G950 Battery Life/SOT discussion - Samsung Galaxy S8 Guides, News, & Discussion

Let's get this discussion rolling. Post your battery usage, SOT and device model (SD/EX, carrier/unlocked) here! Reviews have mostly said the S8 battery is about equal to the S7, maybe a bit better or worse depending on who you believe, so I'm eager to get a general idea of how endurance will be when my S8 arrives May 5th.

I'm impressed so far. Yesterday, charged to 95% and over 9 hours of mixed use, with about 2.5 hours of SOT, I was sitting at 48%. What is great is I had AOD on *and* the resolution at max with no power saving features. I wanted to see how it was going to perform at top performance and then work my way down. Right now, been off the charger for 75 minutes, 26 minutes of SOT and have 93%. That extrapolates to 6 hours SOT. It will be more like 5 used throughout the day obviously but this is pretty good.

Regular s8 full screen brightness, bluetooth and location on...took off charger at 6AM at 100%, 4.5 hours later it's at 76%. Connected to my car through bluetooth playing music through my hour long commute and using the internet. Not amazing but much, much better than my s6...for now. I plan on getting a battery case eventually when they're available which is partially why I opted for the regular s8 - those battery cases can be pretty big.

Early signs look promising, so far. Hope the thing Samsung said about these batteries aging much more gracefully is true, and that the S8s will maintain their battery over the course of their lifetime.

I'm at 6 hours 13 minutes of SOT mostly youtube and have 25% battery left. AOD, Bluetooth for watch, wifi, and phone at fhd+. 10 hours 53 mins on battery with 36% screen usage. I bet this phone can do 7+ hours of pure youtube, watch some youtube test showing around 17% usage per hour youtube.

