Database Users

Battery thread

How is the battery holding up for most folks?
I've been using Atrix for a few hours tonight (perhaps a bit more than normal use was on my Nexus) and I've already used 50%. Thats pretty crappy for whats proclaimed to be a large, long-lasting battery.
What should I be doing to improve battery life on this device?
Thanks.

I've seen the same poor battery performance. I'm hoping after being on the charger all night I'll see the battery performance that I've read about.

nexusonemeover said:
How is the battery holding up for most folks?
I've been using Atrix for a few hours tonight (perhaps a bit more than normal use was on my Nexus) and I've already used 50%. Thats pretty crappy for whats proclaimed to be a large, long-lasting battery.
What should I be doing to improve battery life on this device?
Thanks.
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Click to collapse
It's called "New Battery Syndrome give it a week, you will settle into your normal usage pattern and you will really see fantastic battery life.
Pretty much, you have a new toy, you want to play with it as much as possible, thus you run it more than you may have used your previous devices thus effectively running the battery down faster.

Mine seems to be pretty great. Have had the display on for about two hours straight and it only drained 20%

naturefreak probably nailed it. most batteries seem to last longer after they've been discharged and recharged a few times.... on top of playing with it for probably just about the entire day..... BOUND to see less-than-expected battery life.

Insane Battery Drainage

Hey, I got my nexus 4 a couple days ago and have been messing around with it. I recently went back to stock and flashed franco kernel. I just played about ten minutes of Modern Combat 4 and my battery fell more than 10%!!! I think it was fine when I first got it so I hope I didnt damage my battery somehow. I did run like 3 mins of stresstest but I did not let my battery temp get higher than 40 degrees Celsius. My CPU temp did hit 70 though and throttled. Im really baffled as what to do... When playing MC4 my phone did not feel overly hot and when I checked my battery temps were around 35 degrees.

Addsome said:
Hey, I got my nexus 4 a couple days ago and have been messing around with it. I recently went back to stock and flashed franco kernel. I just played about ten minutes of Modern Combat 4 and my battery fell more than 10%!!! I think it was fine when I first got it so I hope I didnt damage my battery somehow. I did run like 3 mins of stresstest but I did not let my battery temp get higher than 40 degrees Celsius. My CPU temp did hit 70 though and throttled. Im really baffled as what to do... When playing MC4 my phone did not feel overly hot and when I checked my battery temps were around 35 degrees.
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Gaming on a cellular device does eat up a lot of juice. Especially a game with great graphics like modern combat. I see you have red lines in your battery status. You must have bad signal or no signal from where you are. That drains battery power as well as it tends to draw more power to try to connect to the cell tower/antenna. (Just in case you didn't know)
Sent from my Nexus 4 using Tapatalk 2

scream4cheese said:
Gaming on a cellular device does eat up a lot of juice. Especially a game with great graphics like modern combat. I see you have red lines in your battery status. You must have bad signal or no signal from where you are. That drains battery power as well as it tends to draw more power to try to connect to the cell tower/antenna. (Just in case you didn't know)
Sent from my Nexus 4 using Tapatalk 2
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I actually dont have a sim card in yet, since I just got the phone.

I've found the phone goes longer between charges since I've broken it in a bit - a few months' charge / recharge cycles (plus expecting to need to recharge after a heavy gaming sesh) have helped
Sent from my Oric-1 microcomputer using Tapatalk 2

Addsome said:
I actually dont have a sim card in yet, since I just got the phone.
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Even without the SIM card it still scans and connects to the wireless network (or attempts to when there is no signal), any cell phone with or without an active plan legally must be allowed to complete a 911 call.
Just one app's performance is not sufficient to determine the state of the battery. Run the phone for a couple of days (without the game) and get a better idea of the overall performance. I'm not sure what franco's kernel gets for battery life overall, but I'm sure other user's have posted in the thread, compare your use vs life to theirs.
In the future, don't stress test your phone. And don't double post threads please.

But my main question is, should it fall so steeply during a 10 min gaming session? If it kept falling like that I doubt il even be able to get an hour gaming time...

Addsome said:
But my main question is, should it fall so steeply during a 10 min gaming session? If it kept falling like that I doubt il even be able to get an hour gaming time...
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That's normal for MC4. I can completely drain my phone in about two hours playing that game.

USSENTERNCC1701E said:
Even without the SIM card it still scans and connects to the wireless network (or attempts to when there is no signal), any cell phone with or without an active plan legally must be allowed to complete a 911 call.
Just one app's performance is not sufficient to determine the state of the battery. Run the phone for a couple of days (without the game) and get a better idea of the overall performance. I'm not sure what franco's kernel gets for battery life overall, but I'm sure other user's have posted in the thread, compare your use vs life to theirs.
In the future, don't stress test your phone. And don't double post threads please.
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Alright thanks. The first day I got it I was able to get 4 hours screen time since I was just installing stuff and readying it up. I just got worried that from my stresstesting for 3 mins I might of damaged the battery somehow. I wont be stresstesting again lol.

