Database Users

BATTERY LIFE: Standby Drain

When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the Note5's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!

I'll test this later today. Charge my phone to 100%, and right before I close my eyes, I'll unplug and see how it does. I'm curious as well.

Typically 0.5% per hour or less with lots of bloatware disabled (200+ apps). Couple gmail accounts, s note and scrapbook syncing.
Sent from my SM-N920T using Tapatalk

So I unplugged my phone when it reached 100% and got a notification saying the battery is fully charged and unplugged it at 10:40 pm. About 7 hrs and 20 mins later, my phone dropped to 93%. That's about 1% every hour. My phone is stock, no root (yet) with 17 apps disabled. WiFi is on, brightness was on the lowest setting and all accounts on my phone sync through the the night.
I've never done this with one of my previous phones, so I can't really give you my opinion on how I feel about this. Let me know what you guys think. I'll try disabling some more apps and doing the test again and see if that has some effect.

leo9891 said:
So I unplugged my phone when it reached 100% and got a notification saying the battery is fully charged and unplugged it at 10:40 pm. About 7 hrs and 20 mins later, my phone dropped to 93%. That's about 1% every hour. My phone is stock, no root (yet) with 17 apps disabled. WiFi is on, brightness was on the lowest setting and all accounts on my phone sync through the the night.
I've never done this with one of my previous phones, so I can't really give you my opinion on how I feel about this. Let me know what you guys think. I'll try disabling some more apps and doing the test again and see if that has some effect.
Click to expand...
Click to collapse
if you are rooted and have xposed. download Mobileactiveradiofix...bassically some apps you are using that utilize mobile data, after you turn off the screen it still using data....thats the gist of it.

Drain about 1% per hour.
Tried 3G all the way. Not much savings compared to LTE all day

I have the 920CD Dual sim. Horrible Battery standby. I lose 2 - 3% per hour on android system usage while i'm sleeping.
I tried disabling apps etc but to no avail!

During night my phone consumes up to 30% of battery, my stand-by is 16hrs at max!!!. I love my phone but there is an obvious problem about it.
On the other side my wife has the same phone and her battery withstands up to two(2!) days.
(Hers is running on stock firmware with simple tuning, mine is also on stock but i checked and disabled almost everything)
My phone is ; N920CXXU1AOH2 hers is N920CXXU1AOGF. Is there a way i clone her phone firmware and copy into mine?

I think you guys above may have Wakelock. Mine started up recently and it drains up to 15% of my battery from just a bit under 2 hours. Before that it would be fine. Unplugged all night (8hours) and lost 2-3% battery

I couldn't believe this rating was so low. This is the best at standby. Absolutely phenomenal. It's literally around 1-2% an hour. I can get home after 11hrs and still have 70% left. Usually it's around 50% with 2 hrs of screen on time / use.

Got an update yesterday. ..it includes the doze feature from marshmallow. ..vastly improved the standby time
ścribbled from my Note 5

I wouldn't call 1-2% per hour idle time phenomenal, It's average at best.
0.5% per hour (or 2 hours per 1%) I'd say that's very good.
3 hours per 1%, that's excellent. This happens to be my Xperia Z3 Compact's idle time when I sleep.
Phenomenal? It would need to be 4 hours per 1% idle time.
My Note 5 is doing 1% per hour currently.

My iPhone 6s Plus can go over 7 hours standby and still be at 100%. One of my biggest peeves with Android was battery drain. Just switched with the release of the 6s and am very happy. Had the Note 5 and still have the Nexus 6. The doze feature still can't even come close. And it only works if the phone is shelved. Not in the pocket. Not good enough for me.

Please everyone who has the drain, write samsung feedback on their support website. It is most of the time caused by the wlan_rx_wake, wlan_cntrl_wake and wlan_wake wakelocks. I am trying to find a fix but so far nothing has helped me except turning off wifi.

Octa_core said:
It is most of the time caused by the wlan_rx_wake, wlan_cntrl_wake and wlan_wake wakelocks. I am trying to find a fix but so far nothing has helped me except turning off wifi.
Click to expand...
Click to collapse
Really? I can live without WiFi most of the time if it helps my battery.
I was getting great battery life, I stopped using the Note 5 for about 3 weeks while I reviewed some other devices and when I return I'm loosing 5% an hour, doing nothing. I've done a factory reset once, slightly better, but still not great. Might try another tomorrow.
Let us know if you find a fix.

