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4

Those percentages are from apps that use Android functions instead of their own modules (to save time/space/compatibility). The battery report bundles all battery usage from those Android functions and puts it into those two entries (depending on function). You can install an app like Wakelock Detector to see what exactly is using your battery the most in ...


4

The two most likely causes: The battery could be dead. Lithium-ion batteries (as well as other types of rechargeable batteries) wear down over time. Even sitting on a shelf they eventually decay, but they decay faster the more you use them, and the more they're exposed to extreme heat, cold, and humidity. The socket on the phone has a loose connection. ...


4

I own an Android smartphone with a lithium-ion battery. I want its installed rechargeable battery to remain useful for a decade, if possible. Completely improbable. Even in optimal storage conditions, a rechargeable Li-ion battery will not last 5 years let alone 10. And optimal storage conditions means 40% charge at 0°C, not room temperature. Secondary ...


3

There are several apps in the Play Store that can list which applications use specific permissions. One that I use is Permission Friendly Apps by androidsoft.org https://play.google.com/store/apps/details?id=org.androidsoft.app.permission It requires no permissions itself so it's safe to use. Once you install it, you can look through the built in views ...


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 ...


2

Wife had a somewhat similar issue. I went into recovery mode and formatted the cache and it solved her problem. To get into recovery mode it is usually Hold volume up + power, let go of power once the phone vibrates but keep holding volume up.


2

You can try Greenify it freezes the app when you are not explicitly using it. There is an experimental feature to make it work without root but I didn't try it since my phone is rooted. There is also Disable Service that can disable single services. It requires root access.


2

The reason your android device draws less power from your USB connection than from a wall adapter is because of the USB specification. This can be side-stepped by shorting the data wires in in the USB cable, which will switch the phone or tablet into wall mode where it can draw the full available current. The amount of current available will vary ...


2

The Settings > Battery menu is a cumulative history that gets reset only when you re-charge the battery to 100%. That means all of the usage history is retained through the charge cycle (which includes any partial re-charges). The closed apps' prior battery usage (as a percentage of the total charge used since a full re-charge) should gradually decline as ...


2

I suggest you look at the app Tasker. With Tasker you are able to literally automate your whole phone. There are also many tutorials covering the of Tasker and what you can do with it (change settings and launch apps based on events, location, time and other variables) As with many similar applications, this one needs root for many functions.


2

Android is automatically keeping Wi-Fi on while the phone is sleeping (Keep Wi-Fi on during sleep) and always scans for available networks (Scanning always available). They must be keeping it on. Try disabling them from Settings > Wi-Fi > Advanced.


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

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 ...


1

Yes, you can turn off all notifications. Your phone will work fine, but you will not receive any notifications, which will severely limit functionality of applications that depend on notifications to alert you of events and progress. Furthermore, the amount of battery life saved by doing this will be so close to zero, that I honestly can't recommend it. ...


1

I was trying many Apps, I quite liked 3C Toolbox, or an alternative smaller, but the same: Battery Monitor Widget But most phones which I tried didn't have an access to the real Current readings from battery's chip, and value of Current was just calculated based on changes of voltage in time. So I bought few testers like THIS Use this to search for it ...


1

I had this too on my S3 4G variant. The battery is the problem as it does not give out power consistently and suddenly just drops all power output. You have to replace the battery. The screen flickering is an indicator for a broken/completely used battery.


1

I dont know if you overclock you CPU or something like that.. Or if you have custom rom or stock.. If you have root, you can use battery calibration app which remove batterystats.bin file and your OS generates new one. It will help. Your phone thinks that you have still the previous battery. Calibrate it. I had same issue on my Galaxy S3


1

The Settings-->Battery menu doesn't show how much battery is being used at that moment, rather how much has been used (usually since the device was fully charged or turned on). The reason the apps show up is because before they were closed they used some battery.


1

If you're looking for the actual current draw of electricity coming in to your device, the app Ampere will display this. Note that it may require some tweaking for certain devices.


1

Modern electronics will not overcharge battery, and phone should be able to handle being constantly plugged in. However keeping battery constantly in high state of charge and charge cycling in high voltage will increase battery degradation. It's best for battery when phone is minimal time in full charge. My personal experience is that my android phone SGS1 ...


1

Sounds like they just replaced the device and gave you a new/refurbished one. Your original device will be fixed (if possible), and then it will be wiped and turned into a refurbished unit. If you didn't back up any of your data, it is gone. Hopefully you did; I'm pretty sure anytime you send in a device for service, they warn you that it could be ...


1

It's the custom ROM but it may not be the ROM itself. Most of the times it is the kernel that comes with the ROM that is most influential. But, it is possible that the ROM has a feature or two that is draining the battery. Also, since it is an S4 I have to ask, is it a Samsung ROM or AOSP? Because AOSP is so much different that usually because it is not the ...


1

The battery charging animation is usually a series of images, displayed in the status bar. Assuming that you are talking about them (the images in the status bar), they are animated when an event is broadcast. Giving some more detail, whenever a charger is connected, an intent is broadcast, which is received by the SystemUI to animate the status bar's ...


1

Smartphones have a particular text file in which is contained the drain value... If you delete this file the device recreates it when it boots and the battery percentage may display a 50% to 70% difference. Chances are you use to charge your phone everytime you want without completing a full cycle of recharge once a month (at least). This way the phone ...


1

Use Greenify for hibernating your tunein radio,this works fine for most apps. If it not works properly, need to freeze the app using ROM toolbox and then defrost when needed. I am using this method mainly for Facebook,truecaller,google play services which consumes more battery usage.


1

Ending the application by "closing it" may kill the process, but it may have several services running. I'm on my phone, so I cannot add the references, but having multiple apps in memory isn't that bad- I don't think it really effects the life of your battery. In this instance, if you think (or know) that a particular application is being a pain, I would ...


1

I have Xperia Z3 running KitKat & can turn off battery percentage: Settings > Personalisation > Status Bar Icons > Battery Percentage. I know your phone is a different model/brand, but it's worth a try.



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