Addsome said:
The first day I got it I was able to get 4 hours screen time
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That's pretty damn good. Game's tend to use up quite a bit of battery, even games that aren't that intense, I get about 4% drop in ten minutes of playing Plague Inc. I don't imagine that game is nearly as CPU/GPU heavy as MC4. Of course I tend to have screen brightness higher, so that burns juice too.

[Q][I9505] Heat and Battery issues - Return or Keep?

Dear Friends and Community,
I recently acquired the S4 with moderate excitement. I already had a S3 and I was very happy with it but I had the option to get an S4 after extending one of our contracts so I went for it and gave my S3 to my wife - she's very happy with it now But i am not very happy with my S4 for 2 reasons:
- Extensive heat generation (36-47C) while surfing, watching videos, natigating calling etc.
- The heat seems to originate from the top portion of the phone on the back as well as the front side around the camera. it is uncomfortable to hold it against my hear on call
- My S3 did not heat up this much or this often. I also did not have any battery charge cliffs or jumps with my S3.
- As the device heats up, the battery drains INSANELY fast. Also I've noticed a disruptive and sudden battery discharge. As I charged my device for the frist time to 100% moments later the battery level jumped from for example 95% to 82% in one second. Is this due to battery calibration issues (because the device is new and the battery has not been charged many times yet) or is this something that can be considered a hardware flaw of the battery or device? I could be watching a video at medium brightness and my battery would go down by 1% each 2 minutes.
Sometimes during use and especially when it heats up some percentages are skipped while discharging (95%, 93%, 89% without sequencing down one by one but rather as 'chunks' of battery loss. ) did you exhibit similar behavior on your phone? Are these battery 'jumps' tied to the heat development?
And now the main questions: Should I return the device and exchange it against a new one or should I wait until Rom development or a patch tackles the problem ? I've already installed a recent OTA from Samsung and hoped the problem would vanish but no luck.
I'd be thrilled to hear your Opinions.
Best,
Thomas

Ive also noticed heating up and fast battery discharge, not one full day of normal usage, my s3 lasted at least 2 times longer. i hope it will pass as i finish 3 times battery charge discharge. for now im excited with camera quality and benchmarks scores i love this phone already, its still plastic but i dont care, with every phone i use silicon or other cases, for s4 i bought original samsung case with plastic back rounded by rubber.
In few days if overheating and fast discharge will not pass on its own i will flash firmware again with kies (repeir mode) and reset all settings.

I also experienced the same issue, its getting hot not warm while doing normal tasks... Dear Thomas u have see temp. in between 37 to 47 but my phone heats upto 55c while gaming... now my phone is with samsung service center, but i am not sure they will replace it with new one as their policy allows replacement only within seven days from the date of purchase and i bought it 27th April itself, just next day of launch. Now i am thinking that why the hell i rushed to buy it. i should have waited for user reviews...
And BTW flashing original firmware doesn't help. Because people at service center had done that and given my cell back to me, but that issue was still there so submitted it again to the service center.....

Are you guys getting these temperature readings using e.g. Battery temperature reading of Cool Tool?
My battery temperature as reported by cool tool never got above 40C but it felt quite hot to the touch already And I am not using any case on it...

I have a case arround it. I will play some games later to see where the temp peaks. but I think it will also be around 50 because it already gets pretty warm doing basic stuff like watching videos or using viber to call.
It feels like this is a problem for all S4's out there.
Check out this video at min 3:25 http://www.youtube.com/watch?v=aUx40kXZF5s (Steep drops in battery)
I really don't want to send in my device for no reason because I will most probably get a refurb or even a device with more problems.
I just want to know if other people have experienced similar issue.
You can check with the app called BatteryGraph and see if sometimes a few percent are skipped down the graph.
It would be great if someone did this for me

Same here with the heat. I undervolted -37,5mV and underclocked 300MHz, now everything is fine
Benchmarkscores are a little worse, but tbh, I really don't care. No current app or game is gonna use it anyway. Seems like a waste of battery life to keep the 1,9GHz clock speed.
Did the same with the Galaxy S2 I owned, which became quite hot too. Samsung has a tendency to overclock their chips just to outperform every other phone on the market, but the truth is, there is virtually no benefit in keeping the maxed clock speed in everyday use, other than doing benchmarks all the time ...

Fully Charge Battery

Hello,
I read in the internet that is not recomended charge 100% the phone's battery. It's about the battery life. I want to know if it is really true....
Sorry my bad english :cyclops:

Maybe if you want to keep the phone for 5 years you'll notice a difference in battery life by keeping it charged between 20-80% but rarely does anyone do this.