Ugh. This bites

Related

Again with the Battery

Is anyone that is having battery issues running Adao Task Manager and Battery Status Pro?
I just factory reset my phone and I got 24hours of batter life. About 8 standby but a good deal of texting, web, some calls and some you tube.
I installed Task Manager and Batter Status Pro last night and my battery this morning went down 15% in about 1hr.
I uninstalled these today and will post again but has anyone else seen big battery drain from these apps or does anyone that is having issues running something similar?
I have been playing with the battery for about a week now.
For me this phone runs pretty good during stand-by. I would have about 2-3% drop for a whole night (7 to 8 hrs), with Google (push), Twitter and weather syncing.
The problem is when you use it, it drops like crazy. When I read news or surf the web, it would drop 1% every 1 or 2 min.
This morning I read an ebook, with black background for about 30 min, it dropped about 3%.
So basically i think the screen, data connection, and non-black background are the ones that kill the battery.
Yea, I agree, the S-AMOLED screen in this thing is an energy hog. OLED's are supposed to be more energy efficient than typical LCD's but I'm just not seeing it. Whenever I look at battery usage stats it shows the display at 70-75% of battery usage. Thats ridiculous. I have until the 18th, but I'm quickly leaning towards returning this and just getting an iphone4. This phone is becoming more and more disappointing the longer I have it.
This morning I have been uplugged 4.75hrs and used 16% no battery monitor and no app killer. Basically done the same things I did yesterday. Some Bebbled,texting, email, phone calls .
I will update tomorrow with total hours battery life for today. Would be happy if I can replicate the 24hours I got the day before installing those apps.
I got like 45 hours of battery with moderate usage during the two days. Seems fine to me, I occasionally used system panel to monitor if anything was using high and constant CPU
This is pretty typical of a 1ghz phone My nexus would last a day of heavy usage, 2 days if i use it lightly. We need to wait for undervolted kernels to be developed xD
Also, it really helps if you disable 3G when you don't use it. This allows me to get 3-4 days of light usage out of my nexus. I haven't played with the Captivate long enough to know how much of a difference this makes on this phone though
when you guys refer to "stand by", what exactly do you mean? Just screen off/phone idle? The battery usage on my phone when I use it seems to be OK even if not amazing, but it continues to sap life from the battery when I'm using it at an alarming rate.
Standby is when the phone is idle/screen off/locked.
The display is definitely power hungry. Using the Power Control widget that comes installed definitely has helped with battery life. It will let you toggle WiFi, BT, GPS, Data Sync, and Brightness (at 3 levels). When I'm not using anyone of those, I turn it off. When I'm indoors, I'll set the brightness to the lowest level. I'm usually at my desk when I'm streaming music, so I'll have it plugged in.
derek4484 said:
Yea, I agree, the S-AMOLED screen in this thing is an energy hog. OLED's are supposed to be more energy efficient than typical LCD's but I'm just not seeing it. Whenever I look at battery usage stats it shows the display at 70-75% of battery usage. Thats ridiculous. I have until the 18th, but I'm quickly leaning towards returning this and just getting an iphone4. This phone is becoming more and more disappointing the longer I have it.
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Actually they are more energy efficient on black screens, But screens with a lot of white in them suck battery bad.
alphadog00 said:
Actually they are more energy efficient on black screens, But screens with a lot of white in them suck battery bad.
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Click to collapse
This is true the white screens burn the battery etc. I just wanted to let everyone know what I did to make my battery last more that 24hrs.
First, read the Wiki guide and apply some of the battery saving tips.
Second, UNINSTALL a program called "gReader" created by noinnion. This program is a huge battery hog! At least it was for me.
Hope this helps.
Well I guess I am one of the "lucky ones" Im running a live wallpaper and have not run my battery down since the 1st day. Right now Im at 40% life and at 15 Hrs 30m since unplugged. This is with checking facebook, twitter, email, phone calls, internet browsing\video watching and following the steps for the GPS fix. The only thing I have done is install ATK on the phone, besides that its all stock.
One thing I know is a huge battery drain is Time without Service. Check that stat and see if you have anytime at all without service, if so, I am pointing to that as a major drain on the battery. I know currently I have 0% Time without signal, my fiancee however is usually in the 20+% range and her battery drains like many reports I have seen here (she has an EVO).....
Yesterday I only managed 16 hours. Web, Email, A bluetooth file transfer, short bit of gaming. I have about 5% of the cell standby time (26%) without signal. My girlfriend has the Aria which is running Android 2.1 also, has all sorts of widgets, haptic feedback on and can make it at least 24 hours. I get that it has a smaller screen but it is also an LCD. Shouldn't the Super Amoled be saving our battery some display consumption.
i get about 14 hours or so moderate usage and at the end of the day, i have about 35% left at night.
If you detail the "Display" usage in the battery usage details how many minutes has your screen been on? Mine says 1hour 2mins ...this is for 8 hours of running time. My display is using 50% of the battery (which is at 68% now).
W00t W00t today I have reached a new high 2 Days 6 hours and 29 minuts with 12% battery left.....
What I have found is keeping Wifi on while I am at work and home like almost doubled my battery life. Which is great that I can use Wifi all day and not drain the battery so fast like my Fuze. Right now been off charger since 7:30am and I have 84% left. Yesterday after 9 hours I was still over 50%. For me its better than any other smartphone I have owened.
I used manual brightness, (swipe notification bar), turn off GPS/BT. black wallpaper and set Wifi to never sleep. Also the power saving mode in settings is off for other reason and doesn't affect battery.
At 18% right now and it's been off the charger for about 30 hours. I noticed yesterday that while I was connected to wifi at home (with Y5 app), it was draining faster than when I was connected to 3g. Did some tested back and forth and JuicePlotter clearly had a noticeably steeper downward slope for when wifi was connected than when it was using 3g. Weird :\

[Q] Standby time?

