Related
Basically, when I leave wi-fi on my phone has incredible battery life. If someone has already mentioned this feel free to bury this post, but to my knowledge it doesn't seem this has been posted yet.
With wi-fi off and 3g on
- Battery lost 5-6 percent per hour
Wi-fi on
- Battery lost 1-2 percent per hour (sometimes less than 1 percent depending on what your doing)
Right now after having my phone on for 34 hours my battery is still at 70 percent! I'm fairly certain this is because it disables the 3g radio altogether which apparently is a real battery hog. That or maybe my phone is just a fluke. I really don't know.
This also seems to be tied to the htc sense rom (correct me if im wrong) but if i remember correctly battery drainage increased when wifi was enabled in the stock rom. Currently, I'm using the latest htc sense rom from modaco, I'd really enjoy hearing if enabling wifi helps others extend their battery life.
your having better battery life with the Desire ROMs? that odd, my battery life with a Desire ROM was 20-30% worse compared to stock.
amlwaycooljr said:
Basically, when I leave wi-fi on my phone has incredible battery life. If someone has already mentioned this feel free to bury this post, but to my knowledge it doesn't seem this has been posted yet.
With wi-fi off and 3g on
- Battery lost 5-6 percent per hour
Wi-fi on
- Battery lost 1-2 percent per hour (sometimes less than 1 percent depending on what your doing)
Right now after having my phone on for 34 hours my battery is still at 70 percent! I'm fairly certain this is because it disables the 3g radio altogether which apparently is a real battery hog. That or maybe my phone is just a fluke. I really don't know.
This also seems to be tied to the htc sense rom (correct me if im wrong) but if i remember correctly battery drainage increased when wifi was enabled in the stock rom. Currently, I'm using the latest htc sense rom from modaco, I'd really enjoy hearing if enabling wifi helps others extend their battery life.
Click to expand...
Click to collapse
Actually, it's a well known fact that 3G uses more power on most (every?) phones than Wifi... so you're not alone.
Hey when you say WIFI on..do you mean WIFI and EDGE or did you completely disabled the radio?
I never would have thought having wifi on would extend battery life to such a great extent though, in most of the latest cell phone reviews and what not everyone recommends to have wifi off saves battery life but in this case just the opposite is true. I kinda knew the wifi was more efficient but I never expected such a large benefit from leaving wifi on all the time.
@ram130 I haven't actually touched the radios at all so I expect them all to be on or at the very least have edge on, I am able to receive and send calls and txt so I'm assuming at least some cell radio has to be on. All I did was use the htc sense rom and enable wifi.
The cellular radio is still on, but 3G/Edge (data) are disconnected. I don't know how Edge compares to Wifi, but 3G is a battery killer in comparison.
uansari1 said:
The cellular radio is still on, but 3G/Edge (data) are disconnected. I don't know how Edge compares to Wifi, but 3G is a battery killer in comparison.
Click to expand...
Click to collapse
amlwaycooljr said:
I never would have thought having wifi on would extend battery life to such a great extent though, in most of the latest cell phone reviews and what not everyone recommends to have wifi off saves battery life but in this case just the opposite is true. I kinda knew the wifi was more efficient but I never expected such a large benefit from leaving wifi on all the time.
@ram130 I haven't actually touched the radios at all so I expect them all to be on or at the very least have edge on, I am able to receive and send calls and txt so I'm assuming at least some cell radio has to be on. All I did was use the htc sense rom and enable wifi.
Click to expand...
Click to collapse
In other words you have "use 2G networks" checked right?
I'm gonna try this is now. I'm currently at 3hr 32m unplugged with 80% left. I have wifi enabled and on the stock rom. So I'll post back when I wake in a few a hours and see how it goes.
My only problem:
Wifi seems to disconnect alot during the hour regardless if sleep policy is set to NEVER. My wifi signal is -78dBm to -86dBm in my room and on channel 11(used wifi analyzer). Any suggestions why?
I have the same experience at home, I enable Wifi and leave the phone stay home for a couple of days and battery still 40%, when I go out and wifi is not connected, 3G kicks in and battery drops much faster.
I'm using cyanogen 5.0.4.1
Interesting. Did not know this!
