Database Users

Is constantly killing apps bad for battery life?

I was wondering, if I constantly am killing running process and they are always reloading (voice input, settings, gmail, market, etc), will this drain my battery faster? I'm at 76% with light use from a full charge and the phones been unplugged for around 4 1/2 hours.

That seems normal. mine usually dies within 6 hours, with all settings off. i think i need a new one. under battery settings it says display used 67 % of my battery life and for display time on it says 28 minutes

I've got my display using 73% followed by live wallpaper with 6%.

I mean Display% being higher just means you were actively using your phone more... or you set your timeout too high.
I don't think the actual restarting of the apps uses more battery vs them just running in the background all the time. Unless for some reason they restart almost instantly and you are constantly mashing the kill all apps button then maybe?
As far as your phone dying in 6 hours, that does not sound right at all. Mine definitely goes quite a bit longer than 6 hours consistently. It is currently at 38% battery after 17 hours 24m, with display having used 46% with 55m24s on. Part of that was while it was full brightness when I was outside. I have been at work though so its largely been sitting on my desk. Even when I first got it and was playing with it a ton it went well over 6 hours on a charge.

Some people do seem to have problems with battery life and I can only assume there's a bunch of bad batteries out there, or they are really hammering it..
I used about 25% in 6 hours today from normal usage* and that's even after driving around for half an hour streaming last.fm over bluetooth via 3G.. Sync switched on, wifi off, twitdroid running in the background. The only special thing I have is the setcpu idle tweak.
* Fair bit of browsing, some twitter, the usual 'ooh look you have a google phone' impromptu demos..

battery life

Hei all of you
It seems that the legend has been released to some people, and i was wondering what you guys get out of the battery.
I am currently on a Diamond 2, with 1100 Mha battery, and currently get 1½ day out of this, and i want this to be an improvement. The legend, with 1300Mha, OLED screen and newer cpu, sounds like it will be a lot better, but some review mentions the battery life to be really bad.
I am using my phone for 20 text messages, psuh mail, no phone calls and only visit a few websites on 3G. No bluetooth, wifi or GPS. What can i expect of this?

i'm sorry if my English is not good enough,
but i've the HTC legend since Friday, and Saturday i did a simple test, i put the mobile phone to charge Friday night, Saturday about 12:00 pm i disconnected the charger and i've turned the wi-fi, gps,and bluetolth off, only the 3G network was on.
I had also ebuddy running on the background, after 4 hours i didn't touched the phone, and my battery was about the 25%
And the full charge time was almost 2 hours.... i went back to the shop where i bought the phone, they changed my battery and the did a hard reset.
The battery performance is now a little bit better, but it has not the same performance as the iphone 3gs.

Luinwethion said:
i'm sorry if my English is not good enough,
but i've the HTC legend since Friday, and Saturday i did a simple test, i put the mobile phone to charge Friday night, Saturday about 12:00 pm i disconnected the charger and i've turned the wi-fi, gps,and bluetolth off, only the 3G network was on.
I had also ebuddy running on the background, after 4 hours i didn't touched the phone, and my battery was about the 25%
And the full charge time was almost 2 hours.... i went back to the shop where i bought the phone, they changed my battery and the did a hard reset.
The battery performance is now a little bit better, but it has not the same performance as the iphone 3gs.
Click to expand...
Click to collapse
I think the first time you run your phone it will consume the most power. So it's not the right time to test. I suggest you fully charge and fully consume the battery 2-3 times and then put it for a test.

Full capacity of a battery shows up after 2 months.
You will pass from 1 day to 3 days

So here is one short statistic after second charging.
14% of energy left in the battery after:
39 hours since last charging
2 hours of display on (35% of energy)
37 hours of phone connected to the cell (36% of energy)
13 minutes of calls (13% of energy)
Phone used for me "as normal" - cca. 10 SMS, 2 hours of mp3 and FM radio, one hour of net surfing, running sync with Gmail and Google Calendar.

Yes, it is period of 1-3 months to get full capacity of the battery, but in first few usage, you can fully charge and discharge battery.
I have a one day of full usage of the phone (wifi always on, twitter, e-mails, calls etc.)