---------- Post added at 07:41 PM ---------- Previous post was at 07:38 PM ----------
[/COLOR]
Octa_core said:
Please everyone who has the drain, write samsung feedback on their support website. It is most of the time caused by the wlan_rx_wake, wlan_cntrl_wake and wlan_wake wakelocks. I am trying to find a fix but so far nothing has helped me except turning off wifi.
Click to expand...
Click to collapse
just like you .. I come from a s6 and did not have this problem, hopefully be resolved soon

During night, I switch off mobile network and wifi, but both SIM still active for phonecalls. Drain this way is around 0.5% per hour or 3%-4% per night - depending on how long I sleep

Frankly, I only used the phone with the latest update so, I have no idea about battery performance before it. Anyways, I'm getting great overnight battery performance, with 3% dropping in 7-8 hours (mobile data, wifi and bluetooth off).

all data and BT off and you're dropping 3%? Turn your phone off and you'll drop 0%

Mediaserver, system and kernel kill my standby. Is it worth factory reset or should I hang out for marshmallow?

Standby drain

When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the Samsung Galaxy Tab S6's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!

Tab S6 High Idle Battery Drain Overnight
lose 40% in 12 hours without use, no installed applications. wifi 4g disconnected after one day the tablet dies

Check your battery settings.

XDA_RealLifeReview said:
When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the Samsung Galaxy Tab S6's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!
Click to expand...
Click to collapse
My s6 wifi version has very good battery life compared to the s3 I upgraded from. Imo

I'm getting horrible standby time dropped 60% in 14 hours with almost no use. Where are those setting mine look different.
Found the settings, but mine are all set right. Doing a full charge now and gonna see if I can find anything using battery, but I suspect the tablet is never going into deep sleep

I found that there's a bug when charging with the keyboard case closed around the tablet.
If the case was closed and I put the tablet on the charger then take it off the charger. I would find it had lost 40% the next morning.
If I open the case & close the case after removing the charger I would only loose 1~2%.
What I'm thinking is that "Fast Charging ...%" that is visible during charging (even with the case closed) sets the screen to active.
However, it seems that removing the charger with the case closed, the tablet isn't picking up that the case is closed and keeps the screen somehow active.
(That's why, opening & closing the case resets that state and the tablet goes into proper idle/sleep mode again with the screen state in off mode.)
Tested it around 3 times now and each time it seems to be this exact issue.

Mine dropped 2% of battery per hour during standby with no apps run in the background.
---------- Post added at 11:10 PM ---------- Previous post was at 11:06 PM ----------
t_007_v2 said:
My s6 wifi version has very good battery life compared to the s3 I upgraded from. Imo
Click to expand...
Click to collapse
Has this setting since day one and it doesn't helps, I also did an exchanged at Best Buy and still have the same issue.

t_007_v2 said:
My s6 wifi version has very good battery life compared to the s3 I upgraded from. Imo
Click to expand...
Click to collapse
+1 on this. I had an S3 and unplugged overnight I'd drop almost 50%. As a test I barely used the tablet for 4 days but didn't charge it and 4 days later I still had a good 30% charge left.

howie411 said:
+1 on this. I had an S3 and unplugged overnight I'd drop almost 50%. As a test I barely used the tablet for 4 days but didn't charge it and 4 days later I still had a good 30% charge left.
Click to expand...
Click to collapse
That's horrible battery life. I have barely touched my s4 since I got this and its dropped 20 percent. This tablet dropped 20 percent sitting for 8 hours today. Looking at battery usage it only shows 1% device idle and nothing else. I'm going to return and swap for different tablet. Hopefully I just got a bad battery, but it seems prevelent.

Ok, so that answers that. I returned my tab s6 and exchanged for new one and got keyboard case. The new one has been sitting all day and is still at 100 % with slight use. The old one you could watch the battery drop and on standby it would lose 20 % overnight. I have all the same apps installed and all the same apps disabled. Something was wrong with that tab.

Interesting followup is since I got my new tab it started showing standby drain again. So I've been experimenting and at first I thought it was leaving tablet in dex mode, but now I think it's related to multi-lock and using the "don't pause" apps option. I use this for videos and games to stay running while I check email of forums in multiwindow. I think when I have this one and I have apps running and close the lid or press the power these apps prevent sleeping. I'm still experimenting and hopefully will know more soon.

