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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 ...
My GF also has the S5 and at the same time last night she was at 11 hours (1.5 hours screen) and had I think 67% battery left.
Granted my phone was unplugged a little longer and had more screen time, but this seems crazy! Also her brightness was almost double mine. Unfortuanltly I didn't get any screenshots of her phone last night. Here are mine:
http://imgur.com/flcQqTD
http://imgur.com/7WLJ2dD
http://imgur.com/AIuGZc8
http://imgur.com/kzunBND
http://imgur.com/ilKCVK4
http://imgur.com/8coioOI
Note how the wifi has been on for 14 hours? It has NEVER been on, I haven't even connected to my house yet, I turned it off as soon as I left Verizon.
You can form whatever opinion you like. But the general concenus and my personal experience is that the S5 battery life is excellent if not outstanding.
You would do well to ensure that your battery is fully charged and use a good third party battery monitor e.g, Gsam or a similar app. It only takes a few poorly behaved apps to put a large dent in any battery so you should look for wayward apps and try to avail yourself of battery saving features e.g. reduced screen brightness, timeouts, processor governors and so forth. And perhaps consider looking into inverted apps.
.
I had the note 3 the battery was terrible and i really thought we'd be getting atleast 4000mah as some websites stated but 3220mah aren't you guys concern? Seems like a joke to me.
Sent from my D6503 using XDA Free mobile app
I was under the impression that the Note 3 had pretty good battery life... at least that was what I was able to discern from reviews.
Can someone else who also owned the Note 3 chime in?
Watch this and you won't be concerned about battery any more:
https://www.google.de/url?sa=t&sour...Ot9BGMeI02GwNY_Zw&sig2=jB_BFvUf5EMKyJdT_ZwXOw
This video shows that the Galaxy S5 with Snapdragon 805 and QHD Display doesn't use more battery than the "old" Galaxy S5. So Samsung seems to have found good ways for battery saving.
I am not concern. I plan to get 2 extra battery and a external charger. The Note 3 version was like $30. Whick brand is good? Anker?
pcman2000 said:
I was under the impression that the Note 3 had pretty good battery life... at least that was what I was able to discern from reviews.
Can someone else who also owned the Note 3 chime in?
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Click to collapse
You would be correct. The Note 3 Battery life was pretty damn good. I never had issues with it, and if you look over the N3 forum you'll see some pretty outstanding results :good:
I expect the N4 to have been tweaked a little and the battery to be either on par or at least very very similar to the N3.
sofia-captivate said:
I had the note 3 the battery was terrible and i really thought we'd be getting atleast 4000mah as some websites stated but 3220mah aren't you guys concern? Seems like a joke to me.
Sent from my D6503 using XDA Free mobile app
Click to expand...
Click to collapse
The Note 3 was widely regarded as having some of the best battery life for any phone of that time.
If anything wall hugging iphone users have something to be worried about with their copycat device, "Retina HD" welcome to 2012 Apple and the battery size, hardly a mention because we KNOW its smaller than Samsungs.
My note 3 has pretty decent battery life. Just make sure to disable a bunch of stuff that you don't need for best results.
i
sofia-captivate said:
I had the note 3 the battery was terrible and i really thought we'd be getting atleast 4000mah as some websites stated but 3220mah aren't you guys concern? Seems like a joke to me.
Sent from my D6503 using XDA Free mobile app
Click to expand...
Click to collapse
since 4.4.2 update WiFi battery usage increased. so i got battery drain...
But i change setting to turn off WiFi when screen off and Battery Life became normal
On Note 4 they claimed for more optimization for power + UltraPower Saving mode...
so we have to wait for reviews and our experiences...
:good:
Even though I was disappointed they didn't include a bigger battery, I'm not concerned about battery usage on Note 4. I don't think they would've made a big deal about battery usage the and better performance on the Note 4, if they didn't have something to back that up. It would've been much simpler to not mention the 7% improvement, or just say they increased the battery by 20mAh. I'm expecting a somewhat better performance compared to the Note 3, which is fine.
Dat Noob said:
Even though I was disappointed they didn't include a bigger battery, I'm not concerned about battery usage on Note 4. I don't think they would've made a big deal about battery usage the and better performance on the Note 4, if they didn't have something to back that up. It would've been much simpler to not mention the 7% improvement, or just say they increased the battery by 20mAh. I'm expecting a somewhat better performance compared to the Note 3, which is fine.
