yashsingh1/xdaforums huggingface dataset:
[HTC One A9] theNdroid:
That battery will definitely be sufficient for the "average user" (by average I mean 9 to 5 day job with 1 hr lunch break and a 1 hr commute from home to work) that listens to music or watches movies on their way to work, uses their phone on their 30 minute or hour break, and watches movies/listens to music on their way home. Your battery stats are pretty good for 24 hours. The "average person" is out the house for about 12-14 hours a day and have time to plug unto the wall for atleast 15 minutes. If you can charge your phone for just 15-20 minutes while you eat on break (like most smartphone owners probably do already) with quick charge 2.0 (and soon to be 3.0) you'll have more than enough battery to last the day, and some, until you get home to charge for the night.

People who are complaining about the battery life must use android wear devices, wireless headsets, and keep your bluetooth on all day , and/or, are business men who are always traveling and don't have time to charge your phone, outside of those reasons I don't see why someone would need an incredibly large battery. I think that the fact that Android devices have been known for poor battery life for a very long time and people are expecting android 6.0 to be just as "battery hogging" which is why they think the 2150 battery is too small. Efficiency plays a huge factor that people are just ignorant to because they haven't used a marshmallow device or an iphone to understand it. Small batteries CAN last the day with the right operating system. Apple puts small batteries in their devices to maximize profit, but what if they put a 3200 mAh battery in an iphone 6s. the battery would probably last 2 full days with average usage. Point being the efficiency of android M seems to work wonders here. I'm wondering how much longer the Galaxy s6 battery will last after it receives the M update.

And to those who claim they don't have enough time to charge their phone or "find it annoying" to have to charge through out the day, you sound ridiculous. There are car chargers for people who drive, somewhat large (and affordable) portable chargers for people who commute via public transportation. Quick quick charging 2.0 & 3.0 . all you need to do is charge for 15 minutes, if needed, throughout the day and then you should be fine.

All in all, the average user should be fine with this phone. For you people that want a 4K display phone with a snapdragon 850 with a clock speed of 3.5GHz, along with 1 week battery life and 56 hours of screen on time for under $450, need to just pack it up. It's 2015 not 2051. Every phone will have its pros and cons. That's reality. If this phone isn't for you, then it isn't for you. Simple.
[HTC One A9] jaypeg123:
If this even is true, then you have a bad unit, I use mine like u describe and I got atleast 70% left when I come home from work.
[HTC One A9] crustyeyez:
At first I thought battery life sucked, but turned out to be a couple of bad apps (Sony life log and smartband). I ditched them and now getting similar life to my M8.

Last night I fully charged it then unplugged it to see how much charge it lost over night, so over 7.5 hours it lost just 2%. , which compared to the m8 (lost 9%) I'm pretty impressed.

Charge rate seems better too but could that be because it's such a small battery?
[HTC One A9] jkd12589:
I checked the battery use last night. Facebook. ( Which surprisingly didn't come loaded) used 46% of my battery Yesterday ( Per Battery Use stats. ).

There is a good chance it is hogging. ???

As it stands now. I had the same morning and now I'm at 82%. It's been off the charger for 2.5 hours and I've only responded to a facebook message.

I have already turned off unnecessary settings to include enhanced 4G LTE calling .

Hopefully I'll see how it goes.

My screen is on minimum and it has already dropped from 82% to 80% in the time it took to write this.

This kind of feels like the Old days when the HTC EVO came out.
[HTC One A9] jaypeg123:
That is NO news about fb app. Never used it never will.
[HTC One A9] rlvl:
After a couple of days of usage, the phone is doing about ok for me. Screen on time is just as bad as phone idle time is good. Put them together and they are lasting my average work day.

Had plugged it out yesterday at 7 in the morning and when I returned at 5, it was 33% which is acceptable , given that it had been on Wifi and 4G through the day.

I just left it unplugged from the charger last night and the Doze feature really shines through. Screen shot attached.
[HTC One A9] Ant biggs1:
Is it worth upgrading from m8 to a9?

Im thinking of getting the new a9 but dont know wrther to get an m9 instead. I am currently using an m8 but want to upgrade. Should i get an m9 or a9? Im sticking to htc phones as i like the desighn.
[HTC One A9] mlodykaras:
Wait for M10 :D
[HTC One A9] nuvision:
mlodykaras,

Any word on a projected date of availability?