Getting better
It's getting slowly better with each charging, second week and I'm on two days. Everyone is using it in a different manner, but my battery improved for about a 70%.

got the legend now for 2 weeks and loving it.
Battery life is good, don't expect to go 2 days intensive use without recharge but no phone with these function have this.
I can easily go with one to two day with occasional wifi, gps use and keep 3g or sync on settled on 1 hour intervals while playing some games using apps etc
Blue tooth i haven;t tried but like any phone the power munchers are wifi, blue tooth gps and 3g.

wifi should save lots of power compared to network operator connection
i use wifi at office, and with extensive usage, i can get about 8 hours straight, that is pretty heavy, the screen barely got to sleep

I have tested the battery in plain sleep.
If the device has wifi off and mobile data off (and no sync, ofcourse) i guess it lasts for a week - 10 days. But then you cant use wifi or mobile data.
If you only let it be in stand-by (screen locked and off, no data or wifi or gps or bt) it last quite long, probably close to the stated 300-400 hours in the manual.
In real life that translates to 3-5% battery drain (tested by me for 24h, only sent 2 sms and talked on phone for 2 minutes) per day.
But in normal use, wifi will drain 5-10% battery per hour and 3g/gprs with autosync drains 2-5% per hour depending on net.
No device lasts for more then a day or two if you acctualy use the device.

I have had my Legend for a week and a half now and the battery life is also getting better with each passing day. I can easily use it for a day and a half with quite a lot of WiFi browsing, and up to 30 or 40 minutes of call time. I'm really loving this phone!
Sent from my HTC Legend using the XDA mobile application powered by Tapatalk

Hi fellow Legenders,
i've had the phone for 4 days now. i am having issues with my battery. I have noted some points that i'll share & hopefully find a resolution for my dismal batt life. I have bluettoh on all the time, but it shows very little drain based on BT alone. Other than that, this phone ROCKS!
After full 8hr charge, the phone lasted approx. 13hrs 38mins before reaching critical level with the following findings:
On 08 April 2010
1. Voice calls used 50% batt – 36mins 11s call time.
2. Display on approx. 30% brightness used 21% batt – on for 1hr 10mins 15s
3. Cell standby on 3G used 16% batt – on for 13hrs 38mins (no signal 1%)
4. Phone idle used 8% - on for 12hrs 28mins
5. Bluetooth used 5% - on for 13hrs 28mins
After normal charge till batt 100% (about 3hrs), the phone lasted 15hrs 12mins 41s before reaching critical level
On 9th April 2010
1. Cell standby on 2G used 50% - on for 15hrs 12mins 41s (no signal 3%)
2. Display on aprrox 30% brightness used 18% - on for 29mins 35s
3. Phone idle used 15% batt – on for 14hrs 43mins 5s
4. Voice calls used 10% batt – on for 4mins 14s
5. Bluetooth used 7% - on for 15hrs 12mins 41s
Looking forward to better batt life as the days go by.
cheers,
Su

Very poor battery life for me.It has 7-8 hours stand-by.
1.Every 5 mins e-mail control.
2.Weather with auto update.
3.Friend stream.
4.Background data and auto sync.
5.Enable always-on mobile data
6.3G
I don't understand whats going on.If i left device when i go sleep with full battery after 7-8 hours i look it.It shows me only left %35 battery.
After disable all auto-uptade and 3g its over 1 days.
My hd2 had 1230 mah battery and super big screen and 1ghz processor.It was using %10 with same usage.
Legend has 1300 mah battery and small screen and 600 mhz processor.It uses %65.
Can anyone explain this sucks status?

I m using the legend... and a hd2 as my other device. would say the battery life for the legend is really dismal...
Sent from my HTC Legend using the XDA mobile application powered by Tapatalk

I am happy to report that my phone batt life has improved tremendously since my last charge. I installed OS monitor & checked to see what might be hogging the batt, & discovered some program was keeping my CPU running inthe high 70's & above continuously. I killed that program, fully charged my phone till 100%, restarted the phone for good measure, & with BT on permanently, more than an hour of wifi usage, about half an hour of phone calls & about 30 smses, after 24hrs, i still had about 24% batt left.
So it has definitely improved by leaps. Hope that helps others who have similar problems.
cheers,
Su

it will be good if you can share what's causing the high cpu usage ...

Oh sorry i forgot. it was OpenWatch for BT watches. It has a problem currently with HTC Legend & SE MBW-150. It doesn't have the full functionality as yet for some reason. The reason it ran the CPU load up, was because i had turned off my watch by accident & set the program to search & connect to the watch. My folly really.
cheers,
Su

After three weeks of use:
10h 52m since unplugged - still at 50% of battery
- Display: 49%. Time on: 1h 46m. Auto-brightness, mostly indoor
- Voice calls: 31%. Time on: 22m 53s
- Cell standby: 12%. Time on: 10h 52m
- Phone idle: 6%. Time on: 9h 6m
- Maps: 2%. (played with maps for a couple of minutes)
Gmail/Contacts/Calendar/Weather sync is on
GPS on (almost didn't use it)
WiFi off
Mostly in area with good 3G coverage.
Actual usage:
- Phone calls
- Some internet browsing
- Some chatting via Google Talk

Nice battery time
I've bought and charged my phone last Thursday. GSM only, using WIFI every day for 15-20 minutes, 10-15 min talk, and it's still at 35-40% after 5 days. I've got a magic battery or what?

