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T-Mobile vs ST ATT battery issues

Originally on my N4 I was rocking straight talk ATT side, my battery life was awesome... Well then I recently switched to T-Mobile monthly 4G (faster speeds) and now even after a couple factory wipes my battery doesn't seem very good. I check what's consuming and Android OS and android system is always in the top 2. I can't seem to get those two programs to calm down. Its not a rogue app, I don't have any apps besides xda installed. I am not rooted just running stock. Has anyone else seen a battery life drop since using T-Mobile, is it that significant? Any advice or tip would be appreciative.

This is really interesting to me. I've read a great deal about the Nexus 4 battery issues but as far as I know they've never been linked to carrier. Of course, I haven't read everything about it and someone might have made a connection along the way, but I haven't come across it.
Do you use the Better Battery Stats app? If so, check the number of msm_hsic_host wakelocks. On a good day, mine hovers around 10-12% of the overall wakelocks (today it's 22%, who knows why). To my knowledge, this is related to the Android OS in the stock battery analysis. I'm on AT&T. This would make me hesitant to jump to T-Mobile when my contract ends in March. Hopefully 4.2.2 fixes the problems regardless, but has anyone else seen worse battery life on T-Mobile than AT&T?

[Q] Terrible Battery in Germany

Hello all. This is my first actual help post cause I now have a problem, but I have been lurking for a while.
Anyway, I have a rooted S5 from verizon that had awesome battery life compared to my old nexus - I could hit 2 days with one charge. Anyway, I am now living in Germany, will be here for the next year, and I can get maybe half a day before I hit 30%. It feels like I am back with the nexus, I have to plan my charging around what I will be doing.
My carrier here is Lebara. Under the battery stats Android system and Androud OS dominate usage. I had that under control in the States with some TB tweaking, but it is back with a vengance. I haven't updated the OS and am not planning to until L comes out and is compatible with root.
I am never far from an outlet, but I don't want to return to my old habits of always plugging in.
I just had a thought - is it possible that the different electricity standards here nuked my battery? If this is the case, should I worry about my tablet too?

I am also starting to notice a lot more lag and even freezing from normal usage.

S5 frezzing and low batery life.
same here . in the states running stock os flashed to PP

Nougat appreciation and battery replacement experience

I just wanted to share how happy i've been with the Nougat update and share my experience with battery replacement. This phone is 2 years old and man i still think this phone can hang in 2017. It's snappy enough for me. I was getting jealous of my sisters s7e with N running. Now that I have it on my s6 i feel like the phone is brand new. Im a happy camper. Also I wanted to share my experience with changing my battery. I bought a replacement battery of ebay and swapped it when i found out my old one was busting out the back cover (defective) and was dying minutes after fully charging. Just replacing the battery i got more use. SoT is 15 minutes shy of 5 hours compared to my before time of 3 hours. stanby with music and light usage is about 24 hour with 20 percent still left. All i do to try to keep the battery in good condition is never letting it run below 20 percent and using greenify. I don't know if Nougat helped battery life but my phone has felt brand new to me from just replacing battery and updating to N. Let me know your experience with battery and how you are liking Nougat. I just flashed to Nougat on Tmo so i might be late to party ive heard some have been running it for months now.
http://www.imgur.com/a/7VJaK

I ran stock unrooted nought since the ota came out here. I had no issues until I made that mistake of installing substratum for touchwiz roms. It worked fine for a little while until the themed apps got updated breaking them one by one. Since I was forced to wipe it anyway I rooted and installed golden eagle Rom which I'm really happy with so far. A lot of benefits over stock.
So far my battery hasn't had any issues and hopefully it won't for a while. I don't run it low or use quick charge if I can help it. The phone is almost 2 years old.

S6 is very bad Google pxl is the boss

If I could buy a Google pixel for anywhere near as cheap as the s6 I would. Your comment isn't very helpful. I personally find the s6 to be a really decent phone for it's age. Especially since I never liked any Samsung phones before this because I always found them to be cheaply made, laggy and buggy.

350Rocket said:
If I could buy a Google pixel for anywhere near as cheap as the s6 I would. Your comment isn't very helpful. I personally find the s6 to be a really decent phone for it's age. Especially since I never liked any Samsung phones before this because I always found them to be cheaply made, laggy and buggy.
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Don't feed the trolls. Let the mods handle them. BTT, nougat has been very good in terms of battery in my experience as well.

350Rocket said:
So far my battery hasn't had any issues and hopefully it won't for a while. I don't run it low or use quick charge if I can help it. The phone is almost 2 years old.
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so do you just uncheck the fast charging option in the settings when you want to charge it and aren't in a hurry? is there study into fast charging causing battery to die out faster? sounds interesting

I haven't heard of any study but typically batteries in general like slow charging better. I leave it unchecked unless I want to charge it faster which happens maybe once a month for me. I charge it in the evening and usually have no problem getting through the day. I usually have a portable power pack with me just in case.