I guess I won't feel so bad about leaving my phone on Wifi all day!
Also, does anyone know how much power is used by not having a radio signal and letting it constantly search? That seems to destroy my battery. But sometimes I am in an area with wifi but no radio access (deep within a building).
It's too bad this phone doesn't have UMA - that would make up for T-Mobile's lack of indoor coverage (at times), and probably improve battery life a lot in some cases.
But I have to say that on another phones I've used, especially WinMo devices, using WiFi instead of 3G seemed to always use more battery. But, it could very well be different on this phone...I'm definitely going to give this a try.
im not sure about the percentage but i agree,the battery drain is considerably more when searching for radio.im in a building most of the day and it doesnt take long.miss the UMA i had on my bberry.
Paul22000 said:
Interesting. Did not know this!
I guess I won't feel so bad about leaving my phone on Wifi all day!
Also, does anyone know how much power is used by not having a radio signal and letting it constantly search? That seems to destroy my battery. But sometimes I am in an area with wifi but no radio access (deep within a building).
Click to expand...
Click to collapse
I also Get. About 25% better battery on wifi
Well after 10hrs of the phone being on stand by I woke up. It was at 46%!! my god. Anyway I checked my email, read an article all taking around 15mins and guess what? I had 30% left!. I put it back to stand by for 3hrs and took a look at it and had about 16% left...
It is now charging after one hour with just 10min use of downloading apps ..Can ANYONE tell me why my battery is draining so much on wifi? When its on EDGE for the night after 10hr I would have around 70% left from a full charge. Anyone can help me out here?
I shall be getting a replacement battery for free Tuesday.
Stock android.
ram130 said:
Well after 10hrs of the phone being on stand by I woke up. It was at 46%!! my god. Anyway I checked my email, read an article all taking around 15mins and guess what? I had 30% left!. I put it back to stand by for 3hrs and took a look at it and had about 16% left...
It is now charging after one hour with just 10min use of downloading apps ..Can ANYONE tell me why my battery is draining so much on wifi? When its on EDGE for the night after 10hr I would have around 70% left from a full charge. Anyone can help me out here?
I shall be getting a replacement battery for free Tuesday.
Stock android.
Click to expand...
Click to collapse
Did you set your phone to only use 2G networks also? If you're not charging, wifi will probably disable after not being used for a while..so it's probably rolling to 3G if you haven't disabled it.
I'm not saying it's convenient to constantly switch back and forth... but this explains why it may not be a good test of the battery life the way you're running it.
uansari1 said:
Did you set your phone to only use 2G networks also? If you're not charging, wifi will probably disable after not being used for a while..so it's probably rolling to 3G if you haven't disabled it.
I'm not saying it's convenient to constantly switch back and forth... but this explains why it may not be a good test of the battery life the way you're running it.
Click to expand...
Click to collapse
Well yes I have it on 2G only. Any thing else could be contributing to it dying so fast?
Well I found a way to use my laptop as an AP. So I connected my N1 to it and getting full bars(-41dBm) in my room now. No wifi disconnects so far!(maybe it was my linksys before ?).. So far the battery is at 86% with some 3D games, been unplug for 1hr 50min now. I'll put it to stand by now and see how it looks after 10hrs.
I'm on a stock firmware(not rooted). 2G only selected.
The way I understand it is as follows:
Phone is on STANDBY:
3g==2g* which are both more efficient then wifi (that's why the default wifi policy turns wifi off if it's not being used)**
Phone is ACTIVE:
wifi is more efficient then 2g/3g because:
1) It's waaay faster and thus causes less battery drain* and
2) The AP (router) is much closer to the phone then the cell tower so in theory it doesn't need to use as much power to talk to the router.
*http://code.google.com/events/io/2009/sessions/CodingLifeBatteryLife.html
4:45min into it there is a power usage chart and 3G/EDGE idle power usage is about the same - also somewhere else in the video they talk about wifi vs 3g usage when transferring data.
** http://code.google.com/p/sipdroid/wiki/NewStandbyTechnique
States that 3g standby is more efficient then wifi
drak0 said:
** http://code.google.com/p/sipdroid/wiki/NewStandbyTechnique
States that 3g standby is more efficient then wifi
Click to expand...