Hello all, I'm planning to get myself one, when it will appear in my country... Question is, how much battery consumes in standby? I mean, number of hours before it is under 5 percent and needs recharge, from 100%. For example an Ipad has 30 days, I've read numerous reviews that show EEE Transformer in a bad light, with sleep mode eating 20-30 percent per night, or 30 hours standby(Engadget) at most. Rest of reviewers don't point to standby time, only to battery life, I want to know if it dies after 30 hours of sleep mode. WiFi on and without, it's good to know. For example My Galaxy S with WiFi on and a weather app refreshing every hour, with Gmail, has 2 days before it drops below 30%, I don't talk that much on phone and never use Internet browsing on it.
deio said:
Hello all, I'm planning to get myself one, when it will appear in my country... Question is, how much battery consumes in standby? I mean, number of hours before it is under 5 percent and needs recharge, from 100%. For example an Ipad has 30 days, I've read numerous reviews that show EEE Transformer in a bad light, with sleep mode eating 20-30 percent per night, or 30 hours standby(Engadget) at most. Rest of reviewers don't point to standby time, only to battery life, I want to know if it dies after 30 hours of sleep mode. WiFi on and without, it's good to know. For example My Galaxy S with WiFi on and a weather app refreshing every hour, with Gmail, has 2 days before it drops below 30%, I don't talk that much on phone and never use Internet browsing on it.
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I can't compare to Ipad, but overnight the Asus drains about 5 to 10 percent. That is wifi set to switch off when screen is off. Second about the Endgadget review, my asus lasts on one charge 2 days (48h) normal use, that is normal usage: playing, web browsing, reading, overnight screen off, etc. So you see 30h of sleep mode is very very very wrong because not optimized/too many apps/wifi on.
So I'm no longer reading reviews of the asus, but reading/playing on the Asus
Hope this helps,
rio
but still it looks not that much compared to apple ipad2, which is kinda sad. I was kinda hoping that this device outperform ipad2 in battery too...
some reviews claims it gets close (1hr difference) and some say not even trying (6hr difference) against the iPad, but I think some of them were using live wallpapers which drain battery pretty fast. It has never stated to be better than the iPad though unless it was with dock.
I dont know if it lasts so much as ipad. However, in my exp. with ipad1 when it had ios 3.2. battery was lasting ages, almost no loss overnight as you point out.
After updating it to 4.2 battery was really drained hard. It was difficult to have it running more than 2/3 days on a row. And the difference came on non use periods. On continous use, it was lasting about the same.
This is, are you sure ipad is doing 30 days?
The only thing that lasts almost a month in standby time in the android world is the galaxy tab.
The battery is definitely not as standby friendly as the ipad. My mom has the first gen ipad and it uses basically no power in standby. On my transformer, I get a drop overnight (8 hours or so) of about 2-3% with wifi off. I use setcpu with a screen off profile to restrict the cpu to the minimum frequency.
It's disappointing because my droid incredible, with a 1500mah battery (1/4 of the transformer?) doesn't drop at all overnight in airplane mode.
I just turn mine off at night b/c I have no need to sync stuff overnight. For that matter I also turned autosync off by default for most apps even when it is on. Basically uses 0 battery that way (maybe 1%). I know that doesn't work for everyone though.
I pulled my TF & dock off the AC on Tuesday at about 7:45AM, both fully charged. As of an hour ago, I had about 72% juice left in the TF (dock is drained). It's been docked the entire time. I've only used it lightly the last 3 days. I did download & install 3.1 during this time as well.

keeping tf 101 battary alive - some queastions

hi
iread alot of articels, suggesting that the best way to keep tf101 battary is to let it drop to 50%, and charge. and never let it drop below 40%/
is it true?
and iam lossing around 10 % in 1 hour using wifi and internet.
i have the tablet for 1 month - and untill today it reach to 80% and the dock charge it all the time.
what is the best way keeping the health of battary as long as passible?
thanks!
It depends who you ask really.
I always do a full discharge and a full charge. A full charge is usually considered below 30%. This keeps your battery health longer. But some people say that by doing that, you're using up your battery faster because they have a limited cycle count. So you have to balance health with durability. Do you want your battery to live 10 years but only at 30% capacity (discharging super fast because it never full charges anymore) or to live 5 at near 100% level? I've been using mine almost daily for roughly 2 years and haven't had any issues whatsoever related to battery.
I also suggest Greenify to help preserve battery power while in use.
I have never worried too much about when to charge. I just charge it at night. Every night. I use it during the day. My dock battery is starting to lose life, I would say it only has 60-70% of its original capacity but the tablet battery is still strong. Just watched 4 episodes of Boardwalk Empire on a flight from Paris to Boston, brightness a 5 in MX Player, BT, WiFi and GPS off, battery went from 96% down to 49% after 4 hours of video watching (undocked).