Click to expand...
Click to collapse
The battery is still bigger than the iphone 6+'s and you can always swap it out and with quick charge feature 0-50% in 30 minutes, how long does an iphone take?
It's not how big the battery is, but how it's used. I have Note 3 and I saw as much as 40% drain overnight, when phone was not used at all, right after updating to KitKat and I also managed to have as little as 1% drain overnight, after killing some of bloatware. I can't pinpoint anything in particular, but it could be more than one program. Right now for example Google search is draining my battery more than all other programs combined and I'm not doing anything with the phone at all. I don't want to kill it, since I use it sometimes, but if it keeps doing it I may have no choice. Anyhow if Note 3 is working properly it can have fantastic battery life.
According to what I read so far Note 4 screen should be something like 14% more efficient than older version, despite having higher resolution, CPU and rest of hardware should be at last as good as older models and there should be ultra power saving mode, so I wouldn't worry about power that much, unless some program or programs crash and go bananas, but at least software issues can be fixed, just a matter of effort. For example many claim factory reset fixes excessive battery drain right after firmware update, which I had personally.
If you are concerned, you could always buy a ZeroLemon battery.
Here's the report on Note 4 screen. Remember display consumes the most energy of anything.
http://www.displaymate.com/Galaxy_Note4_ShootOut_1.htm
Comparison with the Galaxy Note 3:
The Galaxy Note 4 is 14 percent more power efficient than the Galaxy Note 3. This is due primarily to a 19 percent improvement
in the power efficiency of the Green Primary channel (materials and electronics). The results are scaled for the same Luminance.
Comparison with LCDs:
While LCDs remain more power efficient for images with mostly white content (like text screens, for example), OLEDs are now
more power efficient for mixed image content because they are emissive displays so their power varies with the Average Picture
Level (average Brightness) of the image content. For LCDs the display power is independent of image content. OLEDs have
been rapidly improving in their power efficiency. In fact, the Galaxy Note 4 is 40 percent more power efficient than the
Full HD LCD Smartphones we tested for mixed image content (that includes photos, videos, and movies, for example)
with a typical 50 percent Average Picture Level, APL.
Click to expand...
Click to collapse
SOC should use the same power as other Snapdragon 805 powered devices (hint: Qualcomm generally makes pretty power efficient smartphones).
Hello everyone,
I want to know the PROS and CONS of the Samsung Galaxy S8's battery. I am currently a Samsung Galaxy S7 user and I am thinking to make an upgrade. I always wanted a phone to have a heavy battery life as I am a heavy user.
Also let me know if the phone charges faster compared to the S7.
Thanks in advance, it is my first time posting here
shajjadur said:
Hello everyone,
I want to know the PROS and CONS of the Samsung Galaxy S8's battery. I am currently a Samsung Galaxy S7 user and I am thinking to make an upgrade. I always wanted a phone to have a heavy battery life as I am a heavy user.
Also let me know if the phone charges faster compared to the S7.
Thanks in advance, it is my first time posting here
Click to expand...
Click to collapse
Hey Shajjadur,
Welcome to the XDA!
The Galaxy S8 charges quickly, not necessarily any faster than the Galaxy S7, but 15 minutes will give you circa 20% battery life, almost 50% in around 30 minutes and a full charge takes about 80 minutes. Wireless charging isn’t as quick, but it still charges far faster than an iPhone.
Here are pros and cons -
Pros: Better than it should be, fast wired and wireless charging, promises of long term safety and performance
Cons: Disappointing battery capacity, reduced resolution required for all day stamina, generationally a backwards step
S7 battery capacity after one year is 80% of new. S8 battery capacity after one year is 95% of new according to Samsung.
I got a killer mobile battery charger can do at least 5 full charges so never concerned anymore about battery life lol.
Example used my phone all day yesterday. Took pics used net etc and did small chargers now and then kept me alive all day and night.
Also it's fast charge too.
It's amazing how much we actually use our phones in a given day, especially when we watch "videos"! Rate this thread to express how many hours of screen-on time you can get on the Samsung Galaxy M51 before depleting the battery.
Then, drop a comment if you have anything to add!
