I just updated my OG Pixel 1 to Android 10. I normally use light mode (not dark mode), but my phone just hit the threshold to turn on battery saver mode, and now it has forced my phone into dark mode. I can't toggle this in settings while battery saver is on, and I don't see any settings in battery saver to prevent this force theme change. I find it incomprehensible that this wouldn't be an option, given that there are plenty of phones (like the OG Pixel) that still use LCD screens, and thus whose screen colors don't affect the battery usage. Are there any settings, hidden or otherwise, that prevent dark mode from activating during battery saver on Android 10?

> Tip: To check estimated battery capacity, tap Battery and then Battery health and then Battery capacity. > Battery health assistance [reduces] the battery’s maximum voltage in stages. It starts at 200 charge cycles and continues gradually until 1000 charge cycles. \- [Understand your Pixel battery](https://support.google.com/pixelphone/answer/15738128?hl=en) Battery health assistance is a new feature, introduced with the Android 16 update. On Pixel 9a (the newest Pixel) battery health assistance is turned on by default, and cannot be turned off. On earlier models, it is possible to turn off battery health assistance.[*] This can allow the battery to hold a larger charge (higher mAh), while degrading faster. The rise in mAh would be visible through Android API's and third-party apps. In this case, would the "estimated capacity" rise accordingly? Or, does the system appear to prevent "estimated capacity" from rising, even when the maximum mAh rises? I suppose it _could_ set "estimated capacity" using the maximum mAh obtained without exceeding the voltage limit that _would_ be imposed by battery health assistance. Even if battery health assistance has been turned off. I note the "battery health status" (not available on all models) is defined as whether "remaining battery capacity" is below 80% or not. I have access to a Pixel 8a (99% estimated capacity) and a new Pixel 9. [*] The help page does _not_ comment how this feature is related to the Pixel 6a "appeasement" payments and mandatory Android 16 update . The mandatory programme for Pixel 6a reduces battery capacity after 400 cycles, not 200 (if it has the "impacted" model of battery). Also, the mandatory programme does not mention further progressive reductions.

My Android 7 phone has the power saving feature. The max setting extends battery life by a huge amount and a lions share is saved when biometrics are disabled. Prefer a model-agnostic answer for older pre-v8 android phones, but if not possible, I have a Samsung from about 2016 iirc, with a fingerprint sensor built into the power button. The battery life estimate jumps from 9.5h on MID power save to 29h on MAX, with the contribution from disabling biometrics being +8h (only exceeded by the speed limiter at +9h) If I don't use biometrics how can I disable them permanently ? I can't find any settings entry to allow this directly. I don't want to set max power saving mode all the time to achieve this because that's very intrusive on my daily use (it stops background processing and limits which apps I can use...) So is there another way to switch off biometrics on an old android7 version? I'm thinking via developer options or via an app? I searched the settings for biometrics but it didn't turn up anything I could switch off.

To reduce power consumption and to lower the risk of unauthorized WiFi access, I would like to make the signal strength of my Android mobile hotspot as weak as possible. My mobile devices are located very close to each other, so the mobile hotspot on one of the devices can be detected and used even when the signal strength is very weak. Is it possible to adjust the signal strength of a mobile hotspot on Android?

I have a Nexus 5 running Android 5.0 Lollipop. The Battery Doctor app points to "Contacts Storage," which is a native Android process as the chief consumer of battery life. The Contacts Storage process consumes more than 53% of battery life. Can't disable the process because no other app can reach or display my contacts when "contacts storage" is disabled. Tried factory reset and things looked OK for the first two weeks. Now it's back to consuming battery life like crazy. Any app can replace this native, horrid process?

I'm running Android 10 and there a white face, clock app that came with it (version 10.0.010.000.2006301337), and it doesn't always seem to ring when using the timer for extended periods of time; is there some low-flow, energy saving, reason for this? - Phone Model: ZTE ZMax 10 (Z6250CC)

I usually disconnect my cellphone from the charger some time after it's fully charged because I'm afraid the battery could lose capacity over time if I don't. However, I believe modern electronics should be able to handle this kind of scenario and automatically stop charging the battery once it's full. Does this apply to modern Android phones? Or do I need to continue disconnecting it all the time?