Chapell said:
I've bought and charged my phone last Thursday. GSM only, using WIFI every day for 15-20 minutes, 10-15 min talk, and it's still at 35-40% after 5 days. I've got a magic battery or what?
Click to expand...
Click to collapse
I can't believe this . I wanna just 24 hours stand-by.I hate to charge it everyday two times.

Battery Life??

Hi Guys! and Gals..
Wondering hows your battery life?? Can you make it through a day Ok? I have a touch pro on Sprint and battery life stinks in the worse way.

Last time I checked, it went 13hrs until 31%.
I usually use it for around 90minutes continously reading or web browsing during my commute. There is also 4-5hrs (or more daily) during which I only get 1-2bars of receptions, so it drains battery faster. There was probably also a 30-40minute phone call using bluetooth.

I can go an 10-12 hour day with light use:
45 mins of phone and text (no bluetooth)
20 mins phone (bluetooth)
30 mins misc.
30 mins games.
20 texts.
Data on about 8 hours without Wifi and 4 on (N enabled)
1 hour browsing, emails etc.
30 mins with Microsoft Reader.
Probably a little more.
Also syncing a lot with calendars.
Not bad, but I feel like it could be better.

t-mobile usa.
I have 75% by end of the day

Adjust your PEAK TIMES for ActiveSync, that way your device isn't consistently trying to allocate resources to collect data such as emails.
Screen brightness, system volume, hibernating times, etc.
ALL OF THOSE are key factors in how quickly your battery will be drained. Anything involving the on-screen display is what will quickly deplete available battery life on a single charge. That may seem very "cliche" to say, but the fact is, this device has a 4.3-inch screen, so it's a power hog.

For today, it's been 17.5hrs since I unplugged and the phone has been mostly sitting except for a few occasional brief checks of the phone, 30minute email syncs, and a 15 minute phone call. It's at 40% battery after the 17.5hrs.
It did drop around 20% in the first 6hrs since the phone was in an area of horrible 0-1 bar reception. The rest of the time has been 2-3 bar reception.

17.5 hours @ 40%... are you serious?
My TMOUS HD2 has never gone more than 8 hours on a full battery charge. This is with "normal" usage. Regular email checks, activesync with direct push.
Comming from the Blackberry Bold II with 13-15 hours of battery under normal usage patters, the HD2 is VERY WEAK!!!.
I'm contemplating sacraficing the sleak look of the phone for the extended battery.
Anyone have the ex battery? How's your battery life?

Canecraze said:
My TMOUS HD2 has never gone more than 8 hours on a full battery charge. This is with "normal" usage. Regular email checks, activesync with direct push.
Comming from the Blackberry Bold II with 13-15 hours of battery under normal usage patters, the HD2 is VERY WEAK!!!.
I'm contemplating sacraficing the sleak look of the phone for the extended battery.
Anyone have the ex battery? How's your battery life?
Click to expand...
Click to collapse
If you need direct push in your life, then I suggest changing 3G to EDGE network.
Difference is quite noticeable.

It sucks,and if you want better battery life don't use it.I returned mine after 48hrs.
All the advice is great,but....
-If I have go from 3G to EDGE.
-Lower the brightness almost to the minimum.
-Set activesync up.....What is the point of having so much technology? if I can not use because the phone dies.
I need real time email and 3G to work,plus all the stupid menus that windows mobile still has made me change my mind.Microsoft has been in the market for a bunch of years and winmo still sucks.
Do not get to impressed with the HD and the movies,cause the thing dies in no time.
Don't buy it and stick with android.