How's your battery life

I love everything about this phone but the battery . Im hoping to get 2hrs of screen on time . Anyone else have issues with the battery. Any tips would be appreciated.
parmend said:
I love everything about this phone but the battery . Im hoping to get 2hrs of screen on time . Anyone else have issues with the battery. Any tips would be appreciated.
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Click to collapse
Try turning off the Always Scanning for WiFi option. Also, change the Sync settings for apps you don't need to be synced at all times. And Location setting to Battery Saver.
Sent from my SPH-L720
optimummind said:
Try turning off the Always Scanning for WiFi option. Also, change the Sync settings for apps you don't need to be synced at all times. And Location setting to Battery Saver.
Sent from my SPH-L720
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When im at home i can pull close to 4hrs screen on . If im not on wifi the phone idle is terrible. I probably drain 6% or more per hr idling. Its hard coming from a note 4 , but i guess it is what it is.
parmend said:
When im at home i can pull close to 4hrs screen on . If im not on wifi the phone idle is terrible. I probably drain 6% or more per hr idling. Its hard coming from a note 4 , but i guess it is what it is.
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Draining at 6% per hour is not good & unusual. But for Android 5.0.2, it seems about right, unfortunately. My N5 drained at that rate before the 5.1 update.
On my S4 with its 2-yr old battery, I drain at 3 to 3.5% per hour on idle with both WiFi & LTE turned off.
On my N5 with a new battery & 5.1, I idle drain at 0.7 to 1.5% per hour.
I'll add my battery drain rate once I get my S6E tomorrow.
Sent from my SPH-L720
This is mine on light usage. I noticed etter after a factory reset. Heavy usage is between 6 and 8 depending on wifi
I'm debating going to get one of these... My Note 2 keeps not charging and the stock battery died in 1:10 (from 50% to 1%) during a run yesterday. I was using spotify and mapmyrun.
Today is my first day after first full charge and my battery drains at ~3.5% hour, per GSAM.
I have screen brightness at little bit below the half-way mark with Auto Brightness checked.
I disconnected my phone at 6 AM and right now, it has been on 16 hrs 30 mins. I have gotten 2 hrs 30 mins SOT with 45% left.
Wifi active for 6 hrs, LTE for about 1 hr.
Screen has used 52% of my battery, Wifi 15% (5.0.2 shortcoming), Bluetooth (2%), Held Awake (0%), Phone (0%), Phone Radio (0%), App Usage (31%).
So far, the S6E is outperforming my Nexus 5 on 5.1 with a brand-new battery I swapped in on 4/1/2015.
Happy with the S6E's battery life, especially considering it's only 2600mah.
a little over 6hrs and it went from 100% to 14%. Granted 56%-23% were on a 1:43 run using Bluetooth headphones + spotify and mapmyrun mapping my way. Oddly, when I look at the battery usage, OneDrive is at 18%!
18 hrs & 37 mins off the charger with 4 hrs 8 mins of SOT. 17% battery left. I'm very happy with this. Update to 5.1 should improve it a lot more as it did on my Nexus 5.
Android System & Kernel battery usage is pretty decent. Those two on my N5 on 5.1 drains way more battery than it does on my S6 Edge.
When I'm not actively using my phone, the idle battery drain rate is pretty good - 1.9%/hour (similar to my N5, with the N5 being a bit better).
13 hrs & 9 mins off the charger with 2 hrs 20 mins SOT --> 52% battery left.
All this is without Root and my usual battery-saving Root programs.
Once 5.1 rolls out and if I decide to Root the phone and add battery-saving Root apps, I'm expecting to achieve 6-7 hrs SOT.​
optimummind said:
18 hrs & 37 mins off the charger with 4 hrs 8 mins of SOT. 17% battery left. I'm very happy with this. Update to 5.1 should improve it a lot more as it did on my Nexus 5.
Android System & Kernel battery usage is pretty decent. Those two on my N5 on 5.1 drains way more battery than it does on my S6 Edge.
When I'm not actively using my phone, the idle battery drain rate is pretty good - 1.9%/hour (similar to my N5, with the N5 being a bit better).
13 hrs & 9 mins off the charger with 2 hrs 20 mins SOT --> 52% battery left.
All this is without Root and my usual battery-saving Root programs.
Once 5.1 rolls out and if I decide to Root the phone and add battery-saving Root apps, I'm expecting to achieve 6-7 hrs SOT.​
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Ive noticed that turning off location and disabling google now has helped my battery life a lot.
I love this phone, but the battery life is the one terrible thing. 7-10 hours seems to be the max. I might have to return it and suffer the summer until the note 5.
i'm surprised to hear about all the negative battery life issues on this phone. on my GS3, i'd lose 3-4% battery just driving to work - now I get there and still have 100%. maybe i'm just not as heavy a user, but the other day my phone was off the charger for 16 hours and I still had 43% when I got home - and that included using Google Maps for 20 minutes, texting throughout the day, and using a bunch of apps. when idle, I generally only get 1% battery drain. my only complaint about the phone is some of the UI that I can't customize, but it's only a matter of time before custom ROMs are available...
I lose 10% or more battery on the phone regardless if I'm using it or it is sitting with the screen off. When I drive the 45 minutes to work, the battery is at 89%-93%.
A 1hr run with it on my arm playing spotify/mapmyrun seems to use about 26%.
Basically, I'm always worried now about the battery dying when I'm using it.
at the end of next month, I have a 14hr+ a day for 4 days music festival where I can only charge it at night. 7-10hr battery isn't going to work for me. It seems bizarre to me that they made the best phone ever, but skimped on the battery.
drive to work today with the phone just sitting beside me, 100% to 86%.
revaaron said:
drive to work today with the phone just sitting beside me, 100% to 86%.
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Is your location on? I had to disable google now. Turned off nfc, advanced wifi scanning.
my battery sucks too :/
i live by the charger even more
with all the same activities that got 7-10 hours on my Edge, the Note 4 is getting 14-24hrs.
Battery is beyond horrible!
Wifi is off
NFC is off
What else can I turn off? I can't even get half day out of this POS.
chirayu said:
Battery is beyond horrible!
Wifi is off
NFC is off
What else can I turn off? I can't even get half day out of this POS.
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I think you actually want Wi-Fi to be on. I find that on any android device I burn more battery when using cellular networks.
Alitheia said:
I think you actually want Wi-Fi to be on. I find that on any android device I burn more battery when using cellular networks.
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Click to collapse
I meant, when there's no wifi access points are in place.