Device : Moto X Play ( Rooted, Stock, Android 6.0.1, msm8916 Board, XT1562) ## Why do I want to limit charging ? ( Let's leave out whether my reasons are valid or not and accept that I **want** to, if you disagree with my reasons) To improve the longevity of battery , I wish to limit charging when it reaches 90%, as explained here https://android.stackexchange.com/q/156526/131553 ## Is it possible? Yes, at least on my previous device Honor 6, as brought out here https://android.stackexchange.com/q/92413/131553 , with two different ways of doing it I have tried unsuccessfully to identify the file responsible in which changing values would limit charging ## I am looking for the system file responsible for stopping charging, with it's true path (without symlinks) (as I saw on on my previous device, locating the path of file was a big challenge after identifying it) ----------

I have two tablets: Allwinner A10 single-core 10 inches (old one) and Allwinner A31 quad-core 9.7 inches (new one). I notice that sometimes when not using the tablet's standby mode, the battery drain is 20 to 30 percent, there's also a little heat near the battery on the back of the tablet, and it sometimes becomes slow so I have to restart anyway. (I install lots of programs, software, browsers, readers, games, movie/music players. Recently the tablets are filled with Android applications.) A couple of questions: 1. Should I keep my Android tablets power off or leave them on standby mode? Which option is better? 2. Will turning the tablet off at night when not using it increase the tablet's life? 3. Will it increase the battery life in terms of charge/discharge cycles if the tablet is left off when not used? So it increases battery longevity for years? 4. Will it also increase the life of the memory card and flash memory (as they are dependent on read/write cycles)? Something might be getting written to them by some background programs if the tablet is on standby? 5. Will it also increase the MTBF (mean time between failure) and longevity of the ARM processor and other electronic chip components, etc., of the tablets?

I downloaded an app [Phone INFO](https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo) which shows a number of stats, particularly "Battery Discharge Cycles". I want to know if this number is being retrieved from the battery (i.e. it's just the number of cycles for the current battery) or the phone (i.e. it's the sum of the cycles across all batteries the phone has contained). In other words, if I insert a brand new battery, should I expect the count to drop to zero? Context: I have a Samsung S6, which doesn't allow easily changing the battery. I went to a phone repair shop to have the battery replaced. I left it there for the day and did not observe the process of replacement. Now I suspect that I was scammed and the battery has not been changed. I want to confront the shop and use the cycle count (which is still very high) as evidence, so I'm checking my understanding first.

How can I keep "Battery Saver" enabled, even when my device is charging? I travel a lot on multi-day excursions where I don't have access to power, so I charge my phone with a battery bank. It seems silly that Android automatically disables "Battery Saver" mode when my phone is charging. Just because my phone is charging doesn't mean I'm not interested in saving power. How can I force "Battery Saver" mode to remain enabled, even when charging my Android device? Ideally I'd like to do this without installing any closed-source software.

I have a Nokia G22 with Android 13. I noticed that during screen lock sometimes my phone turns the display on and off periodically in a few seconds. Is there any way to prevent this behavior?

I recently purchased a refurbished Pixel 8 Pro which was supposed to be in "pristine, flawless condition and looks and functions 100% as new". I do have a window of opportunity to return the phone and don't know if this is warranted. Unfortunately when I received the phone it would not start - and I needed to have it on a charger a while before it would actually turn on. After slowly fully charging the phone it appears to work OK, but I don't have an expectation /benchmark to test it against. I did install Acubattery. In slow charging it from about 24-84% it reported a battery capacity of about 5524mAh - however the phone battery is only rated at 5050mAh. (The second charge from 84-100% showed a capacity of only 3312.8 mAh). Battery Guru shows similar result of 100% health. and 5507/5050mAh. **How worried should I be about receiving the phone with a battery that was fully depleted?** - especially if I am planning for keeping it as long as possible. (This phone cost 3 times what should have had to/wanted to spend - but I purchased it because it had a few killer features not available on other phones - particularly the ability to run other ROMs like GrapheneOS and WIFI calling compatible with my carrier and a 7 year support guarantee and the Pixel 8 screen and battery is just too small.)

I've had a Nexus 6P for about 14 months now and recently I discovered the app AccuBattery , for those not familiar one of the features is to estimate the capacity of your battery by taking measurements on every charge (percentage indicated by your device and the charge measured in mAh). With using this app based on 122 charging sessions it estimates a full battery capacity of my device as about 2,300 mAh or about 68% of the originally designed capacity (3,450 mAh). So my question is this: Is this amount of capacity degradation considered "normal" or "acceptable"? The real world implication of this is that now I'm charging my device almost twice every day, which I suspect probably only amplifies the problem of degrading it faster. When I first got the device I could go roughly 2 days without having to recharge and I don't believe I changed my usage patterns since then.

