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Which is better for battery life? O have both good 3g and widow connection are work.
Will using wiring be better for battery or just 3g?
Sent from my SGH-T959 using Tapatalk
Yo.
3g = 3 - 5 MBits/s
WiFi = 10 - 120MBits/s
And yes we have WiFi N in our phone.
Do the math on how much longer 3g will last.
Sent from my GT-I9000M using XDA App
3G sucks down the most juice. It's just a fact. 2G will drain the battery less and if you have WiFi, your battery life will increase even more. I can leave my phone on overnight with WiFi on while sleeping and it will still have 80% when I wake up (5-6 hours)
Today was the first day I have ran wifi all day and I would say me battery use appears to be about the same as having 3g coverage all day. I would have figured wifi would drain more, but I haven't noticed a difference. Again this is just 1 day experimenting (I have my wifi set to never go to sleep with the screen off too). I have been connected to wifi 90% of the time. As a bonus wifi is a lot faster than the 3g speeds I get, so I think I'm going to leave wifi on all the time now.
Thanks for the opinions guys.
Sent from my SGH-T959 using Tapatalk
If I leave wifi on at night I lose about 8% or so in ~8hrs.
Sent from my SGH-T959 using XDA App
When I'm on wifi I normally turn all mobile data off. There's a widget that comes with Juice Defender that allows you to do that with one press. You can still get emails and texts, so the only thing you can't do is stuff that requires a cell connection, like Market. It really saves a ton of battery to turn off both 2G and 3G radios.
As others have said, Wifi is better for the battery. If you're connected for most of the day it'll also help to disable the Vibrant's wifi sleep policy.
Settings>Wireless and network>Wifi settings>Menu>Advanced>Wifi sleep policy>Never
vapotrini said:
As others have said, Wifi is better for the battery. If you're connected for most of the day it'll also help to disable the Vibrant's wifi sleep policy.
Settings>Wireless and network>Wifi settings>Menu>Advanced>Wifi sleep policy>Never
Click to expand...
Click to collapse
Stupid question but why? Wouldn't that eat battery? Or does it just male the phone stay on wifi rather than when it sleeps and comes back the wifi doesn't re-iniate?
Sent from my SGH-T959 using XDA App
fnakfhe said:
Yo.
3g = 3 - 5 MBits/s
WiFi = 10 - 120MBits/s
And yes we have WiFi N in our phone.
Do the math on how much longer 3g will last.
Sent from my GT-I9000M using XDA App
Click to expand...
Click to collapse
your logic is wrong.
3G actually uses more battery, so if you turn 3G off, wifi will save your battery.
Hows your phone doing now guys? I was having alot of restarts before the update, atleast 1-2 day and my phone hasnt restarted since the update. Signal strength seems stronger....
Never got any reboot even before OTA
battery life seemed fine, can 't really notice signal improvement
got a useless wifi calling (I am not Tmo user)
and damn it storage is still 1.15GB!
Never had a problem before.
After, I seem to be getting better signal but battery life has gone to the sewer... And I'll never use tether or wifi calling....
Why won't you be using wi fi calling?
Sent from my T-Mobile G2 using XDA App
Bcs no everybody needs wifi calling . I'm using tmo and I probably won't be using wifi either not bcs its pointless but bcs I personally don't need it. Even tho I haven't received the update
Sent from my T-Mobile G2 using XDA App
i've used the wifi calling, I don't consider it useless. i have a low sig strength in my house ( 1 bar if im lucky). Its great now i get great coverage plus being able to use it internationally is a plus
TheManCityLife said:
Why won't you be using wi fi calling?
Sent from my T-Mobile G2 using XDA App
Click to expand...
Click to collapse
Because I get 4 bars of coverage in my house and my office which happens to be in the middle of a middle floor of the building (ie, I get great coverage).
For some reason, the battery does seem to be doing much better so far today, I'll give it a couple more days before I decide to un-do the OTA
from what i have read about the wifi calling is if you use wifi calling internationally, you will be charged roaming. you cant turn the radio off and use just the wifi app when you call, phone has to register on the towers wherever u are
I haven't gotten any improvements. Battery life is the same, reception is the same, I never had random reboots before, I'm still getting FC's about 10 times a day, and I'm still at about 1.1GB for internal phone storage.