what is your per hour average battery drain?

Almost a month since purchasing (Amazon return window coming up fast). Here's my experience given that I walked right into this battery-gate issue.
Disclaimer: I'm a heavy user. I get A LOT of email notifications, WhatsApp and keep the screen fairly bright (never less than 7 out of 10). It has Verizon LTE service. Verizon said this would not affect my battery life....
Week one. On a full charge I could only get about 5 hours. Off the charger 9 am and by 2pm it was back on the charger for a one hour re-charge that got me home until it was back on the charger for the night.
I had to purchase a second charger for my desk during the day. I picked up a third for $8 just to keep in my bag for when on the go.
Week 2. Same 20% drain per hour.
Week 3. I switched off diagnostic notifications, and switched from vibrate alerts to sound alerts. Big improvement. I went from 5 hours to about 9 hours. Battery drain is now 11% per hour.
Zero Lemon needs to make an S3 case...
And it needs a fast charging port. A Battery this small would charge quickly with a cord. 2 hours for 0% to 90% is pretty ridiculous in this era. My Note 3 charged to 100% in an hour 4 years ago.. And yes I know it's for waterproofing but other makers like Garmin and Polar use charging ports with waterproof gaskets.
I was getting about 2 to 3 percent per hour until a few days ago when the battery drain bug hit. At that time, it was almost 12% per hour.
I did a factory reset and I'm sitting at about 1.6 to 2 percent per hour.
I get about 1-2% but I don't need the fitness tracking stuff so i usually have Samsung health disabled and AOD off but location on and wake gestures on. I also have the diagnostic option off since the day I got it. I read somewhere the current battery bug can be averted by turning the diagnostic option off. I get 20+ emails a day and about 30+ texts and WhatsApp each. So I generally use my watch for texts, WhatsApp, emails, weather and Samsung Pay
With AOD ON and use for many things : cheklist, note, memo, notification, alarm, timer, stopwatch.... I have average drain of 3.5% at 4.5% by hour. I'm happy when I have 3.5% but it grow quicly to 4%-4.5% if I use a little. Just but can live with this.
For those who have serious battery drain on v3.0.0.2 (and even have broken sensors such as heart rate detection like me) can go for repair, if still covered by warranty.
I have recently the same behavior as described by many after upgraded to v3.0.0.2, battery drain 20%/hr and it become worse when I found out wake up gesture is not working at all, so is the heart rate sensor as well as steps tracker.
I hesitated whether to send it back to repair, but in the end so glad I did, it only took 1 day and they informed me they have changed the motherboard and replace with new battery (as I told them about bad battery drain issue as well). And guess what, I got back my gear s3 frontier with everything working but on old enough firmware 2.3.2.3 (which is working pretty good, just that battery usage around 5%/hr not that great).
After that I decided to take the risk to upgrade my firmware to 3.0.0.2 again, and whoa, everything still works perfect and battery drain has gone! Battery usage is now around 1%/hour which is acceptable I think.

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