Click to collapse
Someone needs to test this ok. ...already testing wifi
Ok I'm at 11hrs 30min on wifi and its at 67% with light usage(checking email, news for 5min)..improvement? kinda, because since turning off my laptop it switched back to getting low signal(-81dBm) from the router in the next room. Weird? I'm still thinking. anyway I'm heading out so gonna use the phone more today, lets see if it gets me through the day.
Still no where near the thread starter 30hrs!! Maybe stock really sucks? bad battery anyone??
@ram130 I'm not sure how my battery is lasting as long as it has so far. I'm up to what would be an insane number, 65 hours 36 percent left .. this battery just wont die. I haven't the slightest idea how it's lasting this long I just leave wifi on all the time and turn wifi standby off. If anyone could explain how leaving wifi on more than quadruples my battery life I'd sure love to know.
at work today i guess i had a bad signal and i noticed i lost over 20% in less than 8 hours. whats the cause of this and is there a fix? i also notice the phone runs like **** on a low signal, very sluggish even when overclocked.
More power is bein pumped into the radio to keep the signal strong(er). Airplane mode is your friend. As for being slow, I don't know why but I also experience slowness in low-signal areas.
abcdfv said:
More power is bein pumped into the radio to keep the signal strong(er). Airplane mode is your friend. As for being slow, I don't know why but I also experience slowness in low-signal areas.
Click to expand...
Click to collapse
must be an android thing because i never had this happen with winmo or my palm pre.
Turn off 'Background Syncing' in Accounts & Sync settings. That will greatly improve both your battery life and phone slowness in low-signal areas. I have terrible signal in my work building too (would almost completely drain my battery in an 8-hour day), and ever since I started turning off Background Sync while at work, my phone only drops to around 50% in a work day.
I really think it's more the syncing that sucks the battery down in low-signal areas, not the radio having to broadcast stronger.
I have bad signal strength at my house. I also have a Airave to make up for this however since it does not provide 3g my battery will drop like mad when I am home.
The fix for this in my case is to turn off my mobile network when I get home that way I can still receive calls and texts but it basically tells the phone to quit looking for 3g signal and sticks to just the basics.
I then use my wifi while at home to get on the market or have my gmail and other apps sync with the phone.
Hope that helps you out and you find a solution that works for you.
I noticed MUCH moreso on CM6 vs. Fresh 2.3.3 what a significantly negative impact having background data enabled in a low signal area can have on the phone. My workplace is a consistently terrible cell area and since switching to CM6, I have been not only plagued with terrible battery life (like 10-15% per hour with minimal usage!), but the phone was running like absolute poo.
Today I checked to be sure and to my surprise, background data WAS enabled! I promptly turned that off and the phone returned to it's former CM6 glory and battery life returned to non-workplace goodness.
I have a bad signal at work, so I force it to roaming. It saves my battery and my phone is more reliable. Just be careful not to use too many minutes or too much data.
MrGreg said:
I have a bad signal at work, so I force it to roaming. It saves my battery and my phone is more reliable. Just be careful not to use too many minutes or too much data.
Click to expand...
Click to collapse
How do you set it to roam? Is this a setting or is there a code i can type in whenever I want it to only look to roam, then another when i want it to go back to regular, or even if i only want it to look for 1X or only look for 3G? One of the client sites i regularly travel to has great roaming 1X speeds once i can get it to switch to that but it must also have a weak roaming 3g tower somewhere because its always on 3g with one to zero bars.
I'm on Fresh though i'm apparently going to have to look into CM6 in the near future. I love this place.
Sent from my HERO200 using XDA App
ncadden said:
How do you set it to roam? Is this a setting or is there a code i can type in whenever I want it to only look to roam, then another when i want it to go back to regular, or even if i only want it to look for 1X or only look for 3G? One of the client sites i regularly travel to has great roaming 1X speeds once i can get it to switch to that but it must also have a weak roaming 3g tower somewhere because its always on 3g with one to zero bars.
I'm on Fresh though i'm apparently going to have to look into CM6 in the near future. I love this place.
Sent from my HERO200 using XDA App
Click to expand...