Galaxy Note 4 - battery life

I have had my phone for several years and developed a good sense of the battery's life (meaning what the remaining battery percentage would be after a period of time). For instance, if the phone were fully charged when I went to bed, it would typically read 94% when I awoke.
Starting a few months ago, the battery began running down quite a bit faster than it had previously. The first thing I did was install Greenify, but that made essentially no difference (my phone is rooted, stock ROM, and I had already removed all bloatware, turned off autostarts, etc.)
Next, given the age of my phone, I suspected that the battery itself was wearing out, so I purchased a new one (a RAVPower 3220mAh Replacement Battery for Samsung Note 4 from Amazon - a battery with good reviews). However, the battery performance did not change.
Based on various recent reports about Bitcoin mining malware running on phones, today, I ran adb->shell ps -x and examined the output. The process system_server was reported as being responsible for 79% of the combined user and system times. The five processes /system/bin/surfaceflinger, /system/bin/mediaserver, com.android.systemui, /system/bin/mpdecision, and com.google.android.gms.persistent were reported as being responsible for an additional 11% of the combined user and system times; with 215 other processes being responsible for the final 10% of the combined user and system time. This makes me believe that there is no malware running that is hammering the battery.
What else could be responsible for the recent degradation of battery life? Could some device in the phone be degrading and drawing more current than it had previously? Note that I have not installed any system updates nor installed new apps recently.

Strange.... Quite awhile similar happened to me. But my thoughts was on the rooting side. Few years ago I had Note 1 and try a bunch of custom ROMs Battery life wasn't so good but I thought it was because of mostly bad battery optimization in many of custom ROMs. When I bought Note 4 I tell myself that rooting and custom ROMs are the past. But recently (God knows why) I rooted my Note 4. Since I had no time to install and play with custom ROM I left it just rooted for a few days with a stock ROM. Immediately after rooting, battery life was rapidly start to drop. I'm turning on my phone at 7 AM and about at 3 PM battery was dead. Since then battery lasts almost a whole day - at least until 7 PM. After rooting I didn't install any new app. I even didn't stop or uninstall any of apps or processes. Just did a root and nothing else. Immediately I install new stock ROM and unrooted my device. Battery life is now somewhere in the middle - dying at about 5 PM Yes, I know what is rooting and it shouldn't have anything with battery life. But at the other hand my case said that it does. Also I'm thinking - why most of manufacturers try so hard to stop users from rooting? Yes, that power shouldn't be added to any mobile phone user, but putting such effort to stop even power users of using advantages of rooted devices? Please! So much time and money spent just to "protect" users of doing some mess? There is no logic at all. So that is why I thought that Samsung (other manufacturers too) doing something "under the hood" with their devices... Yes many of "power users" will tel that I am wrong, but isn't it Samsung recently admit that they are listened (I'll be nice and won't say "spy") users of their smart TVs who had voice controls?
These days I've been looking for a new battery, but while I'm looking at your case, it seems that new battery wouldn't help me... or maybe it will? I'll give it a try.

Fix Random Reboots in Galaxy S6

I bought my Galaxy S6 in June 2015 and the phone now is 2.5 years old and battery has lost over 30% of its capacity and after the last update the phone started randomly rebooting 3-4 times per day. So I took inspiration from what Apple did with their older iPhones and customized my power saving option to just decrease the CPU performance by 30% to avoid the peak currents that causes the battery to shut down and I haven't had a single reboot ever since then. It does actually works.
The difference however is that I have intentionally done that based my choice. And I know why my device has slowed down now and I know that all I need to do to get the day 1 performance is get a fresh battery ;P.

Ahmedalwakeel said:
I bought my Galaxy S6 in June 2015 and the phone now is 2.5 years old and battery has lost over 30% of its capacity and after the last update the phone started randomly rebooting 3-4 times per day. So I took inspiration from what Apple did with their older iPhones and customized my power saving option to just decrease the CPU performance by 30% to avoid the peak currents that causes the battery to shut down and I haven't had a single reboot ever since then. It does actually works.
The difference however is that I have intentionally done that based my choice. And I know why my device has slowed down now and I know that all I need to do to get the day 1 performance is get a fresh battery ;P.
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well... in my case, (my phone is also around 2.5 years old) after replacing my battery with another s6's battery i had, the rebooting and freezing stopped for... probably 4 days... or so...
It happened again and i asked a friend of mine to look at it (he's an electronics hobbyist with some nice tools and phone breaking experience)... He said it appeared that there was some irregularities with the motherboard in my FIXED s6 compared to my other S6 with the broken lcd... i didn't understand the other stuff he said but we swapped motherboards... that was around Halloween 2017 and the phone has since behaved like it should.
P.S: im using the original battery now. not the swapped battery...
(P.P.S: how is this problem so common and no one knows how to fix it? my guess is it was built this way to upgrade to s7? meaning s7 people will start experiencing the same thing around 2.5 years or sooner..)