GiantAxe said:
I found that there's a bug when charging with the keyboard case closed around the tablet.
If the case was closed and I put the tablet on the charger then take it off the charger. I would find it had lost 40% the next morning.
If I open the case & close the case after removing the charger I would only loose 1~2%.
What I'm thinking is that "Fast Charging ...%" that is visible during charging (even with the case closed) sets the screen to active.
However, it seems that removing the charger with the case closed, the tablet isn't picking up that the case is closed and keeps the screen somehow active.
(That's why, opening & closing the case resets that state and the tablet goes into proper idle/sleep mode again with the screen state in off mode.)
Tested it around 3 times now and each time it seems to be this exact issue.
Click to expand...
Click to collapse
Thank you, I will definately give this a try tonight. Lost 40% tonight in standby. The battery drain is driving me crazy
Skickat från min SM-T865 via Tapatalk

yeah it's kind of random, to me it definitely seem related to leaving apps open when you turn off the tablet. I've seen the drain with and without the keyboard attached, in and out of dex mode. Some morning I lose 3% overnight, some mornings it's more like 20%

GiantAxe said:
I found that there's a bug when charging with the keyboard case closed around the tablet.
If the case was closed and I put the tablet on the charger then take it off the charger. I would find it had lost 40% the next morning.
If I open the case & close the case after removing the charger I would only loose 1~2%.
What I'm thinking is that "Fast Charging ...%" that is visible during charging (even with the case closed) sets the screen to active.
However, it seems that removing the charger with the case closed, the tablet isn't picking up that the case is closed and keeps the screen somehow active.
(That's why, opening & closing the case resets that state and the tablet goes into proper idle/sleep mode again with the screen state in off mode.)
Tested it around 3 times now and each time it seems to be this exact issue.
Click to expand...
Click to collapse
Going to try this as well. Mine has been dropping up to 60 percent overnight which is absolutely ridiculous. Even with airplane mode on and bloatware disabled.

I am having the same issues with my Tab S6 Lte.
Huge drain during the night. Battery settings correct with all battery savings on. Most often I even enable flight mode to save power.
When checking what have caused the battery drain, and I put all those percentages together I don't get a number that is nowhere near the actual battery drain.
So something is clearly wrong and some process is draining the battery that doesn't show up in the list of apps battery usage.

Thought it was just me!
This is very interesting.
My wife got hers about 2 weeks before mine arrived.
She's an English teacher and uses it anything from 8 to ten hours a day. High brightness, keyboard case attached.
She gets around 3 days usage before she needs to charge. (Primarily uses Dex)
Set mine up, and I'm charging every night! Stand by drain is shocking compared to my S10+
I'm going to wipe it and slowly check battery differences with any change I make (app installed, setting changed, environment changed)
See if I can isolate what's causing it.

It used to be pretty decent here but lately I've been having some insane battery drain issues. It started when I switched to the book cover, so I'd say GiantAxe is right on the mark, shame on you samsung..

Idle drain is all good here, nothing out of the ordinary.

Idle battery drain is really getting on my nerves!
Initially the I didn't really notice the overnight battery drain, as I'm never used to looking at the battery of my devices every morning. But one day, a drop of 50% did strike me and since then I'm just developing kinda OCD over this issue . It's pretty random too, 2 to 5% an hour. I've tried restricting background use for most of the apps and it still persists. Nowadays, its like I pick the tablet only to check the battery percentage and nothing else! Very frustrating.
I'll keep experimenting like all others and post if I find a culprit.
I hope we'll be able to close this thread with a solution!

J∆Y said:
Initially the I didn't really notice the overnight battery drain, as I'm never used to looking at the battery of my devices every morning. But one day, a drop of 50% did strike me and since then I'm just developing kinda OCD over this issue . It's pretty random too, 2 to 5% an hour. I've tried restricting background use for most of the apps and it still persists. Nowadays, its like I pick the tablet only to check the battery percentage and nothing else! Very frustrating.
I'll keep experimenting like all others and post if I find a culprit.
I hope we'll be able to close this thread with a solution!
Click to expand...
Click to collapse
Same here... Was great for the first 3 weeks, even with book cover. Then since Wednesday last week it went crazy and battery dies, no use at all, after two days stored in my backpack during the weekend. I hope this is a software issue that can be fixed via an OTA.

Standby drain

When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the OnePlus Nord's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!

nord 12gb
my nord 12gb variant drops around 25% at night during my sleep. very irritating 1st time i am using a mobile around 30000 thousand and feeling very disappointment choosing one+ Nord. company advertise battery for the whole day , but in actual battery sucks and i have to recharge my device 2 times . **** One+

Same issue. Overnight it drops between 18% and 23% depending on my sleepcycle. I blame the Do Not Disturb mode, Doze mode or something is just plain wrong with my apparatus.