My UleFone Armor 2 has a 4700mAh battery and I would like to limit the charging to 60% to reduce battery aging. The batteries in most of the phones are not user-replaceable and I am worried that a factory/service battery replacement might affect water resistance negatively. How can I limit the charging to 60%? (But not limiting charging speed. I love fast charging.) Lenovo ThinkPads have a built-in feature that does this, called *“battery preservation mode”.*

Answers to this question https://android.stackexchange.com/q/130000/131553 explain how charging while phone is in use does both - charging the battery **and** powering the on going activities. My question is different — **Can I stop charging the battery but use the connected power for ongoing activities?** *Why do I want to do this?* * I want to charge the battery within ideal limits (see https://android.stackexchange.com/q/156526/131553) and * at the same time use the charging power to keep running the phone without any heat stress on battery, thus extending battery life. * Also the battery is not drained, enabling me to use the phone for longer time without charging Edit : I am not looking for dedicated cables or hardware that can possibly do this

I have a used Samsung Galaxy S3 Mini GT-I8190 . When I shut down the phone the battery still drains. The longer I leave the battery in the shut down phone the more charge it looses. Typically the battery looses between 1% and 2% charge per hour when inside the shut down phone. After a few days without turning the fully charged phone on the battery is completely dead so that I cannot turn on the phone again without charging first. I don't know the previous owner and cannot ask them if they had the same problem. ### Things I tried so far: - Tried to spin the battery on a table to see if the battery is bloated. The battery did not spin at all. Its completely flat on both sides. - Removed the fully charged battery from the phone, let it sit outside for a few days, put it back in, turned on the phone to read the battery level: The battery was still full – so the battery shouldn't be the problem. - Bought a new battery from another vendor anyways and did the same tests as before. - Factory reset (multiple times) - Update to the latest available OS (Android 4.1.2) provided by the vendor. - Update to the latest available custom ROM (Lineage OS 14.1 / Android 7.1.2). - After the factory resets and after flashing I did not install or customize anything apart from the following things. Of course, they had no effect since the phone was turned off — I read about these things in some forums and tried them anyway. - Only on the vendor's OS: Stop the pre-installed Mail service (even though I didn't sign into anything). - Turn off everything (Wifi, GPS, ...) - Enable (extreme) power save mode Neither did I insert a SIM card nor an SD card into the phone, so these two can also be ruled out as the culprit. ### Question Why does the battery drain when the phone is shut down? Can I do anything about this?

I am looking to replace the battery in my Samsung Galaxy S8. Amazon shows many available batteries, ranging in capacity from 3000mAh to 4350mAh, all about $20 or less. The one and only authorized Samsung technician in my neighborhood tells me that none of those batteries is optimized to work with the phone, that any of them would result in very poor battery life, and that I need an OEM battery, a capacity of 3000mAh, for $99 (plus labor of course). Are non-OEM batteries not optimized to work on a specific model and thus resulting in poor battery life?

Good day. Installed a new NOHON BN59 5000mAh battery in Xiaomi PocoF3 phone (original battery 4520mAh). According to the Aida64 application, the battery charges up to 100% (4400-4500mAh) and continues to charge the battery to approximately 4900mAh and more... However, as soon as the charging current drops indicating the end of the charge, the remaining capacity readings reset to the standard value of 4250mAh. I can't understand why the phone doesn't want to recognize the full capacity of the new battery. After all, earlier, when the phone was new, the same Aida64 saw the capacity of the original battery not as 4520mAh, but as 4700mAh and even slightly more... Well, such things happen with new batteries, when the capacity is slightly higher than typical. And now, with a new battery, it doesn't even want to recognize anything above 4600mAh. It charges to nearly full capacity and that's what it shows, but as soon as the current drops to 0.5mAh, the battery value displayed is 4535-4550mAh. Editing the Framework in the offer folder doesn't help solve this issue. I'm using the native Miui14 Android 13. Could the operating system eventually understand that there is already a 5000mAh battery in the phone? Do I need to do something? Maybe reflash the phone? I've changed MIUI kernels, but it doesn't help.

idk if this site is right place place to ask the question, but i do not know how this **"samsung battery usage indicator"** works. You can see from last charge(95%) it used 78% till now, and currently its (95-78) =17%. But if you add up the battry usage of individual apps given on bottom right i.e 25.6%+ 0.7% + 0.7% + 0.7% + 0.6% = **28.3%**. Why it doesn't add up to 78%? Its far less than that, even considering minimal background usage of system apps it would never reach 78%. Where is most of my battery usage lost? The Device is Samsung M55 8gb variant. Specifications- https://www.google.com/amp/s/m.gsmarena.com/samsung_galaxy_m55-ampp-12896.php