True? Yes, it is. In the same way that it's true that a (properly done) overclock on a CPU will shorten it's lifespam. Yes the overclock will shorten the CPU's lifespam, from 20 years to maybe 15.
Your battery will degrade regardless but by the time it becomes an issue, you'll probably have moved on to a new phone anyway.

peachpuff said:
Maybe if you want to keep the phone for 5 years you'll notice a difference in battery life by keeping it charged between 20-80% but rarely does anyone do this.
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Click to collapse
But charging the battery in only 80% means that I will have less SOT before charge again

Tony_Starkus said:
But charging the battery in only 80% means that I will have less SOT before charge again
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Click to collapse
The theory behind this apparently is that how battery likes to be in certain battery levels based on the voltage.
Based on what I understand, the phone/battery likes it better if battery is not less than 20 and not more than 80.
This means that if you charge between 20 - 80, you can have a lot more charge cycles as compared to 0 - 100. This could also mean that the battery can last longer in terms of longevity.
But as mentioned, not many people does that unless they are looking to keep their phone for more than 3 years.
These are based on my limited understanding and my own experiences.
You can google battery university if you need more info.

Tony_Starkus said:
But charging the battery in only 80% means that I will have less SOT before charge again
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Click to collapse
albel said:
The theory behind this apparently is that how battery likes to be in certain battery levels based on the voltage.
Based on what I understand, the phone/battery likes it better if battery is not less than 20 and not more than 80.
This means that if you charge between 20 - 80, you can have a lot more charge cycles as compared to 0 - 100. This could also mean that the battery can last longer in terms of longevity.
But as mentioned, not many people does that unless they are looking to keep their phone for more than 3 years.
These are based on my limited understanding and my own experiences.
You can google battery university if you need more info.
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Most of the information here is correct I have an am always doing battery tests research and such
80% and 20% are the magic number for maximum overall life of a battery...
Also no on mentions heat and cold also degrades the cells inside
I also recomend if you make it through the day shutting off fast charge......
If you think about it it is simmilar to any other battery,
Take a car for example I know i know lead battery vs lith ion but slow charging is the best method for any types of battery life in the long run.... it does not excite any of the ions as much as fast charging......
Fast charging on auto batteries is what we call a surface charge it quickly excites the electrons for a quick zap of juice but then over all that spreads out among all of the rest of the electrons quickly draining and shortning over life....
Slow charge generates less heat as well as does what we call a deep charge....Which is better of coarse I have had automotive batteries say like in my eclipse its 9 years old and it was a 800 amp battery and even after 9 years now
It retains over 650 amps on battery tests because i slow charge it once a month for a couple days be it need it or not..
Also if you guys are over worried and snap dragon try part cyborg rom the engineering kernel used by samdung only allow for a 80% charge.....I get more screen on time than stock on less charge because it is optimized so well....any where from 6 to 8.5+ hours and that is more than enough more my needs....
Also wireless chargers generate heat which degrade life on batts cells.....
I can get way more into detail on any of these if any one wishes

TheMadScientist said:
Most of the information here is correct I have an am always doing battery tests research and such
80% and 20% are the magic number for maximum overall life of a battery...
Also no on mentions heat and cold also degrades the cells inside
I also recomend if you make it through the day shutting off fast charge......
If you think about it it is simmilar to any other battery,
Take a car for example I know i know lead battery vs lith ion but slow charging is the best method for any types of battery life in the long run.... it does not excite any of the ions as much as fast charging......
Fast charging on auto batteries is what we call a surface charge it quickly excites the electrons for a quick zap of juice but then over all that spreads out among all of the rest of the electrons quickly draining and shortning over life....
Slow charge generates less heat as well as does what we call a deep charge....Which is better of coarse I have had automotive batteries say like in my eclipse its 9 years old and it was a 800 amp battery and even after 9 years now
It retains over 650 amps on battery tests because i slow charge it once a month for a couple days be it need it or not..
Also if you guys are over worried and snap dragon try part cyborg rom the engineering kernel used by samdung only allow for a 80% charge.....I get more screen on time than stock on less charge because it is optimized so well....any where from 6 to 8.5+ hours and that is more than enough more my needs....
Also wireless chargers generate heat which degrade life on batts cells.....
I can get way more into detail on any of these if any one wishes
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Click to collapse
Have just started reading about s8 stuff and have not rooted yet. Does the kernel allow you to set maximum charge? I remember back on sgs1 specific kernels allowed this but haven't seen it much since then

c-pimp said:
Have just started reading about s8 stuff and have not rooted yet. Does the kernel allow you to set maximum charge? I remember back on sgs1 specific kernels allowed this but haven't seen it much since then
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no samsung preset it at 80% and since the bootloaders locked no way to modify it

Ahh I see. Thanks for clearing that up. Looks like since I'm on oreo now I'm stuck without root so I won't be playing with any of that stuff. Have a good one!

