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Now we know the reason why the battery is draining so fast on Galasy S Phones.
The simple reason the AMOLED screen.
If we compare the Droid X with the Galaxy S both with 1500mAh batterys. While the Droid X can reach up to 7:42 hours of battery life the Galaxy s can only 4:44 hours. Its sad because the marketing made us believe that AMOLED is power saving.
Here the full Test from laptopmag.com.
Did you not read this part?
"So should you steer clear of AMOLED phones if you care about endurance? Not necessarily. OLED technology uses the most power when displaying white, which is why Samsung chose a black background for the app menus on its Galaxy S phones. Since our battery test surfs web pages
, most of which have a white background, both the Galaxy devices and the Incredible were at a disadvantage. It really comes down to what you view most often on your phone."
I tested a mkv 720p video playing for 1 hour and it only used 15% battery. From that, the battery should last about 6.5 hrs.
I was reading a test on another site a week or two ago, and it claimed the Galaxy S ran a 720p vid of Avatar on loop for 7.5 hours before refusing to run the video any further as the battery had reached 20, so 4.5 hours seams a little low?
psp888 said:
I tested a mkv 720p video playing for 1 hour and it only used 15% battery. From that, the battery should last about 6.5 hrs.
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The brightness must have been set to VERY low, non ?
Not quite true that it's just the screen.
I installed a widget to turn off data connections entirely (running on 1G phone and text only) and I get about 4-5 days off a single charge now, and that's with moderate gaming/music/ebook use.
If I want to use the internet/email/whatever I just click the widget, it reconnects in 10 seconds and I am away.
I am also running the LG Optimus launcher as well, which I notice gives me much better battery life than TouchWiz/Launcher Pro/etc (although don't hit the volume button on the homescreen as it force closes)
Prasad007 said:
The brightness must have been set to VERY low, non ?
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it was indoor, with auto brightness, so don't know what brightness it was on.
psp888 said:
it was indoor, with auto brightness, so don't know what brightness it was on.
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Click to collapse
Well, that's pretty darn good then! I doubt I've seen battery life that good on my phone....
when the phone is set on auto brightness 90% of the time is less than 50% brightness
when is above 50% brightness it is super cool! that's when you see the full effect of the SAMOLED
if you set it to say 60% or 75% brighness you will see the full bloom of the colours.
I'm pretty *****y about my phone's battery life but i have to admit that watching mkv and avi videos on my phone does not drain the battery as i would have expected. 1h30min movie drained around 20% of the battery, brightness in the perfect middle, 3G on and all that. So i think 7h++ playback is definitly doable.
Oddly enough i have the impression that leaving your phone screen on for 1h30min would probably drain close to 20% of the battery (just an impression though, might be totally wrong).
Also, 3G drains a lot of battery. I messed up with my phone and didn't have the APN configured, so no 3G, battery performance exploded, especially if u'r in an area with not so strong signal
i only notice heavy drain on battery when i'm on WiFi or 3G
like browsing the web, downloading stuff
just having WiFi on and 3G on does not consume that much battery, it is only when they are fully active.
all other tasks like watching movie, or doing offline stuff, even playing games does not consume much battery
i can drain the battery with just 4 hours of constant browsing/download stuff
but i can go on the full 24 with 1 battery pack if i do not use 3G/Wifi
on JM1 (or maybe JM2) when i had no 3G and WiFi turnerd off, bascically it would be 2% off every 8h-10h iddle time which sounds really good. However, according to the reported capable iddle time of the phone, it's not that good. People also reported less consumption in iddle.
I don't think i had too many tasks runing in the background (definitly no task killers)
Will.1 said:
I'm pretty *****y about my phone's battery life but i have to admit that watching mkv and avi videos on my phone does not drain the battery as i would have expected. 1h30min movie drained around 20% of the battery, brightness in the perfect middle, 3G on and all that. So i think 7h++ playback is definitly doable.
Oddly enough i have the impression that leaving your phone screen on for 1h30min would probably drain close to 20% of the battery (just an impression though, might be totally wrong).
Also, 3G drains a lot of battery. I messed up with my phone and didn't have the APN configured, so no 3G, battery performance exploded, especially if u'r in an area with not so strong signal
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I fully agree with you. I'm surpised my phone uses so little power when watching a movie, coming from winmo I'm shocked I can use this thing for a day (12-18hours) before it dies. Overall I'm quite happy with my set up as everywhere I go I have power cables. Car (check) , Office (check.USB sync) , walking (check, 2000mha solar battery charger) and Home (power adapter). I'm power paranoid due to being with Winmo since the Aero 2130 to X1i.