I don't have wifi in my house so wifi calling is moot, and I have no need for tethering... hopefully the next update will actually get me something useful.
my G2 seems to last even longer than I did before when I use it on EDGE. And I have a better signal. at my job I get one bar usually and wifi calling is a great plus for me at work.
Sent from my T-Mobile G2 using XDA App
o>c said:
Never got any reboot even before OTA
battery life seemed fine, can 't really notice signal improvement
got a useless wifi calling (I am not Tmo user)
and damn it storage is still 1.15GB!
Click to expand...
Click to collapse
Do you use simple mobile?
cbmm said:
Hows your phone doing now guys? I was having alot of restarts before the update, atleast 1-2 day and my phone hasnt restarted since the update. Signal strength seems stronger....
Click to expand...
Click to collapse
i never had a prob with my g2 before update, but now wifi is broken no matter where i am i cannot connect to wifi, is anyone else having this issue?
I seem to have much less drops after ota, and faster data latency
Sent from my T-Mobile G2 using XDA App
Same issue before and after.. dropped calls, maybe a slight improvement.. maybe.
Waited for the OTA update.. since I get the same issue I asked for a replacement and they're sending one. Love this phone when it works well.
Well I had a ton of random reboots before the update. I had to pull the battery at least twice a day. After the ota I havnt had one reboot so far. I updated yesterday. Will update if problems come back
Sent from my T-Mobile G2 using XDA App
i never had any problems, but the ota seemed to give me H in more areas. Mainly my house, where there is no damn reception at all it would jump from 2 bars edge to 1 bar H. the wifi calling was a blessing for me. i finally know wut its like to have full reception at my home
Before update, I never had random reboots, bad reception, wifi issues, etc.
After update, haven't noticed any improvements. I'm using a different battery so can't say about stock battery
Sent From My G6
Well, got my first power off on Saturday since the OTA, had to pull the battery. And a few hours after while browsing Facebook got the good 'ol reboot to HTC screen. Sigh.
Also, the signal seemed to be better right after the OTA, but over the weekend was having lots of hopping from UMTS/HSDPA to No Service>GPRS>EDGE where it would hang for about 5-10 minutes then go back to UMTS/HSDPA. All while sitting still on a table in my living room, where my myTouch3G 1.2 would stay 3G the whole time.
Because of that I used a lot of WiFi over the weekend. Is it normal for the G2 disconnect from cell service when enabling WiFi and then to not connect back to cell service after disconnecting from WiFi for a good 3-5 minutes? Again, the lame myTouch3G never did that. Either way, time to call T-Mobile and report issues again so I can justify what is likely another return.
So far the battery life improved by at least 3 fold for me with WiFi Calling on preferred. While at work and at home, the signal defaults to WiFi and shuts off the regular cell radio and it is nice.
That said a new development has arisen for the last day or so and I get a connection error to T-Mobile's network. It says that I am currently registered with the T-Mobile Network. Would You like to register to enable WiFi Calling? I hit register and nothing happens. Anybody else encounter this yet?
Before OTA, some random reboots (about 3 times in 2 weeks), pretty week signals at work, in bedroom and part of the way to work. After OTA, no random reboots yet, better signals everywhere I've noticed bad signals before....and, I no longer get that random signals switching from H->E->G->NS... Liking the G2 much more now after the OTA. I personally have not used the WiFi calling or the Tethering, so, no comments there.
OK so I have read different way to save battery power on rooted nexus s but don't know what is best. I am currently using setcpu but can not tell a difference. If anyone has another way please share in great detail because I am new to rooted phones.
Sent from my Nexus S using XDA App
Turning off the mobile data connection will make an enormous difference you won't believe it.
Second is use WiFi when available, it will save tons of battery.
Why does there always have to be a funny guy.
Sent from my Nexus S using XDA App
He's not joking. That IS how you do it.
Sent from my Nexus S using XDA App
Man Im sorry dude read that wrong. I thought he said turn phone off LOL......
Sent from my Nexus S using XDA App
Not so sure about the wifi part. I've compared the phone idling on 3G vs. idling on wifi and with wifi there's definitely more power draw. Confirmed it with System Panel, the CPU is pegged at around 10% usage while idling with wifi vs. about 1% when idling on 3G.
