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Hoping someone might be able to help me here..
Within an hour of being taking off the charger (and confirming it was 100% at that time) my battery life is down to 80%.
What's happened so far is:
1) alarm went off (set to ring only - no vibrate)
2) recieved 2 emails on yahoo (set to check every 60 mins)
3) received 1 push email through exchange/active sync
4) 1 calendar appt reminder.
The screen has probably only come on 3 times for no more than 10 seconds each time. My brightness is set to the 2nd lowest level possible. My ringer is on the highest.
Here are the apps I have installed. I have not "launched" any of these today.
.net 3.5
Easy Shares
Google Maps
Microsoft My Phone - (set to sync once at 3am & was on charger then)
Mobil manager for netflix
S2U2
Waze (another GPS app)
Phone is about 4 weeks old.
download HD Tweak and set up data disconnect after to 1 minute. I am almost positive your data is staying on after downloading email because i had the same problem with my Touch Pro. Keeping the data session open is a huge battery drain
My battery life is terrible too! I charge it fully throughout the night and the phone typically dies by the time I get home from work at 6PM or so. I barely use it at work. Never talk on it. The occasional text message. But by the end of the day the phones dead. I have no idea why. I know for some odd reason by phone will not automatically go into sleep mode. It should, but doesn't. Not sure if that kills the battery even though I manually push the sleep mode button each time.
I set up the HD Tweak software. We'll see if this helps. Does it work for the Touch Pro 2 also?
Any of you guys using a case with a magnet on it by any chance?
Possible explanation...
ade333 said:
Hoping someone might be able to help me here..
Within an hour of being taking off the charger (and confirming it was 100% at that time) my battery life is down to 80%.
What's happened so far is:
1) alarm went off (set to ring only - no vibrate)
2) recieved 2 emails on yahoo (set to check every 60 mins)
3) received 1 push email through exchange/active sync
4) 1 calendar appt reminder.
The screen has probably only come on 3 times for no more than 10 seconds each time. My brightness is set to the 2nd lowest level possible. My ringer is on the highest.
Here are the apps I have installed. I have not "launched" any of these today.
.net 3.5
Easy Shares
Google Maps
Microsoft My Phone - (set to sync once at 3am & was on charger then)
Mobil manager for netflix
S2U2
Waze (another GPS app)
Phone is about 4 weeks old.
Click to expand...
Click to collapse
Just curious, did you charge the phone while it was on? If so, I've found it a problem. I once charged my phone while it was on, and I took it off after about 2 hours (the green LED indicator probably showed up an hour before I took it off). I checked the battery meter and it registered at 89%! I found out that there's a flaw in the way the found charges. Once the LED turns green for a full charge, the charger cuts off, but (I think what I'm about to say might be true) the phone thinks it's running something as it charges, thus causing the rapid battery drop.
Since then, I stopped charging my phone while it was on. I now turn off the phone and then charge it. I can last a whole day with about 45 minutes total on the Internet, and my battery would go to about 60+%.
However, as jaas666 pointed out, are you putting your phone near a magnet? The magnet tricks the phone into thinking the stylus/keyboard is being pulled out, thus causing it to wake up, which will drain your battery.
Have you tried a task manager to see if a program is running when it's not supposed to?
http://www.dotfred.net/TaskMgr.htm
I had terrible battery life and found two issues. One program was always taking up around 10% CPU usage (VZO video chat software). Also found that Google Sync, set up through ActiveSync, was having trouble. I'd open ActiveSync and find it in a synching loop. For me the solution was to untick "Tasks" in the sync menu. Since then, battery life has been great.
Aspesi4 said:
My battery life is terrible too! I charge it fully throughout the night and the phone typically dies by the time I get home from work at 6PM or so. I barely use it at work. Never talk on it. The occasional text message. But by the end of the day the phones dead. I have no idea why. I know for some odd reason by phone will not automatically go into sleep mode. It should, but doesn't. Not sure if that kills the battery even though I manually push the sleep mode button each time.
I set up the HD Tweak software. We'll see if this helps. Does it work for the Touch Pro 2 also?
Click to expand...
Click to collapse
HD Tweak works fine on mine, I've also heard of some people using Diamond Tweak. I mostly text all day maybe some internet but I have gone a day and a half without charging and even then my battery had only gotten to ~20% so I think with a few changes it could be fixed. I'd check out some of the Tweaks threads here and at PPCgeeks for registry edits u can do to save the battery too
I had those issues with my 2000mAh battery on my sprint tp1. With my verizon tp2 my battery life is fantastic. I use the crap out of it all day also. Was wondering if the bad battery life is happening mostly with sprint users.
I have my active sync connected at all times for wireless email calendar task syncing. I charge with the phone on all nite long and the battery drains only slowly throughout the day. Less than 50% today. It is on 24/7 I never shut it down unless I'm soft resetting due to a file or app install. I use my ms3.5 task manager to keep stuff closed after using. I always put it to sleep mode by the button when I'm done with it. My screen is set to brightest and stays on 2 min. before sleep mode engages unless I manually do it.
I'm sorry to hear your battery issues, my tp1 with sprint was really hard on battery juice. I found it would struggle to find a signal alot, one reason I switched to vzw.
Hope you figure it out.
Sad to say that my less than 4 days old Sprint TP2 is disappointing to say the least in battery life and all around usability. Now i'm coming from a Treo Pro and so used to one handed operations and such. But i digress...
Battery life on this beast is sad, really sad. Someone alluded to Gmail Exchange ActiveSync as a potential battery drain so i might look into that. Basically i'm gonna hard rest and start from scratch applying less tweaks. Basically i find TF3D tedious really..takes too many steps just to do some basic things. I turned it off and managed better a bit but i just might go back to my Treo Pro and sell this thing..
My battery "appears" to drop quickly, but actually hangs in there quite nicely. My old phone only showed me 20% increments, so going to 1% makes it very noticable.
I ran cleanup first thing, then went back and customized.
I use Activesync in push mode (7 days per week 8am - 9pm), have it checking Hotmail, stocks, weather every 30 minutes. BT is on, Data on, WiFi off. I even went back and turned auto screen back on as I couldn't read cleanups default change in the sunlight.
Gets turned on at 7am, and at 10 pm I'm ussually 30-40%. Medium user - 40 minutes phone use daily, 1-2 hours total IE time, ALOT of email checking, hardly any SMS.
I do use a magnetic holster too. S2U2 fixed that issue.
Biggest drain I noticed is screen. If I turn off auto and go back to CleanUp default, I can get through almost 2 full days if I turn it off around 11pm, and back on 7am.
And as far as battery total use, my older phones always turned themselves off at about 15%. THIS THING WARNS ME AT ABOUT 4% and turns off 2-3%! That's alot of extra battery use.
There is a company making a 1750a battery that will fit in stock case.
Tp2 VZW
Not sure if this will help you but some phone cases can cause battery drain. Read here:
http://forums.wmexperts.com/showthread.php?t=175441
Okay, I have an Imagio (please don't judge me ) and like many of you TP2 owners, the only real complaint I have about the phone is the battery life.
For me, I rely heavily on the device as a phone first (no big surprise, right?), email second, and then text and internet. Based on how I use my phone, I think the biggest contributor to my quick battery drain is the fact I have to leave my data connection 'on' to auto send/receive email.
I'm interested to know if there's a tweak or something out there that would allow me to leave my data 'off', automatically turn it 'on' to send/receive email at my specified interval, and then turn it 'off' again once completed. I know I could do that manually but was curious if there's something out there that could run in the background.
Also, thinking about it, has anyone looked into changing the weather tab uppdate time? I'm also wondering if the weather sync feature is sucking battery power?
Ok, my TP2 with Telus I have on data all the time, with push email (so more frequently goes active) and have no problems at all with battery usage. I can go several days between charges, but don't because I plug my phone in every night anyway.
How much talk time do you have on the phone on an average day? How many emails do you recieve? Is it exchange based on POP/IMAP?
You can easily set up the email sync itself to be manual, i.e. open your email app and click on send/recv - this way it won't hop on itself to grab emails all the time which will help with your battery life, but not really by much.
Similarly just set the weather application not to update automatically.
Keep in mind that a single phone call (on average) lasts about 3 minutes, a single data session lasts only a few seconds.
But even if you still want it to send/recv at a specified interval then when the connection is dormant (i.e. in between scheduled send/recv) it's not really taking any more power than if it was "offline" - this is just a state that both ends know, not an always-active transmit/receive when there is no actual data.
If you really need more battery life then just wait a few seconds when you check your email or the weather for it to go online and grab the data on demand.
Thanks for the reply Telek. Since I've had the phone, my talk time per day has been pretty low, relatively speaking. I seem to notice the drain after the phone's been sitting idle. I charge daily but if I didn't, I'm guessing I wouldn't come near several days on a single one.
I do get poor reception while I'm in my house and I'm thinking that might have something to do with it. What you wrote about the data connection while inactive makes a lot of sense - I should probably be looking elsewhere.
Also, my phone is set to CDMA only in case any viewers are thinking of asking the question.
Well poorer reception will hurt battery life, but only while the phone is active. CDMA signals all have to reach the tower at the same strength (IIRC) so if a phone has poorer reception it will have to up it's broadcast power.
How many emails are you getting daily? Is it feasible to just go to "on demand" and manually do a send/recv to see if that helps your battery life?
It's possible that the phone isn't going into sleep mode, or times out at a much longer interval than normal. Perhaps try going into the power management page and shrinking the timeouts?
Not sure what else to suggest - maybe you just have a bad battery?
I am in the same boat here. Although I use pop and don't get that much email. I use it as a phone, text, then data. Just through a days use, sometimes not making a phone call at all my battery will be near death. I HAVE to charge it daily. I have a car charger, charger at work, and 2 chargers at home so I always can charge so it isn't that big of a deal for me. My signal strength is normally above 70% through my house and work.
I am ready to try out a new rom to see if that makes a difference.
PS not trying to thread steal but throwing out some info that might help.
I have to charge my TP2 like 3 times a day. Between Twitter, email, and reading on the net it goes pretty fast.
My battery life isnt too good either...I have email set to check every 2 hours. If i browse the net for about 15 minutes I lose a notch in battery life. I have to charge every night too!!
I got the 2100 extended battery in the mail today, im going to try it out and see how it does...if it's not a big improvement then im sending it back...the extended battery cover is ugly and slightly bulky so I dont like that to well...
Has anyone fooled around with the power management settings in ATC? If so, any notable changes worht exploring?
Well for my usage on a Sprint Touch Pro 2, I get good battery life. I make maybe 10 calls a day but each call is less than 2 minutes.
I surf the web maybe an hour a day and send + receive maybe 75-100 texts a day. I dont check my email to often.
Maybe 3 times a day I press Send/Receive but after I finish my stuff, I go to Communications and turn off my Data Connection.
At the end of the day I have about 60%. Although I have my backlight set at 30%. Others like it halfway and others fully set.
30% is ok for me indoors but once outside I turn it up to 80% if I really need too but then set it back to 30% once indoors.
Some solutions to Imagio battery drain
My 1st Imagio had no problem with battery, but the "end" key broke so I had a replacement sent. The replacement had nicks on screen and major battery drain, with overnight charge, by 3:00pm I had 5% left. So I sent for 2nd replacement. Same problem with the battery, fully drained by midday. Frustrated, I went to Verizon and requested replacement battery. All seemed well at first. Then, the new battery began to drain. I started eliminating programs running and now, at 10:00pm, I still have 72%, I talked, texted, sent pic mssg, got email, updated weather...etc. This is what I changed.
I turned the phone to CDMA only.
I changed input back to default HTC qwerty (I had sip change to swype)
I set email to check once a day, but I hit send/receive periodically
I set weather to check once a day.
Sorry, but I also uninstalled "codyppc performance booster"
I reinabled Auto Divice lock. (this seemed to help save battery by locking)
I am running spb mobile shell 3.5 and WM 6.5 interface. Whenever I run the HTC Touchflo3D it seems to drain more battery, along with suck up memory.
I check running applications often, reset a couple times a day. I am having an issue with my spb time alarm going off in the morning though. I will try something tonight to eliminate that as the culprit. Overall, I think anything set to run regularly will drain the battery. With these fixes, now I LOVE THIS PHONE. I have all my programs on it, lots of program and storage memory left, (more than I had out of the box) tweaked just the way I like. Hope this helps someone.
Please don't forget Clean Ram(search xda) , helped me alot.
Okay so I noticed my Captivate seems to lose a lot of battery while in standby. To test this, I left it unplugged when I went to bed last night. I checked the battery level right when I went to sleep and then again when I woke up...
My battery drained from 64% to 31% in about 7 hours!!!
I know other threads discuss bad battery life. A bright screen and a 1GHZ processor can cause this so I can understand why the phone won't allow me to browse the web for 10 hours straight. But is everyone else getting an almost 5%/hour drain in battery while in standby?
Here is a little info about my setup:
-I took off an animated background and put one that is relatively dark (Screen is off during standby so I would think this doesn't matter)
-I have WiFi and Bluetooth enabled.
-I use both wireless networks and GPS for location.
-I have 1 Gmail account setup to check every hour.
-I have the Daily Briefing set up to check every 3 hours.
-I have the Slickdeals widget set to check every 2 hours.
-I have the Latitude widget running (you can't set how often it refreshes).
-I have the ESPN ScoreCenter widget running.
That's about all I did that I can think of that can possibly affect battery. I know I would get better battery with less background widgets, but all of this is in line with the amount of background services I had running on my last phone (Tilt 2) and that thing would last for several days with light use.
So, what I'm trying to find out is whether or not this is normal behavior that everyone is seeing or perhaps if one of the background widgets I'm using is known for draining a crazy amount of battery. Maybe I need to hard reset the phone? Thanks in advance for any ideas on how to lock this down.
In poor reception I could see that. But I'm good area that's too much. Like 2% every hour is good... 5 is too much....
Thanks for your reply. I had 3 bars of service where I was last night. Also, this isn't the first time I've noticed about 5%/hour for standby, just one example...
So it sounds like I'm getting worse drain than normal? Now, how to fix it?
Well...with all the email checks and having various Widgets check for updates..it will definitely drain the battery. I have been able to easily get twelve+ hours on standby without GPS on and turning off wifi when not at home or in a place with wifi.
Definitely can't go days without charging like I could with previous phones like my blackjack II buy I can get 12-16 hours with light to moderate use and 10-12 with somewhat moderate use of Facebook, wifi, various other apps.
EDIT: the Bluetooth as well will drain the battery.
Sent from my SAMSUNG-SGH-I897 using XDA App
I have very similar battery usage to use. About 5% an hour not doing anything. I am always around a wifi and leave it turned on. I have nearly an out of the box setup. Between the poor battery life and crappy GPS, I may very well be taking this thing back.
Under Settings > Wireless and Network > Wi-Fi settings > Bring up the Advanced menu and set the Wi-Fi sleep policy to "Never".
This has helped my battery life immensely, since I am around Wi-Fi most of the time. This way all your data happens over Wi-Fi instead of 3G when the screen sleeps. I disable Wi-Fi when I'm not around any APs I normally connect to.
Pulled phone off the charger at 6:00AM yesterday morning. Streamed an hour and half to 2+ hours worth of Pandora over wi-fi getting ready for work and then some in the car. Did some web surfing during the day, various other things. (No phone calls really, except a brief wrong number). 4 e-mail accounts checking every 30 minutes (one an Exchange server). Also have Touchdown running push e-mail for another Exchange mailbox along with the Touchdown widget. Played around with some GPS apps (new google maps, Places, etc for a few minutes). Battery was down to about 16% by about midnight last night.
My phone charged fully overnight (with power off). Was turned on at 7AM, it is now 11am, and am at 90%.
I do not use GPS, have nothing running, no emails or social networking status updates.. The phone is on standby on my desk. I only do a few text messages and 5 minutes of voice calls / day.
So this means I get 40hrs of standby time? That is a little ridiculous.
I chatted with AT&T tech support and they said that the AT&T stores don't have battery replacements yet, but I could get a full phone replacement since I am within the 30 days still.
But from what I am hearing, it seems most people are having the same issue if not worse, correct?
I really don't want to set everything back up AGAIN. I am coming from using a Samsung Eternity - understand it isn't a true "smartphone" - but I use it the same, and would easily go 3-4 days without needing a charge.
with GPS off, wifi off, BT off, no data sync or background data turned on, i charge it fully at night -
last 3 nights in a row, at midnight it was showing 100% and at 7:30AM it would show 97-98% remaining, and that was using the alarm, set to loud and probably ran 2 minutes before i'd hit the off button
From 7:30am-11am, I have used 4% of my battery. I have these things going on:
-Exchange sync (real time)
-Facebook sync (once every hour)
-wireless off, bluetooth off, GPS not being utilized
-Weather.com and a Google search widget
The battery use shows this:
-Cell standby: 48%
-Phone idle: 36%
-Display: 8%
-Android System: 3%
-Email: 3%
-Android OS: 2%
I've barely used my phone this morning, so I'd think 4% of use in 3.5 hours is quite acceptable. It sounds like you need to make some modifications to improve your performance.
firehazard - what modifications have you done? I have wifi/bt off, background data off, no email syncing - display brightness all the way down..
To anyone who is having very poor battery life, I suggest a factory data reset when you exhaust other options. My phone wasn't lasting me more than about 8 hours on a full charge, with light to moderate usage. After a factory reset, I just ran nearly 24 hours with similar usage.
I can't tell you what changed or what got removed, maybe it was an app that was running and draining the battery that I didn't see, but battery life is MUCH better now. Hell, everything is running much better, even the GPS.
I went from wanting to throw this phone at a wall and return it for my iPhone 4 again, to loving it in less than 24 hours.
born_fisherman said:
firehazard - what modifications have you done? I have wifi/bt off, background data off, no email syncing - display brightness all the way down..
Click to expand...
Click to collapse
I'm referring to him running wifi and bluetooth when he's not even using his phone. Stuff like that.
Just for recording keeping, when a phone company says their phone can last XXXHours in Standby this means, that all wireless transmitters are off. this means (for the most part) airplane mode, with bluetooth, and wifi OFF.
these continuous wireless transmitters are why you didnt get the 200Hours or what ever it is in standby mode.
I recently took my phone back to BestBuy for a replacement since my battery was trying to kill itself overnight as well. I did the full charge when I first got it and purposely ran the battery down to quickly get it to turn itself off at 0%. Did a full recharge and repeated this process about 3 times and last night my battery only went down 3% over 6 hours. Compared to the 30-40% that was draining before, I'd say the full discharge/full recharge works that people have been talking about in the battery threads works. Thanks, everyone! I use Y5 to have it automatically connect to my WiFi at home when it's in range. Not much more than the usual was left to sync (although JuiceDefender may be working to turn stuff off when my screen is off) such as Gmail, Beautiful widgets, facebook, and one rss feed.
Either that or I had a crappy battery before
Seems like some folks are having the same problem as me, while others are having much better results. Firehazard's situation and drain while not in use is pretty much in line with my expectations of the phone. With my old Tilt 2, I left WiFi and Bluetooth on all the time and still got great standby time out of the phone. When those connections weren't in use, they weren't really draining my battery in any way. I'm going to try to disable them though and see if that helps. I'll also try to monitor the battery usage screen and see how much power is going to wifi and bluetooth when I have them on.
I've been suspicious of my battery as well, tracking it casually today.
Took it off the charger approx 8:30am, immediately went to 99%.
Watching it over the last hour it appears to be losing 1% / 10 minutes.
Running services:
SnsService
GTalkService
DMService (Device management)
Swype
TransactionService (Messaging)
org.npr.android.news (NPR)
Battery Widget
Dictionary.com (word of the day widget)
JuiceDefender
Android Core Apps
Google Voice
Cached Applications:
AppBrain
AT&T Nav
Calendar
com.sec.android.providers.downloads
Daily Briefing
LogsProvider
My Uploads
Phone
Samsung account
Wapedia
Just using it for the past 5 minutes to write up everything running has dropped the battery almost 3%. Albeit I have terrible cell coverage where I am. It does seem that the cell and wifi receivers are a bit weak, or the meters are biased conservatively.
*edit* I want to be clear that I love this phone, I just want to try and find out what and if certain services/applications drain the battery and if not then if I have a bad battery.
Okay, so I turned OFF bluetooth and WiFi and checked the battery before bed and right when I woke up. This time, I lost 24% over 8 hours. Certainly a big improvement over 33% in 7 hours, but also no where near where my old Tilt 2 was. I would lose 2-3% overnight at the most with that phone. I checked the battery meter and the majority of the battery went to Cell Standby and Phone Idle. Those don't seem like things that can be avoided through tweaking. I was in an area with 3 bars of service (same as night before), so I don't think that was an issue.
I'm debating whether or not I should try a factory data reset. Some folks reported good results with that. I really don't feel like reconfiguring my whole device if there isn't a good chance for improvement. Maybe the GPS fix that's coming will help battery life?
Have you tried reconditioning the battery? That would be the charging/discharching cycles mentioned throughout the forum?
I have done it and my phone has been on standby for more than 24 hours and I am still at 50% battery. It's just had very light usage. Wifi on for about an hour, snapping a few pics, deleting some others. A bit of calc usage. When I first got it, my battery was dismal.
Mine hasn't been modded one bit yet, just installed some apps from the market and a weather widget.
Yes, tried that. It actually helped a little but I'm still getting poor results compared to some.
I have another theory/question. I use gmail as my only email account on my phone. Its set up through the system and it syncs to the gmail application on the phone. I also have it set up in the Samsung default email client (which I prefer). Am I wasting battery because the two apps are checking mail independently? Does the gmail account sync while the Samsung one checks at intervals (I have mine set to 1 hr)?
TheSopranos16 said:
Yes, tried that. It actually helped a little but I'm still getting poor results compared to some.
I have another theory/question. I use gmail as my only email account on my phone. Its set up through the system and it syncs to the gmail application on the phone. I also have it set up in the Samsung default email client (which I prefer). Am I wasting battery because the two apps are checking mail independently? Does the gmail account sync while the Samsung one checks at intervals (I have mine set to 1 hr)?
Click to expand...
Click to collapse
probably.
follow battery optimization guide in pimp my captivate.pdf thread. I get 1-2% battery consumption per hour with moderate to light usage.
heavy usage drops my battery about 4-5% per hour. By heavy usage I mean playing 3D games for hours str8
Hi,
First post here, so I hope I'm posting at the right place.
Just bought an unlocked Samsung Omnia W (Focus Flash stateside) around four days ago. I didn't notice anything about the battery life the first two days since I was using it quite heavily and felt the rapid discharge was normal (the usual rigmarole- everything turned on).
Last two days, I've started using services more selectively, and still see my battery discharging at an alarming rate. I'm talking 5-8% in an hour with barely a minute or so of the screen being on for checking texts and sending a few.
I've disabled everything- location services, ALL live tiles, WiFi, Bluetooth, even went as far as to disable 3G and switched to 2G. I switched back to 3G because where I'm at I get a full 3G signal but a very light 2G signal. I've put off all background services (Gmapps was the only one, I uninstalled it). Turned off Xbox Live connection as well. Turned off facebook chat. Removed the People Tile. Three email accounts set to sync "as mail arrives".
I noticed the battery saver screen was showing me only 3 hours on 48% charge. I then completely discharged the battery through WPBench battery test (which showed 52 minutes starting at 25% battery life). Now, I've been charging it for an hour or so, and the battery saver screen shows 22% and estimates only 1 hour as the run time.
Is my battery defective? The WPBench time of 52 minutes for 25% seemed par for the Focus Flash (Engadget gave it a run time of 3 hours 30 on WP bench I think), but this fast discharge is really baffling and makes me kind of afraid to use the phone too much. I've heard the Flash has stellar battery life, so if anyone can throw some light on the matter, that would be great.
By the way, updated to 8107 two days ago through Zune. Normal usage consists of 30-40 texts a day, an hour of calls max and maybe 10-15 minutes of browsing. Battery saver screen usually shows only 9-10 hours on a full charge, though it does last a bit longer than that (14-16 hours). I'm sure such light usage doesn't warrant such a quick discharge.
I apologize if this makes for a really long read, first time here.
Thanks.
First, battery saver gives times based on previous data so it will get more accurate with time. Second, the battery will get better after about of week of use, it takes a little time to 'break in.' Third, if you are in an area that has poor reception your phone will try to find a signal a lot more and this can drain power quite a bit. Fourth, try returning everything to normal as far as background agents, email sync, and data settings ect. but turn 'battery saver' on after a full charge. If you still have bad battery life then perhaps somethng is wrong with your battery/phone.
EDIT: if you are using 'light' as your theme you will use a lot more power since amoled screens work best with black bacgrounds since the black areas are essentally 'off'
Been using a dark tile. Let's see how it handles with time.
A lot of my friends with Android phones simply keep data off since their batteries barely last if it's on, do I need to take any such harsh measures with WP? I hope not, I like my mail to arrive immediately (I have set sync on "as mail arrives").
Push email (the "as mail arrives" setting) is actually a very substantial power-drain. Setting it to even just every few minutes (5? 15? I forget what the next level down is) will help.
I may be wrong, but won't it cost less battery if the phone was getting push mail, say, three times a day for 3 separate mails as compared to checking every hour 24 times a day?
Why would you think that? The phone doesn't magically know when email is available for it, to only wake up the email sync process and data connection then and leave them off the rest of the time. It has to maintain a continuous (or nearly - often enough that you don't notice the gap) connection to the server. Even idle, any kind of live data connection uses more power than a process which stays suspended 99.9% of the time (meaning 86.4 seconds of activity per day, which is probably a pretty good estimate actually).
GoodDayToDie said:
Why would you think that? The phone doesn't magically know when email is available for it, to only wake up the email sync process and data connection then and leave them off the rest of the time. It has to maintain a continuous (or nearly - often enough that you don't notice the gap) connection to the server. Even idle, any kind of live data connection uses more power than a process which stays suspended 99.9% of the time (meaning 86.4 seconds of activity per day, which is probably a pretty good estimate actually).
Click to expand...
Click to collapse
I thought push email and other kind of push notifications were sent from the server to the phone, and so the phone didn't have to be constantly checking for email updates...
The phone needs to be listening for those notifications. That requires running the radio (for data) at a higher-than-minimum level. Push notifications have a similar impact to push email, in terms of battery life. It's not hugely destructive - I have two email accounts that use push, and still tend to get through the day and then a bit just fine - but it does impact the battery life.
Has anyone had the calendar miss notifications? I have my calendar set to remind me with a notification 10 minutes and 30 minutes before events, but the event I put in today had all three notifications happen after the set time. I received a text a couple minutes after the event, and that's when the calendar sent all three of the usual notifications.
Since my prior phone running Android 4.1 had better standby battery life, I have tried various options in Nougat to try saving battery, but I don't know what Google setting would cause calendar events to show up late. I'm just running an unrooted version of 7.1.1, and I have not gotten into anything other than what is available in settings. Any idea what Nougat setting could possibly cause calendar events to be missed? Other than this being some random error where the phone needs a restart, the only thing I can think of is if it's a problem with doze, which might mean changing the calendar to the don't optimize setting.
EDIT: It seems like taking the calendar out of battery optimization probably has probably caused calendar notifications to show up on time
Sometime between yesterday and today the battery went from about 40% to 0%, and the phone shut off. Google Play Services was the top battery usage, which showed 23% of the battery usage and 1204 mAh since the last full charge. I'm not sure how that makes since, considering the specifications list a 2770 mAh battery, so the stated usage would amount to around 43% of the entire battery. I suppose maybe over the holidays, I'll reset the phone and try some different settings.