And yeh, 3g kills things 4hours max when on 3g.
the main thing that seems to drain the battery for me is web surfing and widgets which use the data connection. I now run a minimalist set of home screens with few widgets and have already noticed an increase in performance and battery life. 3g is pretty power hungry, but since vodafones 3g connectivity is so poor, I am often forced to use gprs through the day anyway as I'm plagued with time outs and dropping connections (if anyone from vodafone is reading, I've only been with you 3 months, and already I know I won't be staying with you come the end of my contract!)
Something's gotta be wrong with the test? I mean, look at the Captivate and Vibrant, both do about 4h 45m, but the Epic 4G does 5h 34m? Same screen, same battery, no? Yet ~50 minutes difference? Must be something other than the screen doing something...
Regards
Tachikoma_kun said:
Not quite true that it's just the screen.
I installed a widget to turn off data connections entirely (running on 1G phone and text only) and I get about 4-5 days off a single charge now, and that's with moderate gaming/music/ebook use.
If I want to use the internet/email/whatever I just click the widget, it reconnects in 10 seconds and I am away.
I am also running the LG Optimus launcher as well, which I notice gives me much better battery life than TouchWiz/Launcher Pro/etc (although don't hit the volume button on the homescreen as it force closes)
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Tachikoma_kun, what widget are you using to shut off 3G?
I came to the Galaxy from a HTC legend and I miss the HTC widget that lets you shut down mobile date completely. When I first had my galaxy on JF3 firmware, I noticed there was an option in the settings to use '2G' only. But since flashing JM8 I can't see this any longer.
Most of the widgets I've seen do some jiggery pokery with the APN configuration to achieve the data/3G shutdown, does the widget you use do the same thing?
Thanks
What's the point of having an android phone if you can't use as mobile internet as you want? I'm on unlimited data plan and my SGS lasts less than half a day on full charge with data on. Its the same thing with my old experia x10i. So I'd assume its the 3g/hsdpa connection. I had a blackberry 9700 as well. Battery life shortens significantly with 3g on.
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Sent via the XDA Tapatalk App
I was able to add some real time graphing to the battery calibrator app where the current draw thru the battery is sampled every 2 seconds. This gives a very fine tuned accurate picture of what the battery is doing. note the battery driver had to be edited to allow for current readings taken at a faster sample rate, so all that work was done initially.
This first test is the phone switching from connected to 3G to switching over to wifi. notice the extreme difference between the spikes and then how smoooth it levels off around the 14 second mark. shows how much battery is saved using wifi (i'll come to this more later).
Switch from 3G to WiFi data by RogerPodacter
The second image is just showing the phone left completely idle 3g data, but with the screen on, min brightness, and timeout set to never. curious to see those regular periodic blips of current draw. notice -170mA is about spot on for the black amoled screen showing all black color like that. and this shows how efficient 3g data is during idle when no data transfer is taking place. This graph view is what was displayed during this time, mostly black.
Idle 3G Connection, Screen on Min Brightness by RogerPodacter, on Flickr
the next screen shot shows switching from screen brightness at minimum to maximum brightness, but showing the same black graph image. notice the slight increase, but it stays dead flat still. it switched at the 36 second mark.
Switch from Min to Max Brightness, Showing Black by RogerPodacter, on Flickr
This screen shot shows what happens to amoled when displaying a fully white image at maximum brightness. the power draw goes thru the roof! it started at the 16 second mark. i used the app "dead pixel detect" to display solid full screen colors, this one showing white.
Displaying a Solid White Screen by RogerPodacter, on Flickr
Same as above, but now switching back to the black graph view, the current drops down to normal. Swtich happened at about the 15 second mark.
White Color Max Brightness by RogerPodacter, on Flickr
The next screen shot shows why wifi gives so much better battery life. this shot shows receiving a new gmail email message over 3g data connection. right at the 20 second mark the email comes in, and the current draw spikes over -500mA. when the same email message is received while connected to wifi, there is not even a spike at all, it stays flat.
Receive Email over 3G by RogerPodacter, on Flickr
This is due to the much faster latency that comes with wifi. on 3g, the 200ms ping time, each direction to and from the server, all while the radio is fired up, is what causes the spike. now think about that happening all day long with all your google services constantly talking to their servers.
This next one shows loading a web page with a light color, and scrolling around. I loaded a thread here at XDA with the stock browser, without invert color turned on. look at the enormous spikes.