This has been consistent with all my other android phones too (Nexus One, Vibrant, MT4G)
B3arfruit said:
OK so I have read different way to save battery power on rooted nexus s but don't know what is best. I am currently using setcpu but can not tell a difference. If anyone has another way please share in great detail because I am new to rooted phones.
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
can please post what your setcpu settings are? thx dude!
dinan said:
Not so sure about the wifi part. I've compared the phone idling on 3G vs. idling on wifi and with wifi there's definitely more power draw. Confirmed it with System Panel, the CPU is pegged at around 10% usage while idling with wifi vs. about 1% when idling on 3G.
This has been consistent with all my other android phones too (Nexus One, Vibrant, MT4G)
Click to expand...
Click to collapse
You're right, wifi uses more power than 3G, and they both use more power than 2G. When idling I'd definitely want to sit on 2G if anything. When you actually need an internet connection though, wifi and 3G will be more efficient. They'll use more power but will download much faster to make up for it.
Saving power is the same for almost all android devices:
1) turn off mobile network when not in use
2) turn off wifi when not in use
3) turn off gps
4) turn off automatic syns( if you dont use them)
5) brightness set to low
6) turn off live wallpapers
7) use a black wallpaper
8) turn off haptic feedbacks
9) set screen time out to a smaller interval.
all these steps might help you but it kind of takes away the charm of the phone imho.
dinan said:
Not so sure about the wifi part. I've compared the phone idling on 3G vs. idling on wifi and with wifi there's definitely more power draw. Confirmed it with System Panel, the CPU is pegged at around 10% usage while idling with wifi vs. about 1% when idling on 3G.
This has been consistent with all my other android phones too (Nexus One, Vibrant, MT4G)
Click to expand...
Click to collapse
It's definitely the opposite of that, its counter intuitive but WiFi uses significantly less battery life over 3g. I can post some numbers when I get home tonight if anyone's interested. But a good test is leave your phone on WiFi all night, then repeat on 3g and see the enormous difference. Better yet just look at the official Google specs, web browsing time is always higher on WiFi.
I did some real nice graphing of current draw at 2 second sample rate comparing various tasks which is What I'll try to post later..
What's the best rom for battery life?
Sent from my Nexus S using Tapatalk
robstunner said:
What's the best rom for battery life?
Sent from my Nexus S using Tapatalk
Click to expand...
Click to collapse
Bionix 1.2 @ stock speed, not the OC-ed version
it's stable, fast, and battery good
i have my data on all the time sync-ing every 30min
and 1 battery can last me a full day without plugging it in
Wifi automatically sleeps if your phone is idle for so long, therefore saving battery. 3g absolutely kills my battery so I have mobile data disabled when not using it. Works well for me. Also screen brightness on 0% using an app works good.
Sent from my Nexus S using XDA App
deeren said:
Saving power is the same for almost all android devices:
1) turn off mobile network when not in use
2) turn off wifi when not in use
3) turn off gps
4) turn off automatic syns( if you dont use them)
5) brightness set to low
6) turn off live wallpapers
7) use a black wallpaper
8) turn off haptic feedbacks
9) set screen time out to a smaller interval.
all these steps might help you but it kind of takes away the charm of the phone imho.
Click to expand...
Click to collapse
I agree!!!!!!
AllGamer said:
Bionix 1.2 @ stock speed, not the OC-ed version
it's stable, fast, and battery good
i have my data on all the time sync-ing every 30min
and 1 battery can last me a full day without plugging it in
Click to expand...
Click to collapse
Should you use setcpu with this rom? Or is it better without it
Sent from my Nexus S using XDA App
B3arfruit said:
Should you use setcpu with this rom? Or is it better without it
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
i tried with and without setCPU, and the difference in power saving was marginal
so i removed it.
it probably gave me an extra hour, but there is a bug with setCPU when picking up calls, it gets staticky until the CPU is at 800 Mhz or more
so with all that i mind, i decided to remove it
leerobson99 said:
Wifi automatically sleeps if your phone is idle for so long, therefore saving battery. 3g absolutely kills my battery so I have mobile data disabled when not using it. Works well for me. Also screen brightness on 0% using an app works good.
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
True, change the WiFi sleep policy to "never" to avoid this and extra battery savings.
I've been getting the best with CM7 so far, but I think all the roms that are about the same as long as you don't overclock them.
Use a black static wallpaper, low brightness, and get the black-themed MMS and Gmail apps from the Themes/Applications forