[Discussion] Battery life thread

SponTen

Senior Member
Feb 2, 2014
56
12
38
S9 Exynos here.

Second full day (after a half day when I got it) and it's been pretty horrible. I expected it to be average or not great for the first couple days, but this is nuts.

I've got everything on - location, sync, AOD, Bixby, etc - and am losing about 5% per hour with the screen off. Ending the day on 15% with only an hour or two of SOT.

Will be keeping a spreadsheet log of it, including what services are on and how I've used it, so will report back. Hope it improves naturally with everything on though. Reception is also surprisingly average; in the bathroom at work my Pixel 1 had decent enough reception to load videos, but my S9 seems to struggle to even load images. Pixel 1 had 3G in an underground pub, but my S9 couldn't get any data at all.
 
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Soufiansky

Senior Member
Dec 12, 2014
4,050
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S9 Exynos here.

Second full day (after a half day when I got it) and it's been pretty horrible. I expected it to be average or not great for the first couple days, but this is nuts.

I've got everything on - location, sync, AOD, Bixby, etc - and am losing about 5% per hour with the screen off. Ending the day on 15% with only an hour or two of SOT.

Will be keeping a spreadsheet log of it, including what services are on and how I've used it, so will report back. Hope it improves naturally with everything on though. Reception is also surprisingly average; in the bathroom at work my Pixel 1 had decent enough reception to load videos, but my S9 seems to struggle to even load images. Pixel 1 had 3G in an underground pub, but my S9 couldn't get any data at all.
With screenshots it would be better next time :good: , thanks for your feedback.
 

Soufiansky

Senior Member
Dec 12, 2014
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Happy to provide them, I just never bother taking them haha. Why better though? I log my battery details in a spreadsheet, so wouldn't this be the same as a screenshot?
It's just better because most people do like that since you just see the screens instead of reading everything, but as you like man :victory:
 

sl4y3r88

Senior Member
Mar 8, 2012
136
6
0
I don't know whether I've conditioned the battery or whether it's the intelligent scan that i turned off (and restarted phone) but i am getting 5hrs sot 36hrs uptime. AOD off. Resolution is fhd+. Exynos s9.
 

Pitbull09

Member
Aug 20, 2007
11
0
0
I don't know whether I've conditioned the battery or whether it's the intelligent scan that i turned off (and restarted phone) but i am getting 5hrs sot 36hrs uptime. AOD off. Resolution is fhd+. Exynos s9.
Sure i have also 5h SOT (with 2 h playing a game currently) but turning off things shouldn't be the solution to get SOT times still worse than the s8.
The bad thing is most reviews are aware of the bad battery Times but still gave a high rating. So samsung will not fix this as fast as we want as the first reviews are rewarding them.
This should be a high priority issue.
I am sure this idiots will first concentrate their fixes to have higher benchmarks results
 
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iamnotkurtcobain

Senior Member
Oct 30, 2010
12,517
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Vienna
Sure i have also 5h SOT (with 2 h playing a game currently) but turning off things shouldn't be the solution to still get SOT times worse than the s8.
The bad thing is most reviews are aware of the bad battery Times but still gave a high rating. So samsung will not fix this as fast as we want as the first reviews are rewarding them.
This should be a high priority issue.
I am sure this idiots will first concentrate their fixes to have higher benchmarks results
Do you think it's fixable by Samsung? Maybe the new Exynos is just a battery sucker.
 

aybarchu

Senior Member
Jan 20, 2014
126
118
0
Here i have g960FD, battery REALLY SUCKS. My s8 does a LOT better than my S9, Idk if installing another firmware will solve the issue, i have germany firmware rn but it sucks a lot
 

metal450

Senior Member
Jan 1, 2008
140
12
0
Here i have g960FD, battery REALLY SUCKS. My s8 does a LOT better than my S9, Idk if installing another firmware will solve the issue, i have germany firmware rn but it sucks a lot
How long have you had it? I wonder if the battery would improve after it has a chance to settle (i.e. after a number of charge/discharge cycles)
 

metal450

Senior Member
Jan 1, 2008
140
12
0
5 days. The problem is I have a Pixel 2 and a brand new S8 and both of them are doing great...
Are both the S8 and S9 Exynos?

I agree that it shouldn't be so much worse from the get-go...however, I personally care far more about how it behaves long term. If the S9 does eventually stabilize to behaving similar to the S8, that'd be fine with me. *If*...

(I'm currently on the fence between Exynos S8 and Exynos S9...)
 

engineer000

Senior Member
Jul 18, 2015
485
44
0
i have poor battery life than other device. i should have not moved to s9 from a huawei midrange device. having premium phone but you still need to think on saving battery doesn't make sense. why pay for a premium phone if you will need to turn off features and sleep the apps just to save juice while outside. this is not fair.
 
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joyj112

Senior Member
Mar 6, 2012
182
82
0
Beaverton
Standby time on my phone has been amazing. Actually from 100% -90%, my battery drains like crazy, but after that it steadies out. I forgot to charge my phone last night with 72%, woke up with 70% and now still going strong. I think I can last another day with this phone. Yeah yeah I only have like one hour and 30min of SOT as of right now, but when I use my.phone through heavy usage I usually can get 5 hrs or even 5hrs and a half. Here's my small tip on how to save battery life:

1. Power saving mode on: CPU limiter off / decrease brightness 10% /AOD off / FHD
2. Battery saving on location settings
3. Make sure data is off when using wifi (developer setting)
4. Delete or disable bloatware
5. Use BetterBatteryStats to check and make sure you have no wakelocks (had some before and with a reboot it fixed all my problems)
6. Make sure your phone settles in. Give it at least a week
7. Go to the battery setting and click on certain apps and disable background activity so that it doesn't trigger any warlock (this will disable notification so beware)
8. For people who use Facebook,delete it. Go to chrome (or brave, which is better) and sign into to your Facebook account and add the website to your homescreen. Honestly it's a lot smoother and you will still receive notifications.

And yeah that's about it for my battery saving tips. Battery will vary depending on your usage so dont depend too much on this idea.
 

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