Getting 17hrs of screen on time minimum on full charge for youtube 3hrs , clash of clans 2hrs and 45-50 mins of calls per day....last 3 days with my usage
Plus Whatsapp of 1 hrs approx per day
gandeepan said:
Getting 17hrs of screen on time minimum on full charge for youtube 3hrs , clash of clans 2hrs and 45-50 mins of calls per day....last 3 days with my usage
Plus Whatsapp of 1 hrs approx per day
Click to expand...
Click to collapse
SS or it didn't happen
I've had this phone 2 days and so far I've had 6 hours 31 minutes of screen time and I have 58 percent battery left. This is mostly YouTube, Web browsing, an hour of downloading apps from play store and a bit of emulation (ppsspp) am extremely impressed with the battery life on this phone.
Battery lasts more than 2 days at Medium Power Saving mode with moderate apps usage(no gaming but with youtube, magic fluid live wallpaper, whatsapp, browsing) and SOT approx 13+ hours in these two days. At the end of second day battery remains at 30-35%.
Has anybody here compared to the Moto G8 Power? Is the battery life even better?
GoogleoverK said:
Has anybody here compared to the Moto G8 Power? Is the battery life even better?
Click to expand...
Click to collapse
Exactly how do you think a cheap SD 665 11nm chip with a 5,000mAh battery will do against a higher tier SD 730g 8nm chip with a 7,000mAh battery?
Hmmmmm ?
Devilmonkey27 said:
Exactly how do you think a cheap SD 665 11nm chip with a 5,000mAh battery will do against a higher tier SD 730g 8nm chip with a 7,000mAh battery?
Hmmmmm ?
Click to expand...
Click to collapse
Could have answered like a normal person.
GoogleoverK said:
Could have answered like a normal person.
Click to expand...
Click to collapse
I did... Exactly how do you think they will compare?
@Devilmonkey27 No need for snark...
It was a genuine question, try to provide a genuine answer. Please reply properly or don't reply at all.
Didgeridoohan said:
@Devilmonkey27 No need for snark...
It was a genuine question, try to provide a genuine answer. Please reply properly or don't reply at all.
Click to expand...
Click to collapse
So exactly how do you think a phone with half the specs will do?
Devilmonkey27 said:
So exactly how do you think a phone with half the specs will do?
Click to expand...
Click to collapse
You're missing the point. My post has nothing to do with that...
I'm simply asking, that if you have anything to add to a thread, please do so in a constructive manner without snark or attitude. It would have been very easy for you to convey your message without being rude or condescending.
If you've got more to discuss on this particular matter, please contact me through a private message (to keep the thread on topic).
Devilmonkey27 said:
Exactly how do you think a cheap SD 665 11nm chip with a 5,000mAh battery will do against a higher tier SD 730g 8nm chip with a 7,000mAh battery?
Hmmmmm ?
Click to expand...
Click to collapse
To come back on it, I have it since today and so far it's looking like the G8 Power has better or equal batterylife, standby drain is somehow bad on the M51, I checked all apps. Still I'll let the software settle and get through more cycles and check Gsam Battery Monitor in a couple of days again.
I honestly blame Samsung's other apps that aren't used and aren't able to be disabled or uninstalled.
Hi guys. I wanted to let you know my findings and provide some test results of galaxy m51 battery life. Firstly, I will outline what was my priority for that test. I wanted to check how long the phone can last mainly on google maps navigation with additional apps in the background. Also this test is a bit static so to speak but had no chance travelling for so many hours. That said I believe SOT was tested correctly for my planned usage. I guess in a real case scenario, I would need to do some more browsing and perhaps occasional screen switch offs during a break like filling up the fuel or stop to rest on a bicycle.
How I performed my test.
1. I did some initial installations, downloaded my apps and logged in to social apps such as FB, Spotify so they can work in the background, send notifications etc.
2. Once I completed the setup, I charged the very new phone to 100%. AccuBatter reported capacity was 6800mAh designed capacity not 7000mAh and estimated capacity 6700mAh.
3. CPU-Z reported Snapdragon 730 so I regret it is not 730G and honestly I do not know how to check with online stores as the packaging does not help with this. Also, I plan to test POCO F2 PRO 8gb ram/256gb version the same way and see how it goes since I get better hardware, but I like SD card slot on galaxy m51. Very useful when resetting the phone.
4. Set google maps navigation, lunched another app which uses GPS and LTE for maps showing speed cameras, road works or dangers which I use alongside with google maps. I also start shuffle play on Spotify to imitate streaming the music in my car or on the bike.
5. WiFi, LTE, GPS, Bluetooth, sync was enabled, blue light filter enabled.
6. Between 15-20 apps were in the background.
7. I unplugged the device from the mains.
8. Initial 15% discharge was with a WiFi connection with my router. Then switched of my router for overnight, left wifi enabled on Samsung but it had to continue downloading data over LTE such as Spotify music streaming. I also changed google map setting to day light only to avoid night backlight.
9. I went to bed? and in the morning there was still a lot of juice.
10. Around 20% discharge I took about 100 pictures most of them in burst mode to simulate a trip where you simply stop and take some snaps.
11. I stopped the test at 1% discharge and noticed no heating problem. The phone was cool during the test.
The overall SOT measured until 1% discharge was a staggering 17h 50m? Below you will find AccuBattery screenshots. At remaining 15% I had still over 2 h 42 m of use left.
This phone reminded me of good, old days of my Samsung galaxy s3 with a Zerolemon 7000mAh?
Now with my galaxy s7 deteriorating battery (current capacity just over 2300mAh) this is a great thing. For Galaxy s7 I also own a KiwiBird powerbank case of 5400mAh right from the beginning wich did its job when away from the mains, travelling etc.
I guess for a more accurate SOT, I would need to add some phone calls and browsing but even with I deduct 2h, it is still nearly 16 h of use. Like for me excellent. I also do not plan gaming.
On the downside of this phone it seems like my galaxy s7 takes a bit better picture, but it just might be my perception of selfies taken. Back camera is also just ok on a cloudy day. Ok but that is an offtopic.
I got my M51 yesterday and I am not fully sure yet about battery lifetime. I have charged it to 100% and about 8 hours and 2.5 hours secreen time later I am at about 90%.
Coming from my Moto Z Play I am not sure yet if I stay with the galaxy. The Mot Z Play with Incipio OffGrid Wireless Power Pack mod is about the same size and weight. Though provides less capacity (3300mAh phone + 2200mAh power mod) but battery lifetime still was bout 3-4 days usually.
The M51 is also getting considerably warmer during use.
I noticed also the Samsung battery saver with medium settings can reduce the CPU clock to max out at 70% which is handy. Not sure if there is any undervolting, underclocking tools as I think I would be perfectly fine with less performance - actually I was able to reach insane battery life on my old Galaxy P1000 with TricksterMod and custom undervolting back in the days.
I still believe better lifetime with the M51 would be possible bz reducing CPU clock and also with better screen brightness control. I noticed many times already that the M51 screen was too bright for me and having to reduce the slider to "minimum" position or very close to it. Also I noticed that the screen brightness slider is not linear at all. So on the last notch on the left side the screen really starts to dim properly while to the right there isn't much change. Also I like still to use automatic screen brightness adjustments but found the automatic adjustment often moves the brightness too high.
Also a possibility to limit the used screen area (e.g. display black bar on bottom/top) would save energy on the AMOLED screen while still providing more than enough screen space.
EDIT: One-Handed mode sort of provides this feature, but not exactly what I was looking for (like cinema-bars on top and bottom and no prominent "one-handed-mode" title.
I will continue to use the M51 for a couple of charges and decide if I am going to trade it again. The phone itself is performing well, supporting VoLTE WiFi calling but seems to lack carrier aggregation for no apparent reason. I strongly dislike the slippery, fingerprint-attracting, cheap-looking plastic backside of it.
I also hate that everywhere you tap it tries to sign up to a Samsung account. Also replaced the launcher with Nova launcher.
Below is the answer to almost all above useless posts
Battery life tests - GSMArena.com
Why I say useless ?
Simply. SOT will be completely different when you read ebooks compared when you watch movies or browse Internet.
Gsmarena does standarised comparison
I am fan of long life battery phones. I used "king" Lenovo P2 for over 2 years. M51 is better.
I'm at the fourth cycle of charge.. and got 15 hrs so far.. have done a heavy idb debloating
maby it will increase over more charging cycles?
i m getting about 20h sot normal usage
facebook lite, browser , youtube , aliexpress and playing alphalt extreme 30 min
wifi and dark mode on
brightness between 10-40 %
data off
location off
this phone have a very good battery