Load and SCroll Light Color web page by RogerPodacter, on Flickr
And finally, this is loading and scrolling the same web page, same thread, but with invert color option turned on, so the color was basically black and dark. (For these last 2 web page tests, i forgot to turn the screen brightness back from max to minimum brightness. oh well.).
Load and Scroll Dark color web page by RogerPodacter, on Flickr
If anyone wants more test comparisons done, just post your request. For the above tests, i didnt think things out too much, so i'd like to really do things over and show more/better scenarios of how power draw is effecting our phones' battery.
Interesting! Thanks for taking the time to put this together.
I had one more, from today. Watch what happens when i go and read a topic on the engadget app (entire white colors) while i was outside at max brightness. power draw sky rockets up, then back down when i return to the black graph view.
Browse the White color Engadget App by RogerPodacter, on Flickr
great data - can you check some apps, like words with friends & weather channel (background widget). words with friends tops out my cpu for no good reason.
fyid said:
great data - can you check some apps, like words with friends & weather channel (background widget). words with friends tops out my cpu for no good reason.
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how exactly would you like it tested? i've never used words with friends, and i never installed the weather channel widget either. the second one might be harder to test. is there a way to tell it to initiate its update or data transfer or whatever it is that it does?
The current graph is a lil bit confussing. Is the rightmost the oldest plot? and the leftmost is the most recent?
zeus_chingon said:
The current graph is a lil bit confussing. Is the rightmost the oldest plot? and the leftmost is the most recent?
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The right direction is older and the left is more recent. The full current graph only shows in seconds, around a minute or so. So this is like a true profile of all power, in real time, going thru the battery's resistor, and hence device power draw. So its great to see exactly what different tasks do to power behind the scenes.
I've been doing many more tests just for fun. My overall discovery is that the screen is bad, real bad, and there's a disproportionate difference between min and max screen brightness. Min is really good, but max is so far off the charts bad that its horribly power hungry. So I'm practicing keeping locked at min brightness. Then comparing things like CPU usage loading a web page in the background, then over WiFi then 3g, etc.
I'm enjoying seeing the bad offenders.
Thanks for posting these, you're just as helpful here as you were on the S60 boards @ hofo
Excellent analysis to visually confirm what has been known and constantly overlooked by people complaining about their battery life: the 2 major power-hungry things in the phone are the display and the 3G data - when it fires up.
You could also show GPS power draw, to have a good comparison between values. I'd guess that running Google Maps on full brightness during the day over cellular data will show near the maximal power draw possible from the device.
Jack_R1 said:
Excellent analysis to visually confirm what has been known and constantly overlooked by people complaining about their battery life: the 2 major power-hungry things in the phone are the display and the 3G data - when it fires up.
You could also show GPS power draw, to have a good comparison between values. I'd guess that running Google Maps on full brightness during the day over cellular data will show near the maximal power draw possible from the device.
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Good ideas, I'll do a gps test next. I've already done it but with no screen shots, and I can say it really puts I high load on the battery by far.
I also just now did a 3g phone call test, and it was higher than I thought it would be. I'll post the screen later.
I'm now a huge proponent of min screen brightness. If you can use min brightness then do it. If that's too dim during the day then 40% gives the best combo of still usable with decent power. But auto brightness, or max brightness which will happen in sun light, is just totally off the charts bad. And when loading a web page outside at max brightness, the power is thru the roof.
So I'm now locking my screen at 40%.
Edit: I also did color comparisons. Full screen of white, red, blue and green. Nothing too crazy but still cool.
Fascinating read. Keep up the good work!
Wow, very interesting.
Thanks man.
Wow I'm finally trying out stock gingerbread and the idle power readings are significantly lower than froyo. On froyo I'd see around 20mA and I'm seeing about 7mA now consistently. My app doesn't work on stock so I don't have fine control but it definitely makes sense from reading what people are saying.
Nice little review.
Out of curiosity, do you think there's much difference between AMOLED, SAMOLED and SAMOLED+ in terms of power consumption?
I'm eyeing the Galaxy S II as my next phone and online reviews all rave about how power efficient it is. But we all know how that isn't entirely true!
The SAMOLED displays are supposed to be 30% more efficient then regular AMOLED.
Hmm, and I have a Nexus S, and that SAMOLED seems to be total crap... lol
tangcla said:
Nice little review.
Out of curiosity, do you think there's much difference between AMOLED, SAMOLED and SAMOLED+ in terms of power consumption?
