
TL:DW
Finally we can put to rest a couple of myths that are still so widespread. No, fast charging is not killing your battery faster. No, charging up to 80% will not make your battery degrade slower to a degree you will notice.
Skull_Reaper101@reddit
bruh charging to 80% is like already throwing 20% of your battery down the drain for the sake of having better battery down the line. I get why we need it, but that's like 1 to 3 hours of screen on time on most devices.
puffz0r@reddit
Isn't phone charging already designed to not charge past the point where battery aging accelerates? So the 100% isn't actually 100%
Time-Maintenance2165@reddit
No, because there's not a single line you can draw. It's a balance between capacity. You can rate a battery at higher capacity, and it will charge to a higher voltage.
It's an engineering decision with tradeoffs and not every battery/phone manufacturer makes the same decision.
puffz0r@reddit
I thought the major manufacturers all set their "100%" lower than the rated maximum charge level for their contemporaneous models precisely because they don't want people complaining that their batteries degrade too fast?
1731799517@reddit
Any percentage is just convention, you can often charge batteries a bit higher voltage and squeeze more charge into it. 0% and 100% are just voltages selected on the curve for the best capacity vs longevity range.
Fisionn@reddit
Correct, but some brands of phones like Pixel and iPhone devices have a setting to artificially limit the charge to 80% (what the end user can visually see). And that's what it was tested and found to have a very minor impact on the actual degradation of the battery.
As a side note, modern devices already don't charge to 100% nor discharge to 0% battery levels and the % you can see as the end user is already within the recommended battery levels.
JesusWantsYouToKnow@reddit
God I hate this kind of conclusion. With all due respect to the content creator, you cannot draw these kinds of definitive conclusions from poorly controlled ad hoc testing like this. Things like limiting charging to 80% are borne from literally decades of research and laboratory controlled testing of different electrolytic chemistries. There are scads of people with PhDs spending their lives trying to move the needle on improving battery tech and eking out a few extra percent capacity or performance.
Modern batteries are well regulated and work really well with modern PMICs to limit degradation, but it does still happen and it happens a lot faster under certain circumstances.
The kid even admitted this was the third iteration of testing he had to do because he wasn't getting statistically significant results. That should absolutely raise your eyebrows that perhaps he doesn't fully understand how to create these scenarios and test these battery chemistries in ways that would expose the degradation everyone in the industry knows happens.
Zestyclose-Lunch-430@reddit
how exactly does any of this prove that users will see a meaningful improvement in battery life by limiting their phones to 80%? if higher degradation from charging all the way to "100%" doesn't happen when tested like this, how would it manifest in "normal" scenarios? aka, how does this test differ in a way that would affect the results from real world usage? if you have to construct a super specific scenario to prove that limiting does anything that users would care about, it's not good enough proof.
JesusWantsYouToKnow@reddit
I'm going to assume this question is in good faith, so I'm going to answer accordingly.
Because people actually use their phones, and in the process of using their phones they aren't just sitting running a loop on somebody's table. They get hot, they get cold, both of which drastically alter the wear rate of the battery when charged under those conditions. Modern PMICs manage this pretty well, but only to an extent. The test presented here represented an absolutely ideal scenario to prevent wear on the batteries; repeatedly cycling them in room temperature conditions is the textbook way to avoid any kind of wear.
I don't think fast charging will have any appreciable effect on increasing wear on batteries because our ability to monitor cell health and control charging with PMICs is quite precise. I do know that charging to 100% and discharging below about 10% while thermally stressed would rapidly cause wear on these batteries.
1731799517@reddit
Newsflash: those decades of research are worthless for anode materials and electrolythe chemistires only developed a few years ago.
JesusWantsYouToKnow@reddit
Newsflash, they are applicable to literally every battery chemistry that uses lithium. Let me know which virtually every mobile phone battery uses (save for a few silicon-carbon outliers).
This thread perfectly encapsulates what I mean. Downvotes for having domain specific knowledge because amateurs watched a YouTube video made by hobbyists.
