Android Authority review of N9 - Nexus 9 General

https://www.youtube.com/watch?v=97dD665G6rQ
The battery life seems pretty horrible. 6700mah max 6hrs SOT ?

You created a new thread for this?

Good review. Be aware that most reviewers didn't get the new current firmware until Sunday so he may have based his battery results on the days prior. Supposedly, the firmware improved on battery life. The review units sent out last week to the media had older firmware.

Related

How is your battery after 1-2 years?

Hi all,
i own my OPO since january 2015 and started noticing that the battery doesn t last like it used to be. i now usually get 3 hours of screen-on and it seems that the battery even takes longer to charge. How is your opo battery doing after more than 1 year of service? i'm asking because i want to know if it's a software problem that drains the battery (latest cm13 nightly) or really the battery got degraded
almost one and a half year old and the battery is still good.
after 2yrs, my batter gone down from 10hrs to 5hrs
What karthics4 said!Need a replacement soon!
Sent from my A0001 using Tapatalk
if it got really degraded, change it.
Before replacing it, what should i check to be 100% sure that there is no battery drain on the software side?
With the right ROM and kernel I have much better battery life than two years before.
Oneplus One
I'm having less battery time than when it was new.
I have 3h SOT max currently.
Me 2. Currently looking for a good battery replacement...
After 2 years the battery is still extremely good.
Still lasting a day with ressurection remix and governor set to smartmax with lte,only wifi if i charge it to full it will consume only 35 to 40%.
I've had my OPO for over a year and battery life is excellent on Omnirom Nightlies (screenshots attached)
I get about 5 or less hrs SOT on CM13 Nightlies but with a custom kernel like Boeffla I can UC CPU and GPU and get about 6 hrs.
When I had my phone new on 4.4.4 KK I used to get 6 hrs SOT on COS with no tweaks whatsoever over 2 or more days.
Of course it will less, but I'm still getting 4-5 sot. I bought mine since the invite was sold like 40 dollars lol.
remmember that lithium batteries degrade when heated... and they get hot (40 C).
another thing to remmember is that android 4.4.4 that the OPO was delivered to us lasted more that MM and Lollipop...
after two years my battery is good, not bad not awesome like it new, but good.
I'm using ressurection remix with undervolt -130 MV
And I still can go to university and home with 50% battery.
The problem is you'll not find any ORIGINAL replacement battery for that phone. Its all label-faked batteries which will not last as long as a 2 years old original one...
I tried already some of them..
in GPS, choose the "DEVICE ONLY" mode and see that the battery will last more. CM bug...
Hardly any of the replies in this thread are useful. Most of you started out with KK and then went to LP and MM, which have much worse battery life than kitkat, so you don't know how much of the degradation is from battery wear. Flivercod's new AICP MM rom is the only one I have seen since kitkat that has a similar battery usage profile to kitkat - the screen uses at least 4 times more power than system, play services, OS, etc, so to me only someone who was running this rom could make a valid comparison to how their battery life was now vs how it was new. For me, I have dropped about an hour of SOT, from 6 to 5 due to battery wear, which is about what you would expect. Due to this, I would like to replace my battery.
It peeves me to no end, like Guido83 said,. that you cannot find an OEM battery for the OPO. They all appear to be counterfeit crap from reading the reviews. Oneplus does not answer emails asking how to purchase an OEM battery for the OPO. So, I guess you are SOL when your battery gets wonky or just old. With phones now being fast enough and good enough to be used for more than 2 years, except for the frigging battery, I am waiting until some manufacturer decides to make one with an easily replaceable battery (and that has good support on XDA) before I purchase another. Until then it's the OPO and my backup Note 4 (which I rarely use since it has awful GPS despite having a replaceable battery and SD card.)
15mths in and my battery life has improved dramatically just by switching to RR. If you're rooted then it's worth trying out another Rom.
Third time lucky for me. Oxygen was by far the worst for me. I couldnt even get to 4pm without a charge up. Since installing RR I'm finding battery life has more than doubled.
HTH
One.five year old with max Sot of 4 hrs

Thinking about rooting

I have always rooted my phones but so far I haven't rooted my S7 Edge yet. However, the battery life sucks but after reading some comments on here it seems that people who root are getting no better or worse battery life. I was just looking for some feedback from people that have rooted to see what the majority response is. I've been contemplating doing this now for several days.
Thanks.
I've been contemplating about trying root again too, and that's after being on the U firmware. I'm now suffering battery life by only getting 2 hours of SOT by 50%, unlike at the beginning I could get up to 3 hours by 50%.
When I was on root though, that's how bad I suffered, only getting 2 hours of SOT by 50%. My Xperia Z3v is abandoned on support, but could still achieve better battery life being only on Lollipop. C'mon Samsung...
steelersmb said:
I have always rooted my phones but so far I haven't rooted my S7 Edge yet. However, the battery life sucks but after reading some comments on here it seems that people who root are getting no better or worse battery life. I was just looking for some feedback from people that have rooted to see what the majority response is. I've been contemplating doing this now for several days.
Thanks.
Click to expand...
Click to collapse
When i rooted my battery life dropped from 2 days to under a day before dying.
I am barely even getting that. I am at 59% right now with 37 minutes SOT and off the battery for 8 hours and 26 minutes. When I check app usage, the only thing that is high is the Android System at 39% and the Kernel at 10.7%. I can't figure out what kills my battery. I am on WiFi most of the time while at work or at home. BT is off as well.
On root you are using the engineering bootloader so the battery life is bad. You are better off using stock U. It runs smooth and battery life is not bad, plus you can get OTA updates.
U is a great FW so far. Battery life for me, with about 4 hours of SOT got me to about 50% at 530pm and I was off the charger at 7am.

battery life

Hey folks,
I just want to say I an extremely surprised of the battery life of the phone, before the update I had great battery life, after the update I have amazing battery life... Even before the update I have no clue why journalists and tech sites and YouTubers bashed the battery life of this phone, it's more than good...
How is your battery life compared to your usage? Before and after the update?
Easy 5-6 hours SOT on dual SIM with LTE and some camera snaps here and there.
On oreo it was about 4-5 hours max

Latest Two Updates Battery Life Worse

Hi everyone does anyone have worse battery life in latest two updates i means second october update and latest november security patch update...my battery is drain much more than before...
I think so.
I think ASIG is still best version ever made for this device...
Good performance and good battery
Just hoping Android 10 will become better (not for now on Betas though)
I have noticed the same. Exynos version and now again with 2.5 hrs sot. Again need wait other update to improve
Sent from my SM-G975F using Tapatalk
miguelang611 said:
I think so.
I think ASIG is still best version ever made for this device...
Good performance and good battery
Just hoping Android 10 will become better (not for now on Betas though)
Click to expand...
Click to collapse
I agree ASIG is best one i have there good battery and performance...hole to android 10 be better
Yeah I've noticed this too
I have noticed this battery drain too. What I did, I did a factory reset and installed the latest firmware via odin. Since then, I am getting a smoother as-normal battery life with stable idle drain and 7 hours of screen time approximately.
Me 2 experience battery drain on the latest firmware. Maybe its the latest magisk update. Idk
I had exactly the same issue...I let the battery drop to 0 where the phone switched off. I charged it with normal charging speed till full...repeated the process and the 2nd charge on quick and battery life back to normal

Sot and performance

I wish we can share our sot and performance (which rom )to be easier way if we looking for good backup battery and still good performance
CrDroid is excellent in terms of both battery and performance. With a 9 month old official replacement battery I was getting 10+hours SoT over 2-2.5 days usage. I haven't tried A13 builds yet.

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