No auch problems here, I'm losing between 3 and 4 percent in 8 hours over night which is totally ok for me.

I don't have that problem, the battery lasts a day and a half, with normal use, bt for smartwach always connected, bt by car, 2-3 hours of online radio, surfing the internet, whatsapp, calls
And at night I do not have a consumption beyond 3-4%, it seems normal to me.
Do you use original charger and cable?

Yes, used original charger and adapter.
How much SoT do you have?
8Gb or 12Gb version?
My SoT is now 3h15 and I al on 11%...
Normal usage, wifi and mobile data on. BT only when needed, no GPS, no intensive graphical games,...

Mine ist dropping max 2-3% overnight. I think that's okay. But more than 10% is weird, maybe some Apps or Services waking Up the Phone alot? Im running Stock oos no root and newest version
---------- Post added at 02:14 PM ---------- Previous post was at 02:11 PM ----------
Michiel0912 said:
Yes, used original charger and adapter.
How much SoT do you have?
8Gb or 12Gb version?
My SoT is now 3h15 and I al on 11%...
Normal usage, wifi and mobile data on. BT only when needed, no GPS, no intensive graphical games,...
Click to expand...
Click to collapse
8GB Version, normal sot 5-6h with a little gaming.
With a Lot gaming 4-5.
Without gaming (my max sot) 8h 1min with 11% left(Bluetooth speaker all day, mostly using Chrome and Instagram , some Video editing too) (some more Details and Screenshots Here: https://forum.xda-developers.com/oneplus-nord/review/screen-time-t4127271/post83700021)
(dark mode on, 90hz refresh rate, brightness at 60% with autobrightness on, nfc Off, autosync on for all accounts)
At the Moment i am at 95% with 40min sot

Thank for the reply. I noticed the Camera app was eating half of my battery, I disabled Face Unlock but still went from 29% to 11¨% overnight and nothing seems to be out of the ordinary. I wiped the cache such as suggested on the Oneplus forum and did a full charge. We'll see tonight how that goes.

Michiel0912 said:
Thank for the reply. I noticed the Camera app was eating half of my battery, I disabled Face Unlock but still went from 29% to 11¨% overnight and nothing seems to be out of the ordinary. I wiped the cache such as suggested on the Oneplus forum and did a full charge. We'll see tonight how that goes.
Click to expand...
Click to collapse
That seems to do it. 3 days, 1,5h talk time, 4h40 SoT, etc... and 6% left.
Now I noticed WiFi (5Ghz) drops connecting on longer standby times, that didn't happen before.
I don't get this machine.

Michiel0912 said:
That seems to do it. 3 days, 1,5h talk time, 4h40 SoT, etc... and 6% left.
Now I noticed WiFi (5Ghz) drops connecting on longer standby times, that didn't happen before.
I don't get this machine.
Click to expand...
Click to collapse
Ok, got it. It's a setting to disconnect Wi-Fi during long standby times.
Settings - Battery - Battery optimalization - Advanced Optimalization (3 dots top right corner) - Sleep standby-optimalization

All of a sudden my WhatsApp eats 21% of the total power consumption, anybody is experiencing the same? Didn't change the optimization settings for any app. for the first month since I had this phone everything was at around 1-2%. Now Whatsapp is using way more power and didn't see any news that this affects all models

Same issue here on my brand new Nord. Plane mode and battery saver enabled and still ~20% battery drain over the night

lexusbest said:
Same issue here on my brand new Nord. Plane mode and battery saver enabled and still ~20% battery drain over the night
Click to expand...
Click to collapse
Did you clear cache already?

Michiel0912 said:
Did you clear cache already?
Click to expand...
Click to collapse
Gonna see tonight

lexusbest said:
Gonna see tonight
Click to expand...
Click to collapse
I tried the cache clear and it helps a bit but whatsapp is still the biggest battery drainer for me currently.

Cruzy12100 said:
I tried the cache clear and it helps a bit but whatsapp is still the biggest battery drainer for me currently.
Click to expand...
Click to collapse
Yep, cache clear did not work for me at all. I uninstalled some crappy apps like FB and YT Music as well as many others ported from my older device. That plus the lastest Always On Edge updates helped a lot. I went from 20% to 8-10% standy drain. Whatsapp still consumes a lot more than any other app, even if i don't use it

3 month of use : I've noticed that battery is draining a lot (lot)!when I let auto rotate & bluetooth activated. I think I will fix it with some Tasker profile so I will not miss to disable it anymore.