Click to collapse
You have a few options...
1. You are running Fresh on your Hero? Use the modded phone.apk from here: http://forum.xda-developers.com/showthread.php?t=745092
2. Use the PRL hack...you'll have to search for it, although I think the link is in the thread that I linked above
3. Download the app "Roam Control". Disclaimer, I am the dev, and yes it costs money.
4. Flash CM6.
Just recently stumbled upon an app called shutupbattery saver
It automatically kills your data when signal is low. You tell it what signal strength turns it off. Does wonders
Sent from my HERO200 using XDA App
markus_del_marko said:
must be an android thing because i never had this happen with winmo or my palm pre.
Click to expand...
Click to collapse
No..not really. I had several TP2 windoze phones since May of this year and went back to my Hero. The battery life on the RC1 build when you follow what has been said here,will give you way more life than any of the phones I have ever had.I was lucky to see 4 hours of life even with little usage with the TP2's. While my CDMA Hero does drop to 80% with everything turned on in 7 hours,it slows down considerably after that. Just with mild web crawling and 20 minutes of talk time it took well over 60 hours to drain completely last weekend after resetting the battery stats on mine with everything turned off. I actually had to use it non stop for 4 hours to drain the thing so it would shut off and be drained. Any phone I have ever owned has always done better after letting them drain completely and then charging them to 100% a few times. We have 4 of them in our home,and mine last longer than any of the others..the other 3 are stock 2.1.6 roms.
Mac
Why are people complaining about losing a measly, small 20 percent of battery in 8 hours? I'd understand if it was 35 percent or more, but seriously? you're complaining becuase your battery can last 40 hours? Wow...
CM6 RC1 with collin_ph battery tweak rules the world.
what i do to save my battery i change the settings on my advance task killer Menu>settings>Auto kill level(crazy)then also change Auto kill frequency(when screen off) and that really seems to help me
You could also look in to JuiceDefender. It shuts off 3g when screen is locked, turns it back on for either 1 min every 15 mins or 2 mins every 30 to sync.
jerry43812 said:
Why are people complaining about losing a measly, small 20 percent of battery in 8 hours? I'd understand if it was 35 percent or more, but seriously? you're complaining becuase your battery can last 40 hours? Wow...
CM6 RC1 with collin_ph battery tweak rules the world.
Click to expand...
Click to collapse
not everyone runs the froyo rom. at least i won't until a sense port comes out. and yes when the phone has a low signal it runs like absolute ****.
I'm having this problem also on CM6. Unplugged my phone this morning, full charge. Went to the gym at 11:30 and worked out for an hour and a half. There is no signal in my gym. The phone was completely dead when I got back to my desk. So basically the 80% battery drained in 1.5 hours (assuming I lost 20% between 7am and 11:30 when I went to the gym) It was not nearly this bad on the stock ROM. I just insggtalled collin_ph but I doubt that will help in this scenario. I might just have to remember to put it in airplane mode before going to the gym.
My bigger worry is when I'm out riding my road bike in the country. If I'm in the middle of nowhere, the battery will drain FAST... and thats the place I'll likely need to call someone in an emergency.
In my opinion there are key steps to insure a good battery life I perform this process every time I turn my phone on for daily use
First in settings/wireless/mobile networks I turn off data also roam and I change the signal to home only then in account and sync I turn off automatic sync and back ground data also i make sure that wireless is off as well then I turn my attention to applications and I clear data and force close any running program I'm not using for example gmail e mail browser Google search blue tooth I only force close apks that I know wont affect the system and how it runs also I should mention that this is done after I had calibrated my battery also I in spare parts I choose to make my end button put my phone to sleep these two steps are only done once now back to the process I run the over clock widget with dead3nce 9/14 stable kernel but also with every stable release he has put out I set the feq to 710 Max and 710 min and diff feq when screen off with 384 Max and 245 min this setup gives me high performance and long battery life I get 14 plus hrs with heavy use before ill hit 50% so u can imagine with moderate use will b or even standby time so I basically kill my phone if I'm not using it its in what I think is its lowest power state that I can get it at but its still on and ready so wen Im ready to use it I activate it and turn on what I need when I'm done I kill it again short of turning it off just thought I put this out in case it helps also I'm running cm6 rc1 and the 8/22 nightly I switch back and forth because of themes but the process is the same and so are my results so hope this helps good luck
Sent from my HERO200 using XDA App
It's 3G. Turn off your Mobile data when you going to be in an area with a bad signal for a long time.