I end the day with about 60% battery life left with mild-medium usage. A few phone calls, some maps/gps, active sync every 4 hours, facebook every 2 hours, weather every 3 hours.
VERY happy with battery life on this phone

i went all day yesterday (my first day with it) so i used it alot, took it of the charger, at 7:30am, and plugged it in last night at 10:00 and it was at 39%. that was BEFORE i turned off 3g(i dont get 3g in my area) so this hd2 blows the iphone battery out of the water....IMHO

my last device was blackberry 8900.
that thing lasted 3 days with moderate use. compared to that, 15 hour limit does suck, and there are times I don't want to use the phone to conserve the battery, which makes rage, but oh well. now I always carry an extra battery in my pocket, so that's a bit better. but that doesn't make it okay.

with the 3g off, wifi off, auto back light,running the energy rom apr 9. unplug on 9 am use about 100 sms and 10 minutes phone call with all the auto data off,just manual check weather and email twice still have 80% after 3pm.

turn off voice commends - this will help

Its getting better
I have recently done a few things to help the battery. I adjusted the the screen brightness to a comperable setting that a friend of mine has his set to on his iphone3gs I did not do anything to the 3g settings or anything like that. I set me email to sync every 4 hours. But my hotmail I just click send/receive and sync it myself. I play music all day on my phone. Check twitter internet facebooks while music is playing and a lot of texting over a hundred sent and recieved daily. Before I made a few tweeks it would kinda die quickly but now it appears to be a lot better.

My batter DOES NOT LAST FOR CRAP!!!!! I took it off charge at 8:13 and at 10:30 i checked my phone, it went from 100 percent to 81 percent. HOW DOES IT GO DOWN 19 percent in 2 hours when i didnt even USE the phone, i just hit the backlight to check the time, this battery is unacceptable everytime i check the phone the percent has dropped

NYCHD2 said:
My batter DOES NOT LAST FOR CRAP!!!!! I took it off charge at 8:13 and at 10:30 i checked my phone, it went from 100 percent to 81 percent. HOW DOES IT GO DOWN 19 percent in 2 hours when i didnt even USE the phone, i just hit the backlight to check the time, this battery is unacceptable everytime i check the phone the percent has dropped
Click to expand...
Click to collapse
Do you leave 3G turned on? Do you have your e-mail and/or weather checking themselves automatically?
The phone can certainly be doing things that consume the battery, even if you're not manually handling it at the time.

I don't understand why battery life seems to differ so much from phone to phone. My battery life is excellent and I use it a lot. I do have to charge it every night but I expect that from a smartphone. It always lasts me throughout the day with music, videos, calls, texts and web use on 3g. I couldn't be happier with the battery life of my phone.

PLEASE give me good tips how to save battery? BTW im using ENERGY's latest rom with cookie 1.7. i dont understand why i have to stop my email and turn off 3g when this phone is MEANT for these features. theres no point of a having an excellant phone when you cant use its features to its full potentiol without having it die within 10 hours( with moderate use)

Battery is weird
The other day i charged my hd2 fully then got on an airplane all connections were watch from paris with love which looks great on the phone landed after an hour and a half and my battery life was down to 15 percent i think i might have a bad battery when i am in the car i leave it on the charge and when i am in the hotels that i stay in it stays on the charge or plugged into my laptop and thoughts??

Battery Thread

Hi guys, can you post battery stats, including Screen On Time?
Thanks.

My first drain from 100% = ~22 hours of life with over 4 hours of SOT. Qualcomm Quick charge will have me back in 96 minutes. Pretty impressive for such a little phone.

Lasted a whole day about 20 hours until I reached 4% before I charged it again. Only
25 min of gaming
30 min video
45 min phone
3 hours use on internet
7 hours of calc player , Howard stern
Wi-Fi on all time
Display settings on default
No power saving mode
I'm impressed
The day after when I installed more apps it's more noticeable to see drain from certain apps that constantly use push notification like slickseals

First drain from 100%.
SOT around 3 hours
Automatic brightness
WiFi on 24/7, connected only when at home
Bluetooth on 24/7, also used with Android Wear
~5 hours of BT streaming (Play Music streaming over LTE)
7 Google accounts on Push
1 Outlook account on Push / 1 Verizon account on 2 hour Fetch (stock Email app)
Facebook / G+
Lots of apps installed...

Here is mine from today so far.
On pace for almost 6+ hours SOT.
I also have the Always on Display setting turned on.
https://drive.google.com/file/d/0B8_ESszeycXGQkY3MnNRTmFCX1E/view?usp=sharing

The battery has been really good so far. When I checked the first time, it last for 16-17 hours total and 6-7 hours of sot. I was reading, watching videos, and playing games. I'm satisfied.

Pretty good so far I think. Far better than I ever got with the s6

Just under 7 hours screen on time from the very first charge.

i usually get between 4-4.5 hours screen on time and i use bluetooth all day with my headset along with streaming milk music with some games.

