Hot answers tagged

15

Of course your device requires power to run – whether you've set it for charging or not. Question is: Does it use more power than it gets by charging? Which depends on multiple factors: Your "power source". USB only charges with 500 mA (USB2) resp. 900 mA (USB3), A/C with up to 2 A. Your devices power consumption. Depending on what it's doing. Display ...


13

It's a scam. Android app cannot access physical battery directly. The battery file is just an interface for Android with value provided by the battery's sensor. Again, a sensor only reads data; it cannot write/modify anything. An article on Android Police explained this very well, Battery not working correctly? Well, just defrag it! It's all so obvious ...


9

Tests done to arrive at the answer posted below were correct but the interpretation of results was erroneous on my part. This was validated by two sources including Battery University and based on the correct interpretation and additional inputs a separate answer has been posted. This also helps in readability and understanding Power is consumed by the ...


8

Motorola Droid 4 XT894 has 1785mAh battery with 2% tolerance i.e 1735mAh actual battery capacity. Your seller seems to have fooled you. Also it doesn't seem like the seller put up the battery description as 3300mAh by mistake as he has put this in Title name itself You could have taken out the battery from phone and flipped it to see the battery capacity ...


8

No Calibration of batteries (Li Ion or Li Po, used in almost all mobile devices) is a myth You can start using it straight away and charge as you normally did with earlier batteries This post will help you understand more: Looking for a consistent answer about battery calibration Using calibration apps doesn't really help as the battery files in system ...


6

There is a known issue on Nexus 5/6 with Marshmallow and wifi. This wifi drain has been noted by many users, me included. http://forum.xda-developers.com/google-nexus-5/help/wifi-plaguing-android-marshmallow-t3220031


6

This is indicative of poorly designed/ defective piece and best replaced ASAP. From bwDraco's answer on Why do some AC adapters and power supplies generate a whining noise, and what can I do about it? (emphasis added; missing text denoted by "....") Most modern AC adapters are switched-mode power supplies. The internal switching frequency of an SMPS is ...


5

Yes. Phone does use power from battery when recharging. Although thats something which would more likely depend on how phone is designed, so it may not always be true... but most phones are this way. I am basing my answer on a test I did. I reduced the charging voltage while at the same time making my phone (my old Samsung Galaxy S3 I9300) use high battery ...


5

Battery contains the chip which provides information to fuel gauge hardware and drivers. Since you have already done that, next is to determine if the problem is with fuel gauge drivers/ software or hardware. Wipe clean your phone (cache, dalvik and system) and flash stock ROM for your phone. Don't install apps. Switch to safe mode, charge for about three ...


5

You don't need a calibration app for that. Just fully charge the battery to 100% (in one run), let it run down to below the 20% mark, the recharge it to 100% (again in one run without interception) – battery calibrated. And as that describes a "normal day" with recent devices (take it from the charger at 100% in the morning, put it back almost depleted in ...


5

Good question and to give a definitive reply is not possible since OEMs use different battery charging algorithms both at hardware level and OS level. Details of these are deemed "proprietary" and not available on public domain. By way of providing the background to understand: Battery Charging circuits have a dedicated "Power Management IC (PMIC) to take ...


4

I can say %99,9 of all apps that claim to fix battery, get you longer battery life, better CPU usage, better RAM management, are completely useless wastes of battery, CPU and RAM usage. That app is no different.


3

Setup adb on PC, enable USB debugging in device, connect the device into PC, launch a shell on PC and enter: adb shell dumpsys package | grep -A1 "userId=UID" | tail -n -1| awk '{print $2}' | tr -d '}' Replace UID with the ID you're looking for, such as 10137. You would get the package name of the app associated with that UID. You can do adb shell ...


3

Fast Charging can be achieved in two ways Hardware based Charging (including Chargers and Chip set enhancements such as Qualcomm Quick Charge 2.0 Kernels (including kernel tweaks) capable of increasing charge rate whether it is USB or wall outlet charging There is a fictitious way or a myth using apps: There is NO way for an app to over ride the device ...