S20+ problems

Hi, I just got my S20+ 5G (exynos processor) 3 days ago, and I'm very disappointed. The phone get warm and drops frames during normal scrolling through the UI so easily and the battery drop percentage is huge (I installed Accubattery to get exact status) and as you can see 21% of battery is gone while the screen is off?!!
The phone settings as below :
WIFI + NFC + GPS : Off
Screen : 120 Hz and brightness is Auto
SIM: 2 first locked on LTE and the second on 3G and the coverage at my place is excellent
What do you think? Am I an isolated case or do you have a similar issues, especially the power consumption during screen of time.

I feel its very new. Give sammy sometime to mature the software for 120 hz. I feel 120 hz is the cause for the drain i think.
Sent from my SM-G975F using Tapatalk

paras said:
I feel its very new. Give sammy sometime to mature the software for 120 hz. I feel 120 hz is the cause for the drain i think.
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My main concern is the consumption when screen is off which is not related to 120 Hz

Have you restored a backup from an older phone?

Isn't wifi more efficient than LTE and 5G? Maybe keep that on and see if you notice a difference. Switch to 60 hz as well.

iamnotkurtcobain said:
Have you restored a backup from an older phone?
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No

pvc_ said:
Isn't wifi more efficient than LTE and 5G? Maybe keep that on and see if you notice a difference. Switch to 60 hz as well.
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Click to collapse
I don't have WiFi, I have unlimited data sim which i been using it for the last year, haven't faced any issues with power consumption in my older phones

This seems like the normal exynos problems. In some cases (back on my s9/s10/n10+) experiences, these phones have had catastrophic battery lifetimes. Maybe it'll settle after 2-3 days, but I think it'll stay that way.

With adaptive battery, the phone must first learn your usage etc...I saw some videos where the people complain regarding the 120hz using a lot of power...25% more then with 60hz

I just received an update today, I'll see if it improves the heat/battery issues I have

Update

i have s20+ as well and i do agree during heavy usage ''exynos'' the phone gets very warm too warm one time i cant even use it to my face to talk to the person im on a call.

for battery life, give it a few days to gain the full potential of the battery. then try again.

Hey s20 plus users, anyone of you have issues with the auto focussing with the 64mp camera? Cuz I do, my plus just wont focus on the subject automatically, I have to click on the subject for it to focus. Is that normal? or is it supposed to focus automatically??
Oh and I once had a 30%-35% battery drain over night, insane!
Exynos variant that is. lol

BoonPhunchok said:
Hey s20 plus users, anyone of you have issues with the auto focussing with the 64mp camera? Cuz I do, my plus just wont focus on the subject automatically, I have to click on the subject for it to focus. Is that normal? or is it supposed to focus automatically??
Oh and I once had a 30%-35% battery drain over night, insane!
Exynos variant that is. lol
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Click to collapse
I always click on the subject I want to shoot so I didn't notice this problem..
Sent from my SM-G985F using Tapatalk

I have an S20+. And the firmware reports 4,370 capacity which is the guaranteed minimum capacity. Not the reported capacity comes from the phone firmware NOT the app. The estimated actual capacity comes from the app. The capacity the manufacturers advertise is the "average" capacity. Also I've used Accubattery for a couple months now and it reports 94% health, this doesn't mean my battery actually has the advertised 4,500 mah capacity. The health is based on the phone accurately measuring the exact charging current of the charger which isn't a perfect measurement.
Generally these battery apps are good for measuring the RELATIVE change in the health of your battery over a long period of time, or, checking the battery health when you purchase a refurb/used phone. For new phones, anything 92% on up in my opinion is an indication the battery is good and essentially in like-new condition. On renewed/used phones, that are 1-3 years old, I think anything at about 85% up shows the battery is still pretty good. It's when you start to dip below 75% is it probably a reliable sign you probably could benefit from switching to a newer phone/battery.
Also, it is not uncommon when a phone is brand new or after installing some new apps, your battery usage can temporarily jump for a day or two. The most important stat to look at in Accubattery is the current (not average) Screen Off Dishcharge rate in % per hour. If it's around 1% or lower, then you don't have a lot of apps doing stuff in the background to eat battery. If it's like 2% or more, then go into Settings > Device care > Battery > Battery Usage and look at what apps are using a lot of battery that have more background time than foreground. Those are what's eating your battery and you need to see if there are settings in the app to minimize background usage, or make sure they are not excluded from the Optimize Battery Apps list (some apps have to operate all the time in the background though.)

I received the stable 11 update and my battery wasn't great, after a few days it's actually been pretty good, had 100 charge at 9 in the morning and have been using phone throughout the day in work and its now 5:19 with 72 %, exynos