As someone else said the collin_ph battery tweak works wonders too.
So for the past week and a half my G2 battery started draining super fast and it seems that the cell standby is the problem.
If I reboot the phone and have it on for 10mins cell standby time will show time on being 20mins. How is it searching for a signal an extra 50% of the time when it hasn't been on?
Also it will show that I have been without a signal for 50% of the time the phone has been on when I've never lost signal at all.
So the point of this thread is to see if I have a defective device so I can get it replaced. If anyone can help me out and post their Cell Standby times and Time Without signal percentages after a reboot and/or after a days use I'd greatly appreciate it. Thanks.
I'm glad I'm not the only one that had that problem. I had literally the EXACT same problem you are having, and exchanging my phone for a new one fixed it. My cell standby with that phone was in upwards of 79% and averaged 50% without a signal according to that screen. The new phone sits anywhere from 14-40% cell standby, and although there is definitely something wrong with how the radio on this handles signals, I don't get dropped calls anymore and it spends 0% of the time without a signal.
Another problem I had, and am still having, is that data connections just drop with no warning and I have to either wait forever for it to figure it out (there are no indicators of this status in the task bar, however nothing data wise will load) or put in in and out of airplane mode to reestablish a connection. I know plenty of others who have this issue as well and wonder if you do too.
Sent from my T-Mobile G2 using XDA App
I did some checking around with other people that have Android phones as well (not just the G2) and they do not have this problem either. The good news is T-Mobile is sending a replacement because this unit is in fact a defect. Thank you Gwanatu for posting.
Guys, can you tell me how to see this cell standby info? I got mine yesterday and the disconnects are starting to irritate me. Behaves identically to my Nexus, up arrow stays for a looong time, up to a min until it starts receiving data.
Still agonizing about replacing my Nexus, so if these disconnects are a G2 "feature" as well, then I'll just go back...
Thanks
Sent from my T-Mobile G2 using XDA App
fosormic said:
Guys, can you tell me how to see this cell standby info? I got mine yesterday and the disconnects are starting to irritate me. Behaves identically to my Nexus, up arrow stays for a looong time, up to a min until it starts receiving data.
Still agonizing about replacing my Nexus, so if these disconnects are a G2 "feature" as well, then I'll just go back...
Thanks
Sent from my T-Mobile G2 using XDA App
Click to expand...
Click to collapse
Settings>About Phone>Battery Use>Cell Standby.
A T-Mobile rep told me they are using new/different type sim cards for smart phones and that could be a possible issue if you are using an older one. Mine was about 5-6yrs old.
My cell standby is at 58% and time witout a signal is 50%...
Did a quick google search and found the airplane mode trick
1. Plug in phone charger
2. Put phone in Airplane mode
3. Put phone to sleep for a minute
4. Turn off airplane mode
5. Unplug phone
I did this and now my cell standby is at 14% and time without a signal is at 3%
fwiw my cell standby is 21% since last reboot days ago.
I do not have php and it is well past 15 days...airplane trick no longer works...still sitting @ 41% cell standby...don't know what else to do
Sent from my T-Mobile G2 using XDA App
Does any one think a factory reset and training the OS would help?
Sent from my T-Mobile G2 using XDA App
ive noticed the cell standby % being higher than it was on my nexus one. cell standby is typically the highest % item in my battery use list (my nexus was always the damn screen sucking up power). if i click it it shows the % time without a cell signal. for me, its always been 0% whenever i check so im not losing signal ever it seems. my battery life is actually quite awesome with this phone so it doesnt seem to be affecting anything really. maybe it has to due with the fact that this phone's SoC is a smaller fabrication and more efficient? that might make other stuff appear to use more power compared to older phones that had less efficient SoC's. just a thought
I just in stalled Screebl lite app. Basicly keeps the phone from going off. Once installed my cell standy by went from 37% to 12%. Can any one else confirm the same results?