3

Never let it run down below 10% if you can help it. Running down to "absolute zero" harms your battery (and might even render it inoperable – which is why most devices shut-down before reaching that point). Modern LiIo batteries don't suffer from "memory effect", so ideally you'd plug-in a charger whenever possible: "trickle-charging" doesn't hurt them, low ...


3

Why don't you want to keep the phone plugged in overnight? Per Is it better to detach a charger when my Android device gets fully charged?, it sounds like sitting at 100% on the charger for ~6 hours is not considered harmful to the lithium-ion battery in your device. That said, you can purchase a light timer for under $20, set it to only turn on for an hour ...


3

A few days back I had the same problem and I was able to fix it! Now all you need to do is go to Settings → Location → options (3 Dots top right corner) → Scanning → Uncheck Wi-Fi Scanning. This is for Marshmallow update.


2

This issue is widely reported and discussed on Google support forums. I experienced exactly the same thing on my Nexus 5 when running any CPU/GPU intensive apps. In my case running SkyForce game immediately caused the phone to shut down with 100% repeatability. Most of the time after the restart the phone would report significantly reduced battery charge ...


2

Yes, leaving a lithium ion battery fully discharged for long periods can destroy the cell's ability to hold a charge. If you are going to be storing batteries for a long time, leave them about half charged.


2

Ampere shows us the value of current made available to the system by the kernel. I used three devices with different Android versions to test my answer. Here we go! Test 1 & 2: Two MTK devices running stock Android 4.2.1 and 4.4.2 Since MTK is involved, thing would behave a bit differently. In both the devices Ampere had trouble measuring the current ...


2

This is not as in-depth as FireLord's answer, but I found a few apps that might be useful. These all appear monitor current and have a log feature: Current Widget: Battery Monitor by RmDroider Battery Utility Free by SUXD Advanced Battery Monitor by Codeka Battery Monitor Widget by 3c Battery Spy by Vertiform Technologies These are more ...


2

I had a similar problem a few years ago with my old HTC EVO 3D which was also running cyanogenmod at this time. I tried flashing different roms and kernels but the problem was persistent. Because my battery was empty as yours is at the moment, I charged it by cutting a USB Cable and applying "+" and "-" to the battery directly. It looked really bad to be ...


2

Try Lock Screen Policy App and disable the Camera Disable multiple 3rd party widgets on the lockscreen. Also removes lockscreen camera access on some devices WARNING: Not intended for use on Android 5.x


2

Both the Facebook and Facebook Messenger apps are notorious for excessive battery use. Seriously, social media is nowhere near important enough to warrant killing your phone battery. One way to help is to make sure that location reporting is turned off for both apps. You should actually go through all of the settings for both apps and disable every single ...


2

The Marshmallow 6.0.1 update seems to have solved this battery drain problem. Source: AndroidPit 2 users have confirmed it in that link. Please check.


2

The first thing I'd look for is one app that's using an extraordinary amount of resources. Go to settings>apps> [choose an app -- I'd start with Chrome or any other browser that you use] Then do a "Force Stop" on the suspected app. See if that helps. If there are any apps that you rarely use you can keep them stopped -- so you know they aren't using any ...


2

There could be three reasons to this (not in any order) : Battery lived it's life. Fuel Guage drivers corrupted. To rule this out, i suggest back up your data and with your recovery wipe clean all Cache and system and flash stock(not sure if you cleaned fully when you flashed a ROM) If the problem continues, it is likely that it is not a driver ...


2

t turns out I have (had) two separate issues: I had a bum battery. No combination of cable/charger would charge it correctly. I had the battery replaced and noticed that it was still not charging correctly and so posted the question. I should have done more research. Samsung devices (mine at least) seem to detect when they're being charged by a ...


2

Proper explanation is fairly technical, so am answering in broad terms (you can skip the links if you don't want to get into nitty gritty) Charging rate is a measure that governs at what current a battery is charged and discharged. At 1C, a battery rated 1,000mAh charges at a current of 1,000mAh. In an ideal world the battery would be fully charged in 60 ...


2

Short Answer Is the power consumed from charger or battery to power the device when charging?"- Power is consumed from the charger. "I want to know if my battery will take a hit [while downloading torrents]"- No Long and Technical Answer In continuation with my earlier answer quoting Battery University BU-409 Charging Lithium-ion Noticed that there ...



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