Zestyclose-Lunch-430@reddit
you haven't provided any actual information as to why this test is wrong. in fact, you're starting with "this differs from what I believe, so it must be wrong" and the only justification is an appeal to authority.
here's another appeal to counter yours: these phones are engineered so that charging to "100%" is perfectly fine and won't degrade performance.
Meanie_Cream_Cake@reddit
Your comment was TL so I DR
S4luk4s@reddit
So like 80% of the people on the comments here can't be bothered to watch a 7 minute video, but have the time to give their personal opinions not based on data? Like what???
airinato@reddit
I mean, I have no time for a 7 minute video that can be explained in one graph and one paragraph in 20 seconds.
Hate that YouTube has normalized wasting your fucking time.
Fritzkier@reddit
Look, I agree with you. I prefer text over video format because I can skim over text faster than video so I didn't waste that much time.
But why they bother giving personal opinions not based on data, especially when it's directly addressed in the video. Like if they really have no time then why discuss it without skimming/reading/watching the main topic in the first place?
airinato@reddit
Thats literally the point of these threads my dude. 99% of us come here to see someone TLDR that shit.
And over half this thread is just shit talking people that don't want to waste 7 minutes of their life and act like they are just so much better because they'll sit through a dumb video.
Zestyclose-Lunch-430@reddit
imagine being on the hardware subreddit but being so uninterested in hardware that you post negatively about the format of information because it's not brief enough for you
airinato@reddit
Imagine being so damn dumb you think that comment is worth making.
audaciousmonk@reddit
Right, but would you pay for that content? Would you buy access to view that graph and paragraph?
Because someone had to spend time / effort / money to get that result.
Or do you just expect everything for free, but can’t be bothered to accept the advertisement model
S_A_N_D_@reddit
I'm with you. I would rather just text. I can read faster than a video can present information, and that's not even accounting for all the filler, intro etc.
Most youtube videos I find myself running at 1.5 to 2x speed, but even then when something is in a video format I'm much more likely to just not watch it. In text format, I'll start by skimming and then if it looks interesting, I'll read more in depth. Even for in depth reading i'll still likely spend less time than a video.
S4luk4s@reddit
If you try to explain this in one graph and paragraph, you end up with people not understanding and misinterpreting the results. I the video they give context, explain testing conditions, common concerns, manufacturer recommendations and so on. Why do you think all of that is not worth a few minutes of your life, if you are interested in the information?
FlyingBishop@reddit
that sounds like a few paragraphs I could read in a minute. Video is just not a good format for this sort of info.
airinato@reddit
Because I grew up before YouTube and know how to skim through a page and find only the needed information
Meanie_Cream_Cake@reddit
That's what Tiktok doped short attention brains will get you. TLDR and TLDW
Btw, I didn't watch either.
bobloadmire@reddit
First time on Reddit?
booi@reddit
can someone summarize what u/S4luk4s said
S4luk4s@reddit
Tldr: Redditors, seriously??
Visible-Advice-5109@reddit
Why would anyone want to watch a 7 minute video to get an answer that takes 5 seconds to communicate?
letsgoiowa@reddit
Think about it for a minute. What are scientific papers usually full of? Methodology, testing, results, and then finally interpretation. Do you think if he posted a 20 second short people would actually believe it?
Nah! You'd get tons of naysayers in the comments saying "lol you tested it wrong" or "I don't believe you actually did it"
VampiroMedicado@reddit
That's how it works around here chief.
AnechoidalChamber@reddit
I know this is completely anecdotal and should be taken as such, nevertheless I practiced a 20% 80% charge on a S7.
The battery comfortably lasted 7 years and still had more than 80% health left when I gave it to my mom.
If I hadn't done this, there's no way the battery would've lasted 7 years. The battery on my S4 lasted 2 years doing nothing special and charging to 100%, I went through 2 of them in 4 years.