Thanks,
[HTC One A9] mlodykaras:
Probably March/April. Considering all this year's hardware is overheating and overall not impressive waiting is actually a good thing. Im still on my moto x 1st gen! I hope m10 will convince me to buy a new phone :)

I had HTC HD, hero, One X, and M7. I was considering A9 but it smallish battery and especially the price is a deal breaker. In Ireland A9 in carriers is just like 50e cheaper than m9! It's basically m8s with worse battery but better camera but the price is like 30% more. :( HTC wake up ;)
[HTC One A9] jblparisi:
Hi, Battery life is comparable to iPhone6. Slightly worse or better depending on how you look at it. I'm talking like a approx 25% drop running a 90min full screen movie, to use a common example scenario. iPhone 6 would be slightly worse like 26% from what I have learned. Just something most people don't think about.

And yes I do have a A9 right here and have been testing the heck of it the past 3 days, including paired to a gear neo 2 converted to Android Wear.
[HTC One A9] pkinetics:
It all depends on what your want level is. Can it hold off until after Mobile World Congress in Feb 22-25? That should be the announcement of the next HTC flagship.
[HTC One A9] AlfaGTV:
I'm right now at 51%. Unplugged it at 8:00 am. ~1hr spotify and a bit surfing...4G always on. Overall I think it's better than my nexus with marshmallow
[HTC One A9] Haz04:
Any idea what your SOT was? Was the phone stationary when not being used or in your pocket? I'm curious how still the phone has to be for doze to be enabled? Would it activate if it was In a bag in the car whilst driving? Or does it need to be completely still?
[HTC One A9] weidnerj:
Plus you can also now get a fast charger 2.0 that goes into a car power outlet, can charge it while driving too.
[HTC One A9] AlfaGTV:
I can't say exactly what my SOT was but the phone is always in my pocket and I use spotify in the car when I drive to work and when I drive home. I don't think it needs to be completely still. Right now I lost about 3-4% in 3hr stand by.

PS: is there an app that measures my SOT during the day?
[HTC One A9] hx3:
GSam Battery Monitor is very useful.
[HTC One A9] theNdroid:
Mine came in 2 days ago and this is currently my second day using the phone. I'm a heavy social networking user (Snapchat, Facebook Messenger, Facebook, and occasionally Instagram). When my girlfriend finishes shopping on my phone I'll post GSAM screenshots. Screen on time is about 4 hours. I have a variety of opportunities to charge throughout the day and with the in the box charger I fully charge in about 20-30 minutes.

I have never been a big fan of the Facebook app but I decided to give it a shot while I test out the phone's battery.

On my first day I left the house with 100% at around 6:30am and when I got home at 6:00pm I had 42% left. I had the phone on all day. I watched a 720p show at 30-40% brightness for about 45 minutes (while on airplane mode). When I got to work I left my phone ON in my locker (so the screen was off). I noticed the battery was draining when I checked it at around 11am so I turned off the wifi and 4G. after that I got some great standby time. I used my phone for Facebook and snapchat for 20 minutes and then I turned the 4G and wifi off again. I listened to music on my way home on the subway (air plane mode) and watched another video as well in 720p. I ended having 42%. I put my phone on the charger when I got home. and wen i went back out 35 minutes after that I had 81%. So the phone holds up pretty well on moderate usage.

But today I got some crazy drainage after i recharged during work. At around 6pm i was at 100% and i turned my battery saving location services on to use a cab service app. and my battery was at 75% . Google's location services are a battery hog, if we can find a way around that, then we'll probably get Galaxy s6 screen on time (5.5 hours+) . I think social networking apps are very bad for the battery though, like snapchat, and Facebook and stuff. Even on the s6 i think they'd be bad.

Interested in reading more battery reviews for our a9 though, keep it up guys.
[HTC One A9] pumah350:
A9 battery cycle

This one was the first full battery cycle I did after the initial set up... I was on it a lot more than usual so I got over 10+ hours with 5hrs sot. No battery saver, stock launcher
[HTC One A9] pumah350:
A9 battery cycle

This battery cycle I have battery saver enabled with Nova Prime launcher enabled... I didn't get a screen shot of my sot but I imagine it was about 2 hrs, more of a normal day for me. But what's significant is the 10% drop after 5.5 hrs!
[HTC One A9] Haz04:
I didn't realise Sense had a SOT section. Is that new?
[HTC One A9] theNdroid:
I think that's a Marshmallow feature. Not sense.
[HTC One A9] stats9:
A9 Battery life SOT

I got the ATT version of the A9. I've been getting around 4 hours of SOT with hardly any battery drain while not in use.