Sent from my T-Mobile G2 using XDA App
My cell standy was running at 60+% with no signal running 50%. I did the online chat with Customer Care, and she ended up saying they were going to replace the phone. Funny part is that during the troubleshooting, I pulled the battery for a few minutes, and since then, cell standby has been 39%, with 0 lost signal time. I don't know what that did, but battery life has increased a ton. And a replacement is on the way...may try it for a few days, but this is working fine, so not sure I am going to exchange.
my battery is dropping like mad recently, no matter which rom I use, JVK JPG JPK, all the roms that is known for good battery life, with various kind of modems.2G network taskilled everything before sleep, no gallery bug, no background data updates, not connected to wifi BT GPS, battery stat wiped, more than 3 times full cycle charge..I have done everything I could, the battery still drop like mad.I fully charge the device at 12am, took off the charger, the battery is 88% when its 8am..checked the batter use, cell standby 40+%, display 20+, phone idle 20+..no more and when I slide the menu, for nothing, just slide for fun, scroll the app drawer, see the apps flying, it drops another 1%..lol
I had no idea what is happening, maybe the battery is dead? but I checked the batter health it says good..should I buy a new battery or what
p.s.I had only 1-2% drop everynight back in a month time, but now... ... ... Is this some kind of hardware failure or battery's dead?
12% for 8 hrs is NOT that bad. I get around 1.6% drop per hr with Wi-Fi ON and push notifications.
Anyways, See if you have a Time without Signal entry under Cell standby. Keeping a phone in a low/no service area can drain the battery faster.
You should recalibrate the battery after each rom flash. I think there is an App somewhere in the forum which is really easy to use.
Sent from my GT-I9000 using XDA App
PhoenixFx said:
12% for 8 hrs is NOT that bad. I get around 1.6% drop per hr with Wi-Fi ON and push notifications.
Anyways, See if you have a Time without Signal entry under Cell standby. Keeping a phone in a low/no service area can drain the battery faster.
Click to expand...
Click to collapse
but the thing is I had only 1% drop using the same apps same setting last time.the battery drop like mad recently and idk why =(
johnsonxray said:
but the thing is I had only 1% drop using the same apps same setting last time.the battery drop like mad recently and idk why =(
Click to expand...
Click to collapse
Did you check for Time without Signal ? Maybe cellular reception in your area has deteriorated.
time without signal 0
PhoenixFx said:
Did you check for Time without Signal ? Maybe cellular reception in your area has deteriorated.
Click to expand...
Click to collapse
Or maybe just general poor reception in your bedroom? When I'm in school (a nice plain concrete building to prevent young software developers from ever finding joy in life) I have 1-2 bars of edge reception and my phone loses with data off around 1.5%/h.
Either that or your battery has lost capacity and you can fix the issue by buying a new one. My bet is on the reception.
nah not possible..I placed the device on the same spot everyday..back in a month time it constantly dropped 1-2% but now 10+%..its not about the signal or reception or what I guess..it may be due to the frequent flashings recently..anyway I just ordered a new battery..see if it works =(
theduckking said:
Or maybe just general poor reception in your bedroom? When I'm in school (a nice plain concrete building to prevent young software developers from ever finding joy in life) I have 1-2 bars of edge reception and my phone loses with data off around 1.5%/h.
Click to expand...
Click to collapse
I second that. In my basement lab at university, ~1 bar EDGE reception, 1.5%/h is not untypical
Is it searching for WiFi connections that is what used to drain mine when sleeping .
jje
JJEgan said:
Is it searching for WiFi connections that is what used to drain mine when sleeping .
jje
Click to expand...
Click to collapse
everything's off =)
Hold down your power button. Set data network mode to disabled.
I was getting 10-15% battery drain over 8 hrs of stand by with data network mode enabled.
Now with data network mode disabled (when I need it I just switch it on again) I get 1-2% drain for the same time period.
Sent from my GT-I9000 using XDA Premium App
Turn off all networks, including 2G (put your phone in to airplane mode) and leave it overnight. If the battery still drains the same then you can make sure it has nothing to do with 2G/3G/WiFi/BT or GPS.
BlackMY01 said:
Hold down your power button. Set data network mode to disabled.
I was getting 10-15% battery drain over 8 hrs of stand by with data network mode enabled.
Now with data network mode disabled (when I need it I just switch it on again) I get 1-2% drain for the same time period.
Sent from my GT-I9000 using XDA Premium App
Click to expand...
Click to collapse
no way..I don even have APN list how to have data network lol
PhoenixFx said:
Turn off all networks, including 2G (put your phone in to airplane mode) and leave it overnight. If the battery still drains the same then you can make sure it has nothing to do with 2G/3G/WiFi/BT or GPS.
Click to expand...
Click to collapse
well if its not about 2G/3G/WiFi/BT or GPS then what could possibly be the problem?
running apps or worn out battery
PhoenixFx said:
Turn off all networks, including 2G (put your phone in to airplane mode) and leave it overnight. If the battery still drains the same then you can make sure it has nothing to do with 2G/3G/WiFi/BT or GPS.
Click to expand...
Click to collapse
What is the point in buying a smartphone, if needs turning off everything?
I suppose your custom ROM is a wipe install
10% battery drain overnight seems to be fine. If you use background data and auto sync, keep on Wifi because that will do the job quickly.
Widgets are notorious battery drains, esp weather widgets. Remove all type of widgets from display. Change sync interval for facebook/twitter to 3, 6, 12 hrs etc... from 15min, 30 min.
Check sync interval for apps like Pulse, buzzbox, weather apps
Just a thought.. how about letting your phone completely discharge. When restarted, immediately flash to stock rom, allow that to completely discharge, repeat process several times (3 ideally) then load your custom rom of choice.
If it sounds absurd, I agree. It really does! However just remember, electromagnetic charge carries resonance memory, much like xrays. This old school trick is not often related to modern batteries, but have found it to increase battery life with several Android devices.
The main things are screen brightness and running apps. Your problem sound's quite normal even. Considered a secondary battery?
I think it is fine because if I use wifi (i.e. browsing XDA forum), it use ~8% for HALF an hour.
Anyway why don't just shut it down when you are asleep?
Sent from my GT-I9000 using XDA App
tt0204 said:
I think it is fine because if I use wifi (i.e. browsing XDA forum), it use ~8% for HALF an hour.
Anyway why don't just shut it down when you are asleep?
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
your battery dropped because you on wifi, at least, the thing is, I din even connect to BT wifi GPS, no task running in the background(taskilled before sleep) and it still drops 10+%..jus imagine if I had my wifi on overnight
Hey, I am trying to figure out why my battery drain is so high. Part of it is the display (trying to work on that too) but I see that my "phone signal" is quite bad. I have a feeling that this is draining my battery.
I have attached my battery stats. Do they look normal. And does the phone signal look normal or below normal. I think it is worth noting that I almost always have 4 bars of signal so I am not sure whats going on. I use my phone in Canada on the fido/rogers network (i believe it is the same as At&t in the states). Is there another radio I can flash or something if this is not normal (which will still work with my phone/network)?
Thanks a lot
Reports are that using 3G a lot drains the battery immensly.
Try switching to use 2G only and see how that affects your battery life.
Greetz
frutelaken said:
Reports are that using 3G a lot drains the battery immensly.
Try switching to use 2G only and see how that affects your battery life.
Greetz
Click to expand...
Click to collapse
I dont think it is worth it to pay $30 a month to use 2g networks. I will try to turn off the 3g radio when on wifi though. And maybe only turn on 3g when i need it. As for the phone signal bar. Is it the same or worse than what you guys are getting?
asb123 said:
I dont think it is worth it to pay $30 a month to use 2g networks. I will try to turn off the 3g radio when on wifi though. And maybe only turn on 3g when i need it. As for the phone signal bar. Is it the same or worse than what you guys are getting?
Click to expand...
Click to collapse
It already works this way. Wifi is going to be your best bet to lessen drain if available (both in standby and when using data - just make sure you have the sleep policy set to never).
If you have poor signal you are going to murder your battery - no way around it. The radio will boost power (Gain is adjusted automatically) in an attempt to get a better signal - and constantly search for a better one. So if you are bouncing between no service and 1 bar or even with just a weak 1 bar signal you are going to see atrocious battery life. There's not much you can do there except potentially switch to SIP in those times if you use a SIP provider.
If you are sitting with 4 bars then you should be seeing decidedly better battery life. What is the actual time the display was on in that screenshot?
I use 3G and its fine. What radio are you using?
the choices are: JK8, KB1, KB3, KD1
you can find them on the dev forums
asb123 said:
Hey, I am trying to figure out why my battery drain is so high. Part of it is the display (trying to work on that too) but I see that my "phone signal" is quite bad. I have a feeling that this is draining my battery.
I have attached my battery stats. Do they look normal. And does the phone signal look normal or below normal. I think it is worth noting that I almost always have 4 bars of signal so I am not sure whats going on. I use my phone in Canada on the fido/rogers network (i believe it is the same as At&t in the states). Is there another radio I can flash or something if this is not normal (which will still work with my phone/network)?
Thanks a lot
Click to expand...
Click to collapse
that looks pretty normal for that kind of usage. id say that you were a moderately heavy to heavy user.
krohnjw said:
It already works this way. Wifi is going to be your best bet to lessen drain if available (both in standby and when using data - just make sure you have the sleep policy set to never).
If you have poor signal you are going to murder your battery - no way around it. The radio will boost power (Gain is adjusted automatically) in an attempt to get a better signal - and constantly search for a better one. So if you are bouncing between no service and 1 bar or even with just a weak 1 bar signal you are going to see atrocious battery life. There's not much you can do there except potentially switch to SIP in those times if you use a SIP provider.
If you are sitting with 4 bars then you should be seeing decidedly better battery life. What is the actual time the display was on in that screenshot?
Click to expand...
Click to collapse
I usually have about 3-4 bars. The time on for the display was probably just over 2 hours (judging from what it is now).
zephiK said:
I use 3G and its fine. What radio are you using?
the choices are: JK8, KB1, KB3, KD1
you can find them on the dev forums
Click to expand...
Click to collapse
I have KD1, how does that stack up?
also, I am using netarchy bfs kernel if that matters.
simms22 said:
that looks pretty normal for that kind of usage. id say that you were a moderately heavy to heavy user.
Click to expand...
Click to collapse
I agree. you're a pretty heavy user So far different radio doesn't drain battery, but only the difference of data connection speed cap.
window7 said:
I agree. you're a pretty heavy user So far different radio doesn't drain battery, but only the difference of data connection speed cap.
Click to expand...
Click to collapse
Yes I do love android (been tinkering around since the g1). I do realize that I am a heavier user than the average person but it might also be that I recently got this phone so I am using it more.
Aside from that, does everything else seem normal?
"Android System" should not be taking such a high %. It should be about 1-2%.
There is (was?) a bug that causes high cpu usage (and shows as Android System) when wifi is on, but not connected to a network.
Another thing I can think of and is something I've experienced, is that sometimes you get an IP address from the mobile network that has a lot of noise, that is, it's an address someone has likely used p2p programs with and there are lots of connection retries. You can see it because the green arrows don't stay dark for more than a couple of seconds, and it kills your battery quite fast. Reconnecting to get a different IP address is the only solution...
Also, bluetooth may be a factor...
spamlucal said:
"Android System" should not be taking such a high %. It should be about 1-2%.
There is (was?) a bug that causes high cpu usage (and shows as Android System) when wifi is on, but not connected to a network.
Another thing I can think of and is something I've experienced, is that sometimes you get an IP address from the mobile network that has a lot of noise, that is, it's an address someone has likely used p2p programs with and there are lots of connection retries. You can see it because the green arrows don't stay dark for more than a couple of seconds, and it kills your battery quite fast. Reconnecting to get a different IP address is the only solution...
Also, bluetooth may be a factor...
Click to expand...
Click to collapse
Blutooth is always off unless I need to use it (which is rare). I am not sure how to make my mobile network connect to a different IP adresse, would turning it on and off do the trick?
Being in area where there is low/no signal also causes my battery drain to increase by a lot! Which sucks cos where i live i get either 1 or no bars of signal.