Got a S15 now and you can bet your whatever I'm still doing 20-80%.
d4rk1@reddit
difference is negligible, fast charging FTW!
shopchin@reddit
According to you or the video which I don't want to click on. I really don't know
mr_tolkien@reddit
You’re missing out on one of the best YouTube channels
SupermarketAntique32@reddit
Fr. HTX production quality and effort surpasses any tech channels including LTT, MKBHD, and even GN.
nhluhr@reddit
The difference in battery life on units that got slow-charged vs units that got fast charged was only 0.5%.
super1s@reddit
Well within any acceptable error rate. So in all likely-hood there is no difference at least in this number of charges.
d4rk1@reddit
watch the video, they really put big effort (and money) making it
bphase@reddit
And still it was much shorter than most rather low effort reviews of some new product.
manek101@reddit
You can just pull up your assistant and paste the link, it'll quickly summarise the video
fthesemods@reddit
Oh so all the redditors were wrong about the fast charging Chinese phones? Golly gee.
Exist50@reddit
More than just redditors. Even a former anandtech writer was going around here and elsewhere claiming these Chinese companies were just recklessly killing batteries. Turns out that was a crock of shit. Easily than admitting Apple or Samsung are just behind?
DasWorbs@reddit
At 5:51 they say it was just 20 phones over 6 months
That's kind of nothing? I hope most people keep their phones for over 6 months and so the title is incredibly misleading, it just took them 2 years to perform the tests since they kept making mistakes in gathering data.
Even if it WAS over 2 years, I would hope most people aren't swapping phones that often? I tend to keep mine between 5 and 10 years (notwithstanding being forced to buy a new one because I broke it or w/e)
This sounds critical but the video itself is really well made, and the tests themselves seem robust, but the timescale is just not really that relevant, in my opinion.
TheCookieButter@reddit
What a great video. Surprised how little difference they saw. <0.5% after 500 charge cycles suggests fast charging isn't worth worrying about at all. May as well use it in automatic scenarios (i.e overnight charging on my Pixel), but not worth any extra thought.
The 30-80% seems more worthwhile in terms of longevity, but probably not worth the extra thought or having to use your device with -20% battery most of the time to save 2-4% capacity over 1.5 years.
I actually started using my Steam Deck with an 80% charge limit recently, mostly because I found it was convenient to play plugged in most of the time but use standby mode. I ended up charging from my 90%->100% all the time, so I thought I may as well limit it at home so I'm charging from 70%->80% instead. Seems this may actually be worthwhile based on their 30-80% Vs 0-100% results.
Phones, less so. My Pixel 6 Pro is 4 years old now. Assuming I saw a ~3% battery capacity gain every 1.5 years improvement from using 30-80% I could have an extra 8% battery capacity compared to using 0-100%. That seems dangerously close to worth it, but since stuff comes up in real life and 80% battery life could leave you unexpectedly short. Plus, a 4 year old phone probably won't be around much longer to reap the full benefits.
VastTension6022@reddit
I've been doing 2.5W charging though a usb A port recently. Maybe it won't change anything, but why rush when you have the whole night.
Buckwheat469@reddit
Android does intelligent charging based on usage. At night it'll set a charge rate so that it's full when the alarm goes off.
I used the 80% option for about a month and eventually got so mad that my phone was below 50% before lunch. I turned that off when I couldn't maintain a charge all day.
Pixel phones recently got an update that seems to really fix the battery life. It's 1:51PM right now and I haven't charged my phone all day since 7:00AM. It's currently at 85%.
Tman1677@reddit
Same for my night time charger. Even if it doesn't really matter, we've got all night so why risk it? That being said, for my day time backup charging give me the fastest cable you've got, I want it ready to go this instant.
ThreeSixty404@reddit
Hmm, I watched the video, but I don't fully trust it. I believe fast charging can be a major factory in battery life degradation. Especially if there isn't an adequate cooling system in place. High heat is killer for electronics.
TotalManufacturer669@reddit
What if, hear me out, phones have temperature sensors in them and can therefore manage charging speed according to how hot they are?
