Most high-quality LiPo-powered devices already do this at the hardware-level. The 100% level you see on the software is usually 80% actual charge on the battery.
For Android, there are a multitude of apps, such as Wattz that will tell you the actual voltage of the battery. Full may be 4.2V or 4.35V depending on the chemistry used. ACCA (root required) will let you limit charge rates and stop charging at a certain percentage.
Staying under 4 volts (around 60% for most phone batteries) will vastly extend battery service life. 80% is a bit less extension, but still far better than charging to 100%.
i was looking for something like acca since forever
foss discoverability needs some mad work
that doesn’t answer the question of whether there’s a way to tell that their battery is limited to 80% on hardware level, though.
Late reply:
https://oukitel.com/pages/oukitel-wp33-pro
This replaces my old phone, Bluetooth speakers, battery banks, all that. Hella heavy, but so is all that other crap. I can drop it 5’ deep in the swamp, go down and get it. Still testing!
Charge it from a smart power supply from battery at 1 to 100% then it can show you the number of mah/h it took to charge it.
I have this power supply which also has USB-C https://a.aliexpress.com/_mrChiQ6
It’s a pity they don’t offer the option to ‘supercharge’ to 100, so you get extended battery life when desired, when you know you will need it. Say, going camping, or plan to use the phone a lot for whatever reason.
Isn’t the charge limit of the battery arbitrary? The manufacturer can set whatever target voltage they want , so it’s meaningless to say they limit the battery to 80% when they decide what 100% is.
I don’t doubt the fact that they take some margin to extend the lifetime of the battery, but if we take iPhones as an example, they:
- charge at a slower rate when nearing 100%
- try to postpone charging the final 20% until the last moment before disconnecting from the wall outlet
- can be software capped at 80% by the user (in newer models)
This makes me suspect that that the margin between what’s reported in software as 100% and the actual capacity of the battery is less than 20%. This also makes sense from the standpoint of the consumer expecting a long battery life on their expensive high-end device, putting pressure on the companies to make the margin smaller and the charging algorithms smarter. Just my observations, of course.
This sounds like the battery and the charger’s problem to handle, not mine.
All this tech, all this automation for every damn thing, and people keep coming at me like I’m supposed to do everything manually with my fingers and eyes and maybe an alarm or something to keep me on schedule. No. Stop it.
Make the charger handle it, or shut up. Make the phone, the charger, and the battery handle it together, you know, with digital automation. Do not even mention it to me.
Your device manufacturer has designed it to break in as many ways as possible so you have to buy a new one.
Why do you think everyone switched to non-removable batteries?
If you don’t take responsibility for your device, you are just like the people that think not owning your own hardware is fine.
Why do you think everyone switched to non-removable batteries?
Well the purported reasoning is that less shielding is required. Seems plausible but IDK how true. I assume it’s partly true.
Some day you will learn that nearly every justification made by corporations like this is bullshit.
But I bet they’re glad you continue to spread it so loyally.
Samsung phones have the capability to do this. There’s a setting you can set to only charge to 80%. It looks like they mention that in the article.
Android phones in general have something called Adaptive Charging that attunes to when you normally need a full charge. For instance if you are charging at night while you’re sleeping it will charge slower than it would during the day to improve battery health.
100% agree. Mate, there’s an another ongoing post on lemmy about autosaving documents, and how everyone seems to think that saving files with their fingers pressing keys on a keyboard is the best approach possible in 2024 because software just can’t do this reliably.
Of course everyone also knows better than their charger, battery and device.
Yup. If it’s such a huge issue, phones should only charge to 80% and report that to the user as 100%. But phone manufacturers won’t do that, because users want to be able to report the longest battery life possible when selling new phones. They don’t care that the charging habits are bad for battery longevity, because the user has already purchased the phone.
No, it’s your problem.
The manufacturers correctly surmise that most people prefer a battery that holds it’s charge longer over the first year or so, rather than a battery that will last more years.
If your preferences differ from that of most people, then you need to exercise your preferences.
You sound quite irritated. iFixit doesn’t even make phones. Direct it elsewhere.
He’s directing it to a forum of people under a topic regarding phones not being optimized to charge past 80%. Quite a fair frustration I’d say, since most people charge their phones while sleeping. The technology should stop charging automatically
Most Android phones do, hell even the experimental phones like PinePhone do. You just have to flip a toggle.