I'm eyeing the Galaxy S II as my next phone and online reviews all rave about how power efficient it is. But we all know how that isn't entirely true!
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Samsung claims a 30% increase in power savings, bit I don't believe it for a second and here's why.
First, both the nexus one (amoled) and nexus s (super amoled) both get IDENTICAL browsing test results, both make it 3.7 hours at anandtech. Nexus s has slightly larger screen but also has larger battery.
Second all you have to do is look thru galaxy, nexus s, and galaxy s2 forum. Not a single one has anyone getting more than 4 hours of screen on time in the battery threads. Not a single bit of improvement, at all, between the amoled technologies.
Then to rub it in, iPhone 4 crushes it getting a full 10 hours of browsing time on the same test.
LCD is becoming my preferred choice more and more. Testing an HTC inspire with slcd, it pulls 250 mA Max brightness. But my test results in this thread alone shoot up to 900 mA just loading white pages.
Hmm. So wonder whether it's worth getting the HTC Sensation instead of the Galaxy S2...
Wow! With full brightness on a mear-white page and the torch on, I was drawing 747mAH...
Radio versions
There were conflicting reports about power consumption of various radio versions including versions 5.08 and 5.12. It would nice to see a more solid evidence of how these radios perform. Thanks ...
Can we start collecting some stats. Can people post what battery percentage they lose every 30 minutes or an hour of just browing websites on wifi and/or 3G and specify which one, and also average screen brightness during this time. I know this tablet using superAmoled will have less battery life than if you watched movies, but there should be some standard of web browsing.
I use about 20% battery life, just on wifi, brighness at max of 30%, battery stats showing no abnormal activity in the background.
[edit] on ICS 2nd stage. using Chrome browser.
About 13% per hour here. This is a P6800, using wifi only (radio turned off), in an area with low wifi signal (2 bars). Minimum brightness, CM10, default JellyBean browser.
(EDIT: 20% in 1.5h, so 13-14% per hour)
Steve_max said:
About 13% per hour here. This is a P6800, using wifi only (radio turned off), in an area with low wifi signal (2 bars). Minimum brightness, CM10, default JellyBean browser.
(EDIT: 20% in 1.5h, so 13-14% per hour)
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I think this is an accurate SGT 7.7 battery test http://blog.gsmarena.com/samsung-galaxy-tab-7-7-battery-test-results-are-ready-does-well/
kaimyns said:
I think this is an accurate SGT 7.7 battery test http://blog.gsmarena.com/samsung-galaxy-tab-7-7-battery-test-results-are-ready-does-well/
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i did read that yesterday while scouring the web for web-browsing results for the SGT 7.7, which is why I was hoping we could all share our experiences, since I know myself, and it sounds like others, are not getting 7 hours of straight web browsing. Me I am getting 5. Starting to think it is a hardware defect and to contact Samsung, but wanting some more data also.
That's a bit worse than what I'm getting on CM10. Quite impressive, I'd think Samsung would tune their ROM better than what the community could do in a couple of months.
idiotekniQues said:
i did read that yesterday while scouring the web for web-browsing results for the SGT 7.7, which is why I was hoping we could all share our experiences, since I know myself, and it sounds like others, are not getting 7 hours of straight web browsing. Me I am getting 5. Starting to think it is a hardware defect and to contact Samsung, but wanting some more data also.
Click to expand...
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Screen shot you battery usage and post. Maybe there is an app we can see causing your drain. If your screen isn't drawing 70%+ there may be an app running out of hand.
Sent from my GT-P6800 using xda app-developers app
With wifi and auto brightness, max is 5 hours screen up time. How they get 7 hours? @@
well I switch from chrome to opera and battery life is much better in initial usage. 16 percent battery in an hour in 15 minutes. auto brightness in a dim indoor setting. tablet temp is also not going over 100 where with chrome that was normal. Will test for a few days.
end of one full battery session only using opera mobile to browse.
with 37% left I had the screen on for 4.25 hours, auto brightness indoors, most of which was browsing. while browsing i also downloaded 2 HD movies from google play on wifi as well as updated about 10 apps and downloaded a couple more. after watching 1:35 minutes of an HD movie at about 80% brightness, the battery only went down to 26% from the 37% which is what i am used to for this tablet for video, it's amazing due to the lack of pure whites and a lot of dark colors including the black bars. browsed the web another 20 minutes, only lost a few more percent. put it on the charger at 22% and will pick it up again tomorrow.
also regardless of what browser i use, my tablet is a standby machine. with the screen off i may lose a percent every few hours.
during the screen on time my temp went over 100 degrees only while downloading movies and browsing. and it only went to 102. just browsing with chrome the tablet would get to 107.
will test again tomorrow and see if the trend continues or if this was an anomaly. if i get three days in a row with this kind of battery life, i am uninstalling chrome and sticking with opera for now.
