Has anyone else noticed that since we can see battery stats now with the .21 update wifi is eating most of the battery even more than the display.
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Wifi Battery Drain
- Thread starter NuKeM4n
- Start date
Yea, battery is draining quicker compared to last Firmware. You can turn off WIFI during idle stage.. however, yea.. it's annoying.
yeah, i noticed this too. i even have wifi to shut off when sleeping and its still consuming 55% of the battery.
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Maybe they boosted up the wifi signal strength a lot to compensate for the infamous poor wifi signal with battery drainage as a consequence.
That is what I posted in the other thread. Only thing I can think of that makes sense.
Same here. My wifi has used 79% of my battery since last charge.
Can you point us to that other thread so we're not fragmented all over the boards?
The other thread was about the update generally:
http://forum.xda-developers.com/showthread.php?p=24228334#post24228334
Are you guys sure the stats are 100% accurate? I dont think that wifi actually sucks more juice than the display. Its the same on my Prime but its possible that the stats just arent that accurate. I have wifi set to disable when in sleep mode so i really dont think it makes sense that it takes up more than the display even in that setting.
Could be wrong though^^ My batterylife so far isnt really different than before the update - at least it doesnt feel different.
Could be wrong though^^ My batterylife so far isnt really different than before the update - at least it doesnt feel different.
my battery life is still the same, which is great. wifi being a battery drainer is nothing new. top 2 battery drainers isbthe display(how high you have it) and wifi. I have my wifi on 24/7. never cut it off and I still get great battery life. I tried that cutting wifi off during sleep setting but I hate it. it always takes the wifi connection a little will to come back connected once display OS activated again. so I just leave it on. another thing to check also is to cut your background sync times down. you don't need email be checked and sync every 5 mins. cut sync off on anything you know you don't use much. saw goes for app notifications also. I got tired of my Facebook going off all the time, so I cut it off. it'll just update when I open the app up. or doing a manual refresh.
WiFi drain seems to be a lot higher since the update.
I got slightly over 5 hours of surfing and messing around undocked last night. WiFi used over 65% of the CPU.
Sure I was getting closer to 8 hours before.
Running in balanced mode
I got slightly over 5 hours of surfing and messing around undocked last night. WiFi used over 65% of the CPU.
Sure I was getting closer to 8 hours before.
Running in balanced mode
I have noticed a huge difference. Last week my prime would only lose 2% battery over night. I updated and haven't changed any settings. Now it drops roughly 40% over night... I'm not happy to say the least. I'll try turning wifi off tonight and compare the 2 settings.
(By the way, I'm rooted and stock everything else)
Glad I am not the only one. I just got my TP a week ago and updated to .21 and sure notice that battery life has been awful. Using it for web browsing, loses 10% in about 40 minutes. And turned off seems to drain the battery as well, more than before the update.
Sent from my Transformer Prime TF201 using xda premium
Sent from my Transformer Prime TF201 using xda premium
I do not have drain over night.
I charged it full, and after 9 hours in stand by, battery was 99%
BUT the BlueTooth draines the battery when the Prime is in use.
The settings suggest to turn it off, if you do not need it.
21WW seems fine for me about the battery usage otherwise.
Do not expect the usage they were talking about in the specs.. it's not true!
I charged it full, and after 9 hours in stand by, battery was 99%
BUT the BlueTooth draines the battery when the Prime is in use.
The settings suggest to turn it off, if you do not need it.
21WW seems fine for me about the battery usage otherwise.
Do not expect the usage they were talking about in the specs.. it's not true!
WiFi analyzer shows no difference in signal strenght, and my Prime has been RMAed at ASUS and had changed parts (WIFI/BT issue), it did not help either.
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Hey everyone,
I tried searching on here but couldn't find anything similar. I thought I'd post here as its battery related.
For a start, my Prime is completely stock with the .21 firmware. Earlier today I noticed my Prime battery monitor hadn't gone lower than 93% for AGES! When I went into Settings - Battery, it said 93% Unknown. I obviously guessed it was a lot lower than that as I had used it a fair bit most of the day. I was using it about 2 hours ago and it suddenly switched off. I guessed it had run flat so I put it on charge. I've just tried to switch it on and nothing!!! It's been charging for a good 2 hours or so.
Any ideas??? I've had it less than 2 weeks!!! :-(
Thanks in advance.
Sent from my HTC Sensation XE with Beats Audio using XDA
I tried searching on here but couldn't find anything similar. I thought I'd post here as its battery related.
For a start, my Prime is completely stock with the .21 firmware. Earlier today I noticed my Prime battery monitor hadn't gone lower than 93% for AGES! When I went into Settings - Battery, it said 93% Unknown. I obviously guessed it was a lot lower than that as I had used it a fair bit most of the day. I was using it about 2 hours ago and it suddenly switched off. I guessed it had run flat so I put it on charge. I've just tried to switch it on and nothing!!! It's been charging for a good 2 hours or so.
Any ideas??? I've had it less than 2 weeks!!! :-(
Thanks in advance.
Sent from my HTC Sensation XE with Beats Audio using XDA
cold boot. hold down the power button and the volume down button until you see the text on the screen, then choose boot without wiping your data.
Since last update I get more than 20% / hour of battery drain doing web browsing at 50% screen brightness ... it was way better from what I remember when I was on .11 and .15 ...
Tried cold booting, will see if that makes a difference ...
Well after charging all night it did switch on as normal again. But today the battery has stopped at 93% again. Going into Settings - Battery, its says 93% Unknown again. :-(
Sent from my Transformer Prime TF201 using XDA
Sounds like your batterystats.bin file is corrupt. If you are rooted then navigate to /data/system/ and delete batterystats.bin
Reboot and Android will create a new version of this file and hopefully it will display stats correctly.
I am running .21 in power save mode. I have noticed the following. Using OS Monitor I found that "System" process was using 65%+ CPU resource all the time. So I turned off/stopped as many things that I could no effect..accept..un-mounting my SD card.
Once I un-mounted my SD card the "system" process time dropped to less than 10%.
Since then my battery has only dropped 7 points in 14 hours..based on my "Battery indicator" app.
So why would my SD card eat up battery life by consuming CPU time???
Once I un-mounted my SD card the "system" process time dropped to less than 10%.
Since then my battery has only dropped 7 points in 14 hours..based on my "Battery indicator" app.
So why would my SD card eat up battery life by consuming CPU time???
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