Guess what? They do.
God I hate clueless redditors who think they are smarter than tens of thousands of engineers and billions of research budgets poured into smartphone industry every year.
Structureel@reddit
I only came here to see all the confidently incorrect comments.
letsgoiowa@reddit
This thread is full of people who haven't seen the video.
Fast/slow charging doesn't matter significantly. What does matter is 1. number of cycles (most important by far) and 2. Depth of charge and discharge.
If you want to check your own phone, grab an app like Ampere or Accubattery and it can show you battery data. Accubattery finds for the Fold 6 specifically I save 40% of a cycle from 0-95 vs 0-100 so it's a no brainer for me. Capping at 80 would be even longer lasting sure but I'd rather have the extra 15%. It says charging from 0 to 80 costs 0.21 cycles instead of 0.6 for 95 so if you want a hilariously long lived battery, sure go ahead and do that. I'm expecting to replace this phone every 3 years though.
Sosowski@reddit
Well, is it or not? I’m not watching all of this.
manek101@reddit
It is bad, but nowhere near what people claim it is.
It's definitely worth it to fast charge.
VastTension6022@reddit
Charge limits on the other hand do seem to make a more noticeable difference but have the dilemma of artificially reducing battery life vs naturally degrading battery life.
surf_greatriver_v4@reddit
Yeah that's what I don't get with people that charge limit to like 80%
Kneecap your capacity every single day by 20% just so in 2 years time your battery degrades 2% less than normal
letsgoiowa@reddit
Cap it at 95% and get the majority of the benefits. You save 0.4 cycles by doing that and you aren't ever needing that last 5% anyway unless skill issue
manek101@reddit
I keep my charge limit to 80% on regular work days.
Phone easily lasts the day and it charges back quickly in 10 mins when I need it for the night.
When I'm going out or don't have a work day, I keep it at 100%.
Helps me preserve the health in the long run and doesn't bother me at all.
Emergency-Machine-55@reddit
Squeezing an extra year of life out of a $800+ phone is probably worth the minimal effort of enabling the charge limit.
No_Eggplant_3189@reddit
Maybe the device would have better resale value?
bobloadmire@reddit
Because 80% is far more than enough to get through the day so why not? There's no downside
JtheNinja@reddit
80% is enough for a typical day when I have other devices to use instead. I turn the limit off if I know I’ll be gone all day, so I use the extra capacity when I actually need it. When I’m not using it, I don’t wear out the battery by preparing it anyway
Zamundaaa@reddit
0.5% battery capacity in 2 years is not at all bad, tradeoffs that good are rare!
wowbaggerBR@reddit
yes, nobody needs to do this experiment, nor watch the video, to realise that heat + battery = bad.
manek101@reddit
But the amount of extra heat generated due to fast charge is highly overstated on this sub
yungfishstick@reddit
It depends on the charging standard. I have an Axon 40 Ultra that charges at 65W using Qualcomm's fast charging standard and it gets about as hot as the sun. I also have a OnePlus 13 that charges at 80W using SuperVOOC and the phone gets a little warm and that's it.
HandofWinter@reddit
SuperVOOC works wo well because it moves much of the heat-generating circuitry out of the phone to the charging brick. It should be the standard, it's just better.
hollow_bridge@reddit
The heat has nothing to do with it being proprietary or the charging standard. Heat is from one of two things, this resistance in the battery, or the resistance in the charger. There's different qualities of gan chargers, better ones generate less heat, it's just that simple.
manek101@reddit
Heat is due to the standard solution being worse than the proprietary solution.
VOOC standard simply used to perform better in transferring the heat the the adaptor instead of the battery; and it being proprietary helps OnePlus apply it better.
that_70_show_fan@reddit
How can you claim that without any experiments?
wowbaggerBR@reddit
I had outstanding Physics teachers
ridukosennin@reddit
But obviously no one to teach humility 😆
wowbaggerBR@reddit
where am I lacking humility?
ridukosennin@reddit
Ask your physics professor
Bderken@reddit
Cooked that bozo
Bderken@reddit
Man Redditors like this suck so much 🤣
TwoCylToilet@reddit
Exactly. This thread is full of absolute clowns who are proven wrong with this exact experiment. This was definitely useful content.