Sir, this is a lemmy. It’s all about figuring out how to be the most outraged rather than the most rational.
Just build phones with the understanding that batteries are consumables and make them easy to replace and standardized. Then swap in a new $5 battery when you need to so. Make the raw materials reclaimable too of course.
That’s the point of what this guy is saying.
But the point of making batteries not easily removable (besides the waterproofing factor) is that when a repair shop charges them $150 to do it, lots of people will justify putting that money towards a new phone instead.
As someone who works on phones as a hobby, I’ve seen that the percentage of people who will either hire someone to do it or buy a different phone is near 100. It’s absolutely an intentional planned obsolescence.
Sure, if my battery lasts literally 30min, I’m totally not forced to buy a new phone. I’ll just fast charge my way through the world.
This is what the new European bill is forcing manufacturers to do.
Batteries of handheld electronics have to be easily replaceable.
No. People online have really misrepresented that bill.
All it says is that it should be easily replaceable by someone of moderate skill. I.e. still having to pry open your phone carefully, but now without using strong adhesive.
It also doesn’t apply for phone batteries over a certain size, or batteries that will still retain a set amount of capacity after a few years (I think 73%).
People are heavily, heavily mistaken if they think it’ll be a return to the days of trivially removable batteries.
The biggest barrier for “most people with moderate skill” is having to acquire equipment to replace the battery. Once it becomes too much effort and cost it’s better for most consumers to take it to the manufacturer or 3rd party service for replacement.
I stopped replacing batteries once I needed to heat the adhesive to remove the back and screen as I don’t have that equipment to hand, and initial attempts caused damage to the screen and back cover.
Do most people not have the option to protect their battery already?
To be clear, you are still taking about rechargeable batteries right? I agree those should be replaceable. I sure as hell don’t think phone should use single use batteries!
If it shouldn’t be charged above 80%, then make 80% the new 100%. “But this one goes to 11”
They already did. The percentage range on your phone’s battery display is basically a usable range rather than an absolute range. The article talks about phone manufacturers making changes to their charging systems to optimize battery function, but the headline bit about not charging past a certain point has been taken into account by Android and iOS for ages.
A lot of charging circuits and battery designs already do this transparently.
Yes. Batteries are bags of chemicals. They don’t really have percentages. Where you decide 100% is is somewhat arbitrary and up to the battery management.
What the system shows the user may be even a completely different number and there may be software adjustable values.
It’s inherently a made up number and a manufacturer can decide to be more brutal or more sparing in how they treat the chemicals.
If you don’t ever charge it to over 80% then it’s effectively already degraded 20% since the day you got it. I’ll rather just use it as intented and then replace the battery when it no longer holds charge. That’s just one of the reasons I didn’t buy one with built in battery.
But you can still choose to charge it to 100% when you anticipate you need that extra 20%. So it’s not really “already degraded” it’s just “on demand”.
Which has consequences. Spontaneously staying out if you didn’t decide to charge to 100% the night before and running out of battery.
It’s not “on demand” it’s “in stock ready for dispatch.”
I don’t want to have to order a day ahead to get a non-degraded battery.
If you keep it at 80% it doesn’t take a day to charge to full. As long as you know 1 or 2 hours in advance, it’ll be full.
But yeah, if your use-case is that you spontaneously need to leave your charger and require your full battery capacity, you should keep charging it to full. Maybe even get a powerbank as well.
Now you’re spending limited cognitive resources to try and anticipate phone battery usage.
Thanks to EU this will be changing in the near future. Personally I’m one of the stubborn ones who refused to buy devices with non-removable batteries and by the looks of it I will never have to either. Hopefully this applies to the headphone jack aswell.
The USB C to audio jack is ok. I’d like to have replaceable batteries, but my last few phones there wasn’t one that had that and what else I wanted. I had to compromise. Glad the EU is forcing things to improve.
I nearly did, but I wanted to try GrapheneOS. Until now I’ve been LinageOS without Google (over a decade), but I’ve had to compromise and wanted to reduce how much that compromised me.
I watched videos on it for my previous phone. You had to use a heat gun to warm the glue but not heat it too much or you damage the screen. It was a bit of a knife edge temperature wise. Plus you then had to take most of the phone apart to get at the battery. It just wasn’t practical. Replacing the screen looked better, but was as easy as it was on an old phone I did. This stuff just isn’t designed with repair in mind.
