Hi, I live in a place where there's very poor network coverage and my SGS often looses signal. And here's the problem: when I check battery consumption in the settings I can see that the phone is often awake (for about 1,5 hour overnight) and looses battery like 3% an hour even when I don't use it and is supposed to be asleep. Is it possible that it is searching for available networks during that time and that is why it is awake and eats battery?
I do not have data on, nor wifi or gps. I'm running SLIM 3.3 with 0.67b Devil.
Thanks in advance.
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Have anyone noticed tremendous battery drain by just letting the phone accessible to data connection? I reflashed the entire firmware, did not install a single app, neither used the phone for anything. My device drains 7% of power in an hour by just idling.
However, if I use wifi only(sleep policy:never), I will have up to 80% remaining after a day of moderate use.
mengsuan said:
Have anyone noticed tremendous battery drain by just letting the phone accessible to data connection? I reflashed the entire firmware, did not install a single app, neither used the phone for anything. My device drains 7% of power in an hour by just idling.
However, if I use wifi only(sleep policy:never), I will have up to 80% remaining after a day of moderate use.
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Mine drains 2% within the hour. ... wifi and gps turned off.
Maybe try battery calibration...
http://forum.xda-developers.com/showthread.php?t=942596
Ever since I did the LG update from B to D and baseband to 405 I have had issues with my wifi. Two things,
1. After a while wifi looses my home WAN network and will only reacquire it if I turn off the wifi then turn it back on. This did not happen before the update. It occurs whatever wifi sleep setting I use. I am consequently using much more 3G data than before.
2. Wifi now uses ~50% of my battery usage. Overnight it chewed through my entire battery. When I woke I thought I had BSOD but instead my entire battery had been used.
Any ideas what the problem might be?
cheers
I am on the 0828 ezgingerbread. I have wifi sleep policy set to "never", because I need VoIP. This is a G1 with wifi on, sitting on the desk very close to the wifi AP, the battery drops from >90% to ~40% in 14 hours with almost no usage. I checked the battery usage and found "Wifi" used 60-70% power.
This is different from my previous experience with MT3G rom (froyo) also from ezterry, for that the battery drain was about half of that speed I would say, with wifi always on.
Do you also see the same high battery usage for wifi? Thanks!
I'm now with ginsense 2.3.7 from rushnees and i can tell you that it drains the battery.
As i know, wifi for a long-usage is better than 3G in the battery section.Ask to the developer about another kernel.
Wifi alway drain battery if you constantly have it on. If that how much the drain is, you are pretty good. My would drop to the point where I have to charge it.
I'm trying to figure out which idle setting is preferable.
xdadooder said:
I'm trying to figure out which idle setting is preferable.
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In my experience for my phone....Idle on wifi is always better....3G eats lots of battery...2G is still better...thats why some people toggle 2g/3g........
Agreed - wifi mostly good for power consumption purposes
sent from my uberclocled I896
xdadooder said:
I'm trying to figure out which idle setting is preferable.
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I've found that the biggest (idling) drain on my battery comes when the phone is constantly searching for 3G signal. If you have wifi available, use it.
I plug my phone in while I listen to podcasts on my commute into work. So when I get out of the car, I'm at 100% battery. If I put wifi on when I get to my desk, after 9 hours in the building, my battery is somewhere in the 78% to 85% range. If I leave wifi off, I'll be at around 50% to 60% at the end of the day. 3G signal isn't that strong in my building.
I've also been places with little-to-no 3G signal and no wifi. I lose around 20% to 25% of my battery per hour.
Anyone have issues with high Cell Standby? My cell standby is at the top of my list with "time on 8h 12m" (pretty much my entire time off the charger) and Time without signal is 0% (so i haven't lost connection plus I've been on Wifi at home the entire time)
Ive also only have about 52 mins of screen on time with light use and I'm down to 79%. The drain seems very high considering how I've used the phone. I just don't understand why the standby is so high or whats causing it. Im stock rooted and have r17 Franco Kernel installed, it seemed to have started when I installed the latest r17 but I'm pretty sure it would be a coincidence since the cell standby was always kinda high on my list but not as bad as lately.
Nocturnal86 said:
Anyone have issues with high Cell Standby? My cell standby is at the top of my list with "time on 8h 12m" (pretty much my entire time off the charger) and Time without signal is 0% (so i haven't lost connection plus I've been on Wifi at home the entire time)
Ive also only have about 52 mins of screen on time with light use and I'm down to 79%. The drain seems very high considering how I've used the phone. I just don't understand why the standby is so high or whats causing it. Im stock rooted and have r17 Franco Kernel installed, it seemed to have started when I installed the latest r17 but I'm pretty sure it would be a coincidence since the cell standby was always kinda high on my list but not as bad as lately.
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If you don't use the phone and keep it away, obviously the cell standby will come first but that much battery should not be drained. I can notice max 2-3% of battery drain from 100% over-night on stock
If you don't charge your phone up all the way to 100%, the battery stats don't reset.
Otherwise I think it's sounds reasonable.
8hr stand by, a little under 1 hr screen, wifi on the whole time.
That's about 9 hours total + wifi for 21% or 676.2 mah used. I usually run with a huge stand by time, not so much SOT. I get about 35%~ a day so I charge up every three days.
If you're on WiFi and cell standby is that high then you probably have a weak voice signal connection. What colour is it on your graph? You can also check your signal level in Settings > About Phone > Status