Yesterday/day before :29 hours with 5 hours Screen on time
Today: 20 hours with 6.5 hours screen on time
By far the best battery life i have ever had on any smart phone

I'm happy with this. Location always on high. Bluetooth on all day with my s2 classic.

Auto brightness and regular data the whole time, not bad at all

No complaints

So far battery is pretty good

I've been pleased. Wifi Calling and VoLTE on. Location services/history on (WiFi and network, GPS off unless using maps). Auto brightness. Stock settings, a few apps disabled.

XxKINGxX2580 said:
So far battery is pretty good
Click to expand...
Click to collapse
I never thought I'd see the day... a Galaxy with 7 hrs SOT.:good:

This is my 5th full charge. Screen brightness at about 60/65%, Always On Display on, GPS on, not trying to preserve power in any way....

BigSK225 said:
This is my 5th full charge. Screen brightness at about 60/65%, Always On Display on, GPS on, not trying to preserve power in any way....
Click to expand...
Click to collapse
How is yours blacked out like that?

Best SOT I ever got. Doze kept it alive at the end lol

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 Z Fold 2'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'm seeing about 1-2% drop per hour when not on the charger. Still running default settings.
Sent from my SM-F916U using Tapatalk

Ongoing Standby battery drain test - minimal use..
After day 1
Standby drain is excellent! I took my Fold 2 off the wireless charger around 9am yesterday (Sunday 20th September) morning. I only used it to check and respond to messages, Instagram & emails and to briefly check news apps and a few other little things for a total of 47 mins screen on time. Mostly I only used the main outer screen but once or twice used the inner.
I only have the AOD to show when the screen is tapped, Wi-Fi & Location are on but currently Bluetooth isn't as I don't need it.
It is now 7:44am and it shows 75% and 1 day 13 hours left. Obviously it won't last that as I don't usually use my phone so little but it shows the standby drain is fantastic.
View attachment 5101305
Update: After almost 2 days! Standby drain is definitely excellent!
OK again with minimal use - short calls, checking and responding to messages, emails, Instagram and checking news and a few other bits, mostly on the smaller outer screen but moving to the big screen on occasion. I had 59 mins screen on time yesterday so a total of 1 hour and 46 mins so far in almost 2 days and the battery is currently at 48% with 1 day left.
The phone has been off charge since around 9am on Sunday 20th September. If I can keep this up we could see the batteries last at least 3 and maybe 4 days with minimal use.
This is not normal usage. I am trying to see how long it could last if needed and could force myself to use it less but I don't like leaving emails and messages unchecked/unanswered.
View attachment 5101927
Update: After almost 3 days! Wow just wow!
OK yesterday the phone got a little more use mostly on the smaller outer screen but moving to the big screen on occasion also Bluetooth was enabled for a bit whilst I was listening to some music while out and about. I had 1 hour and 26 minutes screen on time yesterday so a total of 3 hours and 12 minutes mins so far in almost 3 days and the battery is currently at 13% with an estimated 8 hours and 11 minutes left!
As mentioned previously, the phone has been off charge since around 9am on Sunday 20th September. If I hadn't used the phone as much yesterday I think it would definitely stretch to 4 days on standby & if you can manage to not use it at all it could stretch to 5 days maybe? But with a phone like this how can you not use it?
Again, this is not normal usage. I am trying to see how long it could last if needed and could force myself to use it less but I don't like leaving emails and messages unchecked/unanswered. Notifications are on. The only things not enabled are Bluetooth as, working from home, I am not using it at the moment and I rarely use NFC so that is disabled. Everything else I use is enabled with notification on, edge lighting for messaging apps and AOD set to display when the screen is tapped.
I have the Power Mode settings set as Optimised but with Adaptive power saving selected. At the current battery level it has changed to Medium power saving where it has disabled Always On Display.
View attachment 5102461

Sorry to double post but updating a post initially started a couple of days ago doesn't show as updated on the post overview screen so it's dropping down the list of threads.
Please check my post above. I have managed to get 3 days out of the battery so far by using as little as possible to test the standby drain and it still has some life left in it. This is after charging twice since receiving. The first to top off while setting up and the second on a wireless charger before this test. As the device gets used to usage and has a few charge/discharge cycles it could possibly get 4 to 5 days of standby with minimal usage. Although I have Bluetooth off at the moment I don't see the point in disabling too many features as then a smart phone isn't a smartphone.
As much as I want to see just how far this can go - maybe I could leave checking news/tech updates & test while kids are on half term so less calls and messages - this phone is too gorgeous to not pick up and play with and being a phone and tablet in one means it will get more use than my previous phones have.