Screen on time

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 Xiaomi Mi 10 Ultra before depleting the battery.
Then, drop a comment if you have anything to add!

10+ hours SoT (12 or so full battery) on 60hz mostly browsing chrome, average brightness. I don't do 120hz, period, only reason I'd use it is if a phone didn't have any lower option. I think 120hz looks weird so there's no reason for me personally to waste the battery for it.
Not sure how 120hz would work out
Edit: now getting 12-14 hours SoT 100-0 after having the phone for over a week

AerationCheese said:
10+ hours SoT (12 or so full battery) on 60hz mostly browsing chrome, average brightness. I don't do 120hz, period, only reason I'd use it is if a phone didn't have any lower option. I think 120hz looks weird so there's no reason for me personally to waste the battery for it.
Not sure how 120hz would work out
Edit: now getting 12-14 hours SoT 100-0 after having the phone for over a week
Click to expand...
Click to collapse
Hi there. May I ask how you are getting 10+ hours of SoT? Were there some settings you adjusted to achieve such phenomenal SoT? I'm losing a lot of battery even when I don't use it.
I use 60Hz refresh rate as well, browse chrome, and low brightness as well. Heck, I don't have any social media apps refreshing in the background, only mail and messaging apps occasionally giving me notifications.
Thanks.

golddragon97 said:
Hi there. May I ask how you are getting 10+ hours of SoT? Were there some settings you adjusted to achieve such phenomenal SoT? I'm losing a lot of battery even when I don't use it.
I use 60Hz refresh rate as well, browse chrome, and low brightness as well. Heck, I don't have any social media apps refreshing in the background, only mail and messaging apps occasionally giving me notifications.
Thanks.
Click to expand...
Click to collapse
Well I use 60hz and battery saver is on pretty much all the time. (don't use ultra battery saver though, it basically just breaks your phone and messes up settings)
Don't turn the brightness up higher than you need it. Use wifi whenever possible. Turn location/Bluetooth off when not in use.
Not sure of anything else that helps.

AerationCheese said:
Well I use 60hz and battery saver is on pretty much all the time. (don't use ultra battery saver though, it basically just breaks your phone and messes up settings)
Don't turn the brightness up higher than you need it. Use wifi whenever possible. Turn location/Bluetooth off when not in use.
Not sure of anything else that helps.
Click to expand...
Click to collapse
Thanks for the tips.
I used to have battery saver on, but it seems like it bogs down notifications, or maybe it was because I didn't set permissions for every app. I have discussed this in another thread, but anyway, I should use power saver again now that I have all the permissions and data settings out of the way.
Brightness is always as low as possible. I work in an office or at home, and with the virus still hanging around, I haven't been outside for recreation using the camera/GPS, etc.
At least I know you didn't have to work something complicated out. Thanks again.
Wait, your SoT is in one day, right?

golddragon97 said:
Thanks for the tips.
I used to have battery saver on, but it seems like it bogs down notifications, or maybe it was because I didn't set permissions for every app. I have discussed this in another thread, but anyway, I should use power saver again now that I have all the permissions and data settings out of the way.
Brightness is always as low as possible. I work in an office or at home, and with the virus still hanging around, I haven't been outside for recreation using the camera/GPS, etc.
At least I know you didn't have to work something complicated out. Thanks again.
Wait, your SoT is in one day, right?
Click to expand...
Click to collapse
Yeah I recharge it once a day. I use my phone a LOT. Idle drain when I sleep is very low. 2-3% overnight

AerationCheese said:
Yeah I recharge it once a day. I use my phone a LOT. Idle drain when I sleep is very low. 2-3% overnight
Click to expand...
Click to collapse
Oh ok. I'm a bit different because I use my phone maybe about three hours tops everyday.
Interesting because I observed my phone for the past two nights and it's been draining about 6% overnight, around 6 hours sleep time. This is the biggest battery I've ever had on a phone, so losing 6% makes me wonder if I haven't set something up correctly.

golddragon97 said:
Oh ok. I'm a bit different because I use my phone maybe about three hours tops everyday.
Interesting because I observed my phone for the past two nights and it's been draining about 6% overnight, around 6 hours sleep time. This is the biggest battery I've ever had on a phone, so losing 6% makes me wonder if I haven't set something up correctly.
Click to expand...
Click to collapse
It might just be the different apps we use. Different apps will use more power during different use scenarios, 6% overnight isn't TOO bad but it could be lower. Do you have the option on that turns off power draining features when it detects you're asleep? It's somewhere deep in battery saver settings.

AerationCheese said:
It might just be the different apps we use. Different apps will use more power during different use scenarios, 6% overnight isn't TOO bad but it could be lower. Do you have the option on that turns off power draining features when it detects you're asleep? It's somewhere deep in battery saver settings.
Click to expand...
Click to collapse
Yeah, different apps for sure. I don't use anything like Instagram/Snapchat, or whatever people use nowadays. My Mate 10 Pro I've upgraded from stays at the same battery level overnight as when it was taken off the charger when new. Two/three years down the line with some battery degradation, it only drains 2-3% every night, so that's why I was so confused.
I think I know what you're talking about. The sleep detection feature doesn't make a difference. The only difference it has is it doesn't refresh notifications while draining the same amount of battery. I think I might need to dig into the settings a bit more or just take it. The drain isn't all that bad, but may take some time to get used to. I should probably try and do a factory reset or something.

Have you disabled and uninstalled all of the unnecessary junk apps using that Xiaomi adb tool?

I'm using Mi 10 Ultra @ 120Hz and getting 7 hrs SoT + 12 hrs Standby and left with 1%. 6hrs SoT + 10:51 Standby @ 20% left. Heavy use of Facebook and Messenger. Light use of Chrome, Youtube, etc. Google Photos backup turned on. Overnight drain is usually around 5% for me.

Active
5 hrs 41 mins
Standby
4 hrs 12 mins
With 18% left
Does this look any good?
I'm not blown away by the battery life but I guess it's better than what my s20 or even the note 20 ultra was

60 hz vs 120 hz.
Only WiFi, auto brightness, social media apps, few pictures.
Generally it's a decent battery for 120 hz, csn make a hole day without worries.

Battery saver seems to give me an extra 20-30% SoT without noticeably impacting my experience beyond the fact that it disables Gmail sync. 8-10 hours without it, 10-14 with.

Do you guys debloat stuff?
i have no luck with Xiaomi and always have poor battery.

Greenify helps. I don't need to charge every day as my phone turns off at midnight and on at 7am.
It's two batteries not one and they are coated in graphene so I expect longevity!
Early signs are good but when this is rooted with lspeed and Greenify it'll be superb.
Greenify does sleep system apps without root though
---------- Post added at 03:06 PM ---------- Previous post was at 03:04 PM ----------
sirTAVARES said:
Do you guys debloat stuff?
i have no luck with Xiaomi and always have poor battery.
Click to expand...
Click to collapse
I've come from a Mi9 which when rooted with a custom kernel and ROM lasted a couple days of moderate use.
Xiaomi bloat is annoying but the hardware is brilliant. You really should explore unlocking that true potential if you don't...

They're not really coated in graphene, they use a graphene electrode. The benefits of graphene electrodes aren't super clear beyond the fact that they're 1000x more conductive than the typical electrode material used in lithium ion batteries. That means less heat when charging and discharging but it's hard to say what else. Supposedly 800+ cycles for minor capacity degradation to set in, instead of the 300-500 for typical batteries, but that's a claim made by xiaomi not necessarily one that's been scientifically proven on this battery or other phones yet. I'm sure it's better than normal batteries but how much better and in what ways isn't clear yet.

ToneLa said:
Greenify helps. I don't need to charge every day as my phone turns off at midnight and on at 7am.
It's two batteries not one and they are coated in graphene so I expect longevity!
Early signs are good but when this is rooted with lspeed and Greenify it'll be superb.
Greenify does sleep system apps without root though
---------- Post added at 03:06 PM ---------- Previous post was at 03:04 PM ----------
I've come from a Mi9 which when rooted with a custom kernel and ROM lasted a couple days of moderate use.
Xiaomi bloat is annoying but the hardware is brilliant. You really should explore unlocking that true potential if you don't...
Click to expand...
Click to collapse
im aware of it

sirTAVARES said:
im aware of it
Click to expand...
Click to collapse
So what's your next step?

My battery life has gotten much worse lately and I'm not sure why exactly. Down to 6-7 hours SoT from 10+ easily before. It happened around the same time I installed accubattery, but I uninstalled it a few hours later so I doubt it's that unless it somehow changed a system setting.

Screen on time

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