We all "know" that fast charging slightly degrades lithium batteries due to heat, but how slight is slightly? Should we avoid it? Should we deliberately use a slow charger overnight? All the time? The data helps us decide.
From what I understood, the charge capacity of the fast charged phones degraded by an additional 0.3% (iPhones) and 0.5% (Android) of total capacity across 500 charge circles when compared to slow charged phones on average.
Pessimistically speaking, if you charge your phone once every two days from 5% to 100%, fast charging will take 2.74 years to cause around 0.5% total capacity loss.
If you charge everyday, 1.37 years for 0.5%
Charge twice everyday, 8.22 months for 0.5%
Use this data however you want. I'm going to continue doing 25-80% with 21 - 25W PD chargers (because I'm cheap).
Footnotes:
Android fast charge @ 120W peak, slow charge @ 18W peak
iPhone 12 fast charge @ 20W peak, slow charge not reported. I assume 10W peak.
li_shi@reddit
W are speaking 10% bad or 0.5% bad?
Without this information the knowledge its pointless.
Seantwist9@reddit
but the video says others
diemitchell@reddit
agreed, we should charge batteries at 5v 0.01a so that the battery lasts longer
also, make it so we have galaxy s3 performance at a 2nm node so we stress the battery as little as possible with maximum efficiency
PracticalSecret7245@reddit
Obviously yes.
shing3232@reddit
Not that much, The temperature, duration of heating it up and cycle is what reduce battery life.
gg06civicsi@reddit
I want to see if 80% charge limit does anything as well
imreadytomoveon@reddit
Too bad you didnt watch the video youre commenting on.
TotalManufacturer669@reddit
It's actually also in the video
Keeping battery level between 30-80% does help with preserving battery life by like 2% after 500 cycles (\~2 years of use) compared to constantly charging it from 5% to 100%.
The thing is, by capping charge at 80% you are gimping your battery life by 20% right from start. There seems to be no payoff whatsoever doing it imo.
elitelurkerr@reddit
guess the payoff is if you plan on keeping your phone longer than you'd still get security updates for it.
Durian_Queef@reddit
My Samsung phone from 2021 has battery protection on since the day I received it, battery still lasts all day.
deonteguy@reddit
My iPhone has it from 2022, but that feature broke in iOS 17 and Tim Cook hasn't allowed engineers to fix it.
PumpThose@reddit
80 or 85?
Grexxoil@reddit
If it's like my Samsung it's 85.
virtualmnemonic@reddit
They tested it in the video. It has a small effect.
Lorem979@reddit
Fast charge = Fast discharge
Slow charge = Slow discharge
Devatator_@reddit
That's not how that works at all
Tasty-Traffic-680@reddit
Unfortunately I think more testing is required across multiple brands and battery technologies like silicon carbon which is becoming popular but the chances of a YouTuber being able to keep that up is pretty small. I'd be interested to see how battery life has held up long term for users of phones with super vooc and other 50+ watt charging tech that has been around for a couple of years.
I just bought a Motorola phone with "68 watt" fast charging but in reality it's more like 45 watt. We'll see how well the battery holds up. I have an older moto g7 plus which supports 27 watt fast charging but after roughly five years, the battery's internal resistance has creeped up enough that it doesn't actually charge that fast anymore. As phone SOCs get more and more power hungry at peak I wonder how battery degradation will affect performance. I predict more manufacturers incorporating age/voltage based throttling like apple does with iphones.
antonioxbj@reddit
Just got it recommended as #1 video on my home page. It's amazing and props to the creator for making such a video. Takes lots of time and *energy* to do that.
OrangeKefir@reddit
My xcover has a replaceable battery anyways.