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20

I doubt that there is a direct correlation between battery consumption and RAM usage. The hardware doesn't know which RAM cells contain 'used' data and which not. So there can be no difference in battery consumption on that level. But I think that one could say that unnecessarily killing Apps causes a few extra CPU cycles when those Apps have to be ...


15

Think of RAM like a paper notebook. You can write data into the book (with a pencil), and you can erase those data and replace them with new data, but the book's always the same weight. The book doesn't get any heavier, whatever you write in it. The same way, with current RAM technology, the battery use of the RAM is fixed, regardless of what (if anything) ...


7

MYTHBUSTED I installed this app yesterday with some uncertainty and it detected (and fixed) a number of problems. I then found this thread which made my suspicions even more so. Today I ran the app and it detected zero problems, not surprising since the battery presumably got no new problems overnight. Out of curiosity I set the date to a month in advance ...


4

Battery app re-calculates the remaining battery based on the battery power currently being used (mV) and history. That's why you can do calibration to correctly measure the current battery status and range of it. In most case, battery power (mV), it goes down from the top and it usually up & down within a small range but for overall, it goes down. But ...


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

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 ...


3

This website has a good page on the information: http://nexus7.wonderhowto.com/how-to/unlock-android-ls-hidden-battery-percentage-icon-status-bar-0155876/ But if you want a quick and dirty way to enable this, you can just use: adb shell content insert --uri content://settings/system --bind name:s:status_bar_show_battery_percent --bind value:i:1 followed ...


3

yes, it is absolutely safe to charge a device with a charger that has more current capacity than needed. Ohm's law tells us the relation between current, voltage, and resistance: I = V / R (current = voltage / resistance) Since the voltage is held constant (5V), the only factor that determines current draw is the load (another term ...


3

That Nokia code is a myth, it doesn't provide you with any more power, it actually does more harm than good if you are low on battery because it activates the better voice codec (which consumes MORE battery). However, on Android you have this feature called Battery saver. Here's my settings screen for this function on a LG phone (accessed by going to ...


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 ...


2

It might be worthwhile to invest in a charge only cable. I use one for my tablet at home and in my car. The quality of the usb cable will also make a difference. Cables do go bad. It sounds like you have ruled out all the other options so this might be worth trying.


2

That's really not normal. The phone should behave completely normally right up to the point it turns itself off. Since it's still under warranty, you should make a warranty claim. Trying to fix it yourself (or taking it to someone else to fix) will void the warranty, and might not fix the problem, which would leave you worse off than you started. From what ...


2

It's understandable that your battery life will decrease when you run 4.4 on an older device like the S2. But that is strange. Try identifying the process like the other users suggested. I would also suggest Greenify, an app that can put processes and apps into automatic hibernation, decreasing their CPU toll.


2

If you are rooted, I would recommend downloading Better Battery Stats (or Wakelock Detector) from the Google Play Store, and finding the name of the 'mad' processes. If you aren't rooted, I recommend you root as other apps can't access battery stats as of Android OS version 4.4.


2

To expand on @RossC's comment, doing this yourself is quite easy if you are confident and comfortable with device disassembly, and have the correct tools. There are tutorials on how to safely and correctly replace this: iFixIt: https://www.ifixit.com/Guide/Motorola+Moto+X+Battery+Replacement/16974 ETradeSupply video: ...


2

I had to remove the battery from my O4X several times already, as it didn't respond to anything else – so I can see your concern: What to do if the battery cannot be removed then? As to my experiences, devices with a non-removable battery have a reset hole, which serves exactly this purpose: poking it with a needle (or tooth-stick, or something similar) ...


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 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

I have an OTG adapotor that looks like this It accepts SD, microSD and USB memory sticks while charging. It's a bit bulkier than what you've got, but it may be worth trying. This one was made for the Galaxy S2, and it works well with the Galaxy S3 and the Galaxy S5 as well (those are the ones I've tried it with, and it probably works with most Samsung ...


2

You should have no problems doing it on your own. However, make sure you use a compatible and genuine battery to avoid issues. Switch off the phone before proceeding. Pop the back cover and replace it. Turn on the phone and check for any charging defects. (just to be sure)


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.


1

As the article explained to you, it doesn't matter how much stuff is loaded into the RAM, so that's completely okay if you don't close the applications that are idle. But if the app constantly does some activity, like syncing some data, or downloading, or even recording sound, it would drain your battery, because it uses the CPU, which sucks the energy from ...


1

Like on a PC, holding down the power button is handled in a much lower level of the firmware, so it's not possible for even an OS problem or a CPU hang to interfere with that operation. I've been using Android devices with removable and non-removable batteries for several years, and never once needed to remove the battery for the reason you describe. ...


1

That's very interesting. Have you looked for the "Unknown" app in your Application Manager? That may shed some light on the subject, if it can or can't be found anywhere in there. Other than that, look at some recently downloaded apps, see if they have any weird numbers in the App Manager. A very puzzling problem indeed.


1

Interesting! Never seen a phone that didn't list 'Screen' as biggest drain. I'd try uninstalling apps until it's fixed, my theory being that some cheesy app (spyware?) keeps calling home. Start with the running apps list--anything running that shouldn't be? Got GPS turned off? How much free storage do you have on the phone? If the phone's memory is nearly ...


1

You did not give details on "broken" in which way, but if it's about not charging, or having a flaky connection when charging: There seems to be a common problem with the micro-USB port speciffically in phones. It is very simple, but not so simple to detect. The problem is dust on the "back wall" of the connector on the phone. If you look into it, wou ...


1

It might marginally increase your battery life, since if the network selection is set to Auto, it will periodically poll the networks to see if LTE is available. Since it won't find it anyway, why not disable it and restrict it to your available networks?


1

It could be that it's not a particular file that's corrupt, but the filesystem itself. I've had a similar problem on a Galaxy S3, and the culprit was a filesystem error on the SD card. Removing the SD card and scanning the filesystem for errors from a computer fixed the problem.



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