I got an Anker 3.0 USB charger off amazon, but I haven't noticed any difference between it and the charger that came in the box.
[HTC One A9] Haz04:
With Sense Lollipop, power saver would show on your lockscreen as a notification all the time. Very annoying! Does this still happen with Marshmallow?
[HTC One A9] theNdroid:
I think you bought a USB 3.0 charger. That's different from a Qualcomm Quick Charge 3.0 charger. Those are very different. A USB 3.0 port could lack quick charging capabilities while a USB 2.0 port could have QC 3.0 capabilities. Be very careful of what chargers you buy, Amazon merchants often market their products inaccurately/deceitfully.

The charger has to be "Qualcomm Quick Charging 3.0 certified" which should have the Qualcomm Quick charge symbol branding on it like this Anker charger does.

It's $25.99 and there are only two left in stock as of 8:23pm EST 11/20/15.

Here's the Amazon link in case anyone is interested

https://www.amazon.com/dp/B016LO4UTA/ref=cm_sw_r_other_awd_yw8twb774G2X9
[HTC One A9] theNdroid:
Yes it does, unfortunately.
[HTC One A9] eelpout:
I'm on a rooted A9 using Greenify. to my surprise when I woke up this morning with about 85% left, it said it was going to last for 3 more days! wish I had remembered to take a snapshot of that. :)

After using it a bit today at 60% it says I have 22 hours left.

View attachment 3550629
[HTC One A9] hx3:
A lot of texting, Clash of Clans, YouTube, Facebook, XDA and others. Power saver off until I reach 15%. Location services set for low battery use. Three email accounts syncing every 15 minutes. I've only had the phone since the 19th, and so far so good on my end. Mobile data is enabled, but rarely had to be used, so that helps with these stats.

Sent from my HTC One A9
[HTC One A9] hyudryu:
I charge my phone every night, and in the morning, I'll take it to school, where i'll maybe use it for 1 hour (on wifi) and during work, I barely touch my phone and during that 8 hours, it goes from like 70% to 20% ish, and then by the time I get home it's around 10% and ready to be charged again. Honestly I think the battery life is much shorter compared to iphone
[HTC One A9] theNdroid:
Battery life depends on usage and settings. People are squeezing out 5hrs+ SOT while I'm averaging just under 4hrs.
[HTC One A9] theNdroid:
What is "Power for system data", and how can it's power consumption be reduced?
[HTC One A9] AlfaGTV:
So far I'm very happy with the battery. Plugged it on the charger right now as I'm going to sleep. Last night it was on flight mode since I charged it in the evening yesterday. It lost 1%!! In 8hr. But sot was only 1h20m, because I don't use it that much when it at work. So far I think the battery is way better than the one in my nexus 5.
[HTC One A9] theNdroid:
Day 6
[HTC One A9] swich2mac:
FB messenger is probably eating up your battery.
[HTC One A9] Haz04:
Guys, there are quite a few battery stats but hardly any screen on times. Can we get some screen on times?
[HTC One A9] theNdroid:
The screen on time is there. You're not looking hard enough.
[HTC One A9] Haz04:
Umm yep, I can see that. I wasn't referring to your post. There are others with stats but SOT chopped off the photo. Go back and you'll see what I mean.
[HTC One A9] Kajman:
I switched from m8, with normal use (fb,camera,Phone, 200km car trip with hf), bluetooth and WiFi on, yesterday i unplugged at 9am, at 11pm plugged in at 43%, so possible half next day was possible. Not worse than m8 for sure.
[HTC One A9] theNdroid:
Day 11 (Very Impressive)
[HTC One A9] Haz04:
Nice! Anything over 4hrs is fantastic. What settings are you running? Power saver on?
[HTC One A9] theNdroid:
I greenify apps I don't need running in the background. I put my phone on airplane mode when I'm on the subway, and any other times I don't need (or can't receive) a cellular connection. And lastly, I use Wi-Fi as much as I can.

If there are anymore screenshots or information I can provide please feel free to ask or PM, but I think we need to talk to those guys who were squeezing out 5+ hours of screen on-time, I wanna know how they did THAT. Lol

P.S. Chrome was very "unfriendly" to my battery so I disabled it and downloaded the "HTC Internet" browser. I'm not sure if it's optimized better than Chrome is but it's definitely more battery friendly than Chrome.