This is my stats after almost 5 hours on 3g. Activities includes Web browsing, music streaming etc.
Sent from my GT-P6800 using xda premium
using stock honeycomb 3.2, I also have the ics update but I won't do it
1 hour for 10% how much I will get? do the math ^_^
and now after 4 hours of continuous usage, still 60%
Sent from my GT-P6800 using Tapatalk 2
well it's been some days since i stopped using chrome and tested out numerous other browsers. here are my results.
using chrome my tab would get quite warm and lose close to 20% an hour browsing on 20-50% brightness. the stock browser wasn't much better.
i have tried opera, maxthon, boat and xscope. maxthon is just not good layout wise on a tablet. maxthon tablet is quite nice with an awesome and fast night mode that turns text into white, the background into medium gray and still shows all the pictures in full color - which is amazing for a samoled screen not having to produce all these white backgrounds. however it FC's a lot and you can see that in the comments. keep an eye on this browser as it is being developed.
xscope just doesn't have a nice enough interface for me on a tablet. boat also got my tablet warm.
so opera mobile. my battery life has gone up extensively since i started using this. with heavy heavy browsing i am getting between 7-8 hours battery life. with steady browsing mixed in with other things like using pulse, taptu, play store i am getting 8 hours+.
i monitor my temps and they stay much much cooler, like 7-10 degrees and often more. with chrome or stock i would notice the left side of the tablet getting warm quickly.
i am running the stock ICS stage 2 ROM, rooted. standby time is amazing, i will not lose more than a percent of battery every few hours. i used to keep GPS on and do quite well standby but in better battery stats i noticed MAPS having wakelock time for many minutes while on standby even with settings set so it shouldnt. so i just turn GPS off until i need it. other than that, nothing special.
for those with lower battery life on wifi browsing, try opera for a few days. let us know what your results are.
well it's been a week since I switched browsers. i have to say it's like having a brand new 7.7
chrome is uninstalled. the stock internet is never used. i ended up testing the maxthon tab browser and opera. the last 4 days just exclusively opera mobile.
i don't think the maxthon tab browser is ready for prime time even with an update in the last week. keeping an eye on it.
opera mobile has been the best option, though it has some features i feel need tweaking and others that are better, it is still a nice browser. it also creates far lower temps, lower cpu usage and far better battery life with my tab. 2 hours more per charge at least than chrome or stock.
i hope this helps some people out who are having battery issues in regards to standard internet browsing. if you encounter simliar success, please post.
I don't lose a single percentage in battery when I sleep at night after the ICS update. That's 6-8hrs of sleep. Is that normal? I am happy about it though, but is it normal?
jerverg said:
I don't lose a single percentage in battery when I sleep at night after the ICS update. That's 6-8hrs of sleep. Is that normal? I am happy about it though, but is it normal?
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Yep
Sent from my GT-N7100
sos_sifou said:
Yep
Sent from my GT-N7100
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Nice. I thought my Tab was kind of 'over-sleeping'. Haha. Thanks!
Here's my battery usage... Currently at 9% after a full days use with about 2hrs+ surfing on 3g, 2hrs of satnav and a few texts and calls. Pretty impressive i think. I am using Dolphin browser which for me blows all the rest away. Good on battery, great gestures and fast.
Here's mine. I was listening music for about two hours while browsing
Sent from my GT-P6800 using Tapatalk HD
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 Moto X4 before depleting the battery.
Then, drop a comment if you have anything to add!
I'm getting 6+ hours and true all day use, easily.
Easily the best SOT of any device I have owned... Over 6 hours yesterday and was at 45% when I plugged in for the night. I don't believe I will need to charge this thing at all other than overnight. Amazing!
Crap I'm getting 4 hours at a stretch.
mightysween said:
Easily the best SOT of any device I have owned... Over 6 hours yesterday and was at 45% when I plugged in for the night. I don't believe I will need to charge this thing at all other than overnight. Amazing!
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The X4 has a bad cell reception. On wifi i get 7-8 hours but in mobile data only 4h maximum
I was off WiFi yesterday traveling and still had nearly 7 hours SOT by 10pm and 12% battery left. I live in rural Wyoming.
I'm at 3.5 hours SOT, and I'm still at 43%. A good bit of that was relatively intensive. I had GMaps download 3 offline maps covering 5 states, Play Music downloaded ~3GB of music for offline. I logged in and set up a bunch of apps (social media, etc), and played Clash Royale for ~1.5 hours.
AccuBattery says I'm averaging 11.2%/hour Screen On, and 0.7%/hour Screen Off.
Clash Royale is ~13-14%/hour, where both my old Nesux 5x and Nexus 7 (2013) were ~25-30%/hour.
I am extremely impressed with the battery life on this. I can't wait to get a kernel with hotplug and root with Greenify to see if I can't get it down even more.
Update: Over a 36 hour period, I got 5.5 hours SOT, and plugged it in with 12% left. That includes running benchmarks, playing games, and all the stuff I mentioned in the previous post. I'm guessing I could get 7-8hours in a day of continuous light usage, and probably an average of 6 hours SOT with a generous mix of gaming and youtube thrown in.
Overall, I'm VERY happy with the battery life.
Had 4:40hr sot at 51% battery
That's Nobody said:
I was off WiFi yesterday traveling and still had nearly 7 hours SOT by 10pm and 12% battery left. I live in rural Wyoming.
Click to expand...
Click to collapse
What service provider, Verizon or AT&T? I live in Wyoming too.
Background color
Can anyone help me with this question? I read that an LED screen will consume slightly less power the "whiter" it is, unlike AMOLED. So I've been changing all of my wallpapers, backgrounds, etc. to white/light to help the battery life. Could someone add to this with some facts?
TerpU82 said:
Can anyone help me with this question? I read that an LED screen will consume slightly less power the "whiter" it is, unlike AMOLED. So I've been changing all of my wallpapers, backgrounds, etc. to white/light to help the battery life. Could someone add to this with some facts?
Click to expand...
Click to collapse
That is false. OLED or AMOLED screens are made up of thousands (millions) of tiny LEDs, so black backgrounds save power by simply turning off a portion of the screen when it wants to show black. This is why you get battery saving.
The screen on the Moto X4 is a LED-backlit LTPS IPS LCD. Because the backlight is separate from the LCD itself, and the IPS LCD is an active matrix, there's no way to reduce the power consumption simply by changing the color. The IPS LCD has to use power to change the color no matter what it is, so it's kind of irrelevant. The only change that can (and WILL) make a difference on your battery life is brightness of said backlight. This is why everyone knows to lower your brightness to save power.
If there was a way to segment out the LED backlight into a per-pixel basis, then you could obtain the same battery saving features as an AMOLED screen, but at that point you're basically building 1/3 of an AMOLED screen anyways, so why not just build the whole thing?
An interesting side note, because these phones are using LTPS technology, the LCD itself does use less power than older phones, even at the same resolution. It's still dwarfed by the consumption of the backlight, but power saving is power saving, amiright?
wow, this sd630 is awesome! getting 6+ hours with some heavy wifi downloading, installing apps, making a hotspot, streaming music, watching videos, etc.. why did i ever want a flagship?? my old op3 couldn't get close even underclocked and with a black substratum theme lol
battery life is crazy on this phone. what did lenovo/moto do?
i can use it for social media and some gaming and I'm always on 4g and theres days when I dont charge it at all. loving it.
I got 6+ hrs SOT on 1st day let's see how it's perform in next few days
I am getting 8 hours SOT with moderate usage. However I am using data over WiFi only and no gaming.
battery life is great here as well.
even with 2.4ghz wifi (being at reasonable distance from the router),
browsing on screen time with speakers playing music but not on loudest,
i seem to be able to hit 10hours easily.
best phone battery i've had. (compared with Samsung SII plus & Moto g3rd
(I don't play games on my phone tho so i can't comment on that)
i'm a heavy user but only play Marvel contest of champions on my phone sometimes. Mostly i play youtube videos on loudspeaker with maximum volume, check facebook, twitter, chat on whatsapp etc. And i'm still getting nearly 6 hours of screen on time!
I don't track my SOT but definitely impressed with the X4. I normally charge my phone (and remove the charger) before going to bed (12mn) and until now (it's 2pm here), I still have 60% battery left.
I don't play games but I frequently use my phone for social and media consumption.
I'm not worried that my phone won't last til I go home (~10pm).
With my previous phone (HTC 10/ Huawei P10), the battery percentage may be around 40% by now.
Mine on first charging...
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
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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?
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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 ?
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Could have answered like a normal person.
GoogleoverK said:
Could have answered like a normal person.
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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.
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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?
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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...
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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