Disable apps you don't use and greenify the apps you use occasionally, but don't need running in the background
[HTC One A9] Haz04:
Does Greenify require root?

The HTC browser has been running like **** on my M8 lately so I just changed to Chrome. How does it run on the A9?
[HTC One A9] gunnarrrrr:
greenify does require root to really take advantage of all of the features. It does have a non-root mode that's still helpful.
[HTC One A9] theNdroid:
Day 13 .

I Uninstalled snapchat. Disabled some more apps , and surprisingly, even tho I had my brightness high (40%-70%) I still got 4+ hrs SOT.

Very impressed. However I will say I did experience my first, glitches and self turn off today. The phone turned itself off twice. Settings was lagging and kept malfunctioning. Everything is back to normal tho.
[HTC One A9] Cashreedhar:
From the sceenshot it looks like the phone was in airplane mode 50% of the time (no cellphone signal/any activity during this period) or switched off. Also, from the app usage, there are no regular must use apps used. If we use our phone on day to day basis, what is the use of a (smart)phone if we need to keep the phone on airplane mode half the time and no other app activity.. even basic Nokia phones would give more battery efficiency with this conservative usage :D please throw some regular battery usage with antenna on whole day and normal activities. Even if we receive 2.5 hours SOT, it should be realistic
[HTC One A9] theNdroid:
If I'm working and I put my phone away in my locker, why should I leave the signal on? I won't be reading the text messages right away anyway, so I might as well turn the signal off.
[HTC One A9] Haz04:
TheNdroid, can you change the colour of the notification light? It's green in a review I watched today but I'd like to change it to blue or red.
[HTC One A9] gunnarrrrr:
Just got a new qc3.0 charger from anker. I know our phones still run 2.0. But I just got 88%-100% in 25 minutes. Doesn't seem any faster than a normal usb charge...?

*edit: that's screen off, data/Wi-Fi off, location off, no background apps, phone in standby.
[HTC One A9] pankey:
I'm pretty happy with A9 battery life. Highest screen on time I got was over 4 hours but usually its closer to 3. No compromises on anything except the standard power saver kicking in at 15%. I cant post links yet apparently but i have screenshots from multiple days of examples.
[HTC One A9] postmortem.:
So Doze does not seem to be working for me... over night phone wakes up constantly and loses about 10% of battery charge, every night... what are your experiences overnight?
[HTC One A9] pankey:
from around midnight to 8/9am I lose 5-10%. i only have battery optimization off for gmail, textra and google voice. I'll charge the phone before I go to bed tonight and see what it says in the morning. I kind of miss the days when the phones battery would hang out at 100% for like an hour or 2 before going down to 99.
[HTC One A9] Haz04:
Is Gmail set to sync every hour? It's probably waking your phone up every hour unnecessary. Gmail need to sort that out. It's ridiculous that the lowest sync frequency is hourly. Google disappoints me with their apps sometimes. Even Textra is so much better more feature rich than Messenger.

Anyway, back on topic. When you look at the battery history chart, how often is the phone being woken up? Are you running power saver?
[HTC One A9] theNdroid:
From my current understanding you cannot.
[HTC One A9] pankey:
gmail i have set to push my google apps work emails, inbox syncs my personal gmail. facebook sync who knows when but contact sync is off, twitter syncs every 4 hours, htc weather sync every hour, greader every hour, location history on, i never use power save mode manually only when it kicks in at 15%. my usage is probably on the high side as far as having a bunch of apps on at the same time. it does wake up while the screen is off here and there but nothing too crazy i think.
[HTC One A9] Cashreedhar:
Screenshots from second day of my use (full cycle-until 9%). - Sprint HTC One A9 - grey

Background:

This was the second day and all apps were loaded up and updated in Play Store. This was a typical working weekday, and the phone was kept on LTE mode during travel, at home and work the phone had the just CDMA on. Couple of phone calls and few socail network browsing, emails, regular whatsapp, also few photos snapped for testing. Music streaming was on for around an hour. Email notification and all other are at default and no power saving apps being used. Display was kept at normal brightness. Updated few google play apps.

Key findings:

1. Doze doesn't work unless you switch on power saver (in my case after 15% power saver was automatically activated, 0% power drain until morning).

2. Camera drains more battery than I thought. I took around 15 photos in total but the camera used around 11% battery compared to other apps.

3. Even though I never had phone signal issue, it caused good enough reason for battery drain, which is because I had bad signal while travelling through the tunnels on my way and few low signal spots. Apart from that I had full bars.

4. Compared to my M8 running on Sprint, with Lollipop the battery life is better and around 3 hours of (If I went till 1% I could have achieved it) screentime I never had on my M8 with default settings. But, that depends on how M8 performs in terms of battery when it receives MM on Jan 4th.

5. With some tweaking with greenify app and keeping the phone on power saver mode, it will be easily possible to extend the battery life to a good stretch, but I am a person who wouldn't hesitate to connect the charger after a day use and for me the battery life is excellent. Also, battery drain while playing games is not really significant (though I haven't played any games during this battery cycle)

6. Charging is lightning fast (no surprise as the battery is small comparatively) and easily gets ready very quick for next use.

Note - A deviation noticed- the default power app shows battery used by the screen is 22% while GSAM shows screen used 57% of the battery.
[HTC One A9] pankey:
i haven't slept a full night in awhile but for the couple of recent nights i charged the phone and left it unplugged from about 3am to 8am, it averaged about 1%/hour discharge.
[HTC One A9] theNdroid:
How did you get the Vanilla Android Wi-Fi and cell signal symbols on your notification bar?
[HTC One A9] Haz04:
I leave power saver on all the time on my M8 but without screen brightness reduced.

I could be wrong but I can't see an option to customise power saver on the A9?

Is there any way around this?

My M8's battery life has been terrible since lollipop so Marshmallow can't come quick enough!
[HTC One A9] Cashreedhar:
I think it is pretty common for Sprint A9 phones. That is my complaint, I like the sense status bar icons better :D
[HTC One A9] mave004:
all my htc devices, have the same ratio of "batery life".. so im acusstomed
[HTC One A9] Cashreedhar:
Power saver option is same like M8, you can customize when it can be activated automatically
[HTC One A9] Haz04:
I'm pretty sure it's not the same. On my M8 I leave power saver on all day. On the A9, when I turn on power saver, it only gives me 3 options as to when it can be turned on. Meaning it can't be on all the time.. See pics

https://www.dropbox.com/s/uytd6lvyzeyxxvw/received_10153863915390719.jpeg?dl=0

https://www.dropbox.com/s/h49ubq61pq4k47i/Screenshot_2015-12-10-19-40-24 (1).png?dl=0

Also, the options to adjust how power saver works (such as reduce screen brightness but not vibration etc) aren't available on the A9.
[HTC One A9] Cashreedhar:
You are right. You don't have options to customize. But if you want to keep the power saver on all day, just click on the check box in front of the power saver option.
[HTC One A9] jmkhenka:
For those wondering, Doze is really not that big of a miracle that google made it out to be.

Doze only goes active when the phone has been stationary (and i mean STATIONARY. Laying on table is OK, having it in pocket is not) for 30 minutes.

and 30 minutes is a long time for a phone not beeing used, most likely it doze during night time but during the day ods are you are not getting any benefits of doze at all or wery little.

there is a app that can make doze go in faster but needs ROOT/SU but then you will severely hamper the usage of data-based messenger apps like FB messenger, whatsapps etc. Having a notification delay 20+ minutes is not fun if it's importaint.

compare to my iphone 5 - 90 hours stand by and 2 hours usagetime and thats with same syncing as my N5X and still 80% battery, ios basicly drops no power during stand by compared to android.
[HTC One A9] theNdroid:
I'm the opposite. I like the stock Android status bar icons. Looks cleaner and neater, but I guess since I have the unlocked variant I'll be having the HTC version. Hopefully in one of the coming updates they'll change it.

I just wish there was a way for us to remove the battery saver icon as well. It's very annoying.

---------- Post added at 08:30 PM ---------- Previous post was at 08:05 PM ----------

Doze only activates when stationary for the exact reason you said, 20+ minute notification delays are annoying and would make "instant messaging" pointless. Why would doze be activating when I'm moving around. If I'm moving around with my phone then I obviously would need it awake and active. However, I do agree that 30 minutes is a very long time and depending on how someone uses their phone they may want that number to be lower, or higher.

Now, about iOS. iOS may have better standby times, but that's because all SYNC is shut off. I message my iOS friends through facebook messenger and at times they won't receive my notifications right away because their phones were in their pockets and on standby mode. Basically, iOS standby = 20 minute delays.

When we get a XPOSED for the A9 we won't have those problems anymore cuz we'll be able to greenify social networking apps and rely on GCM (google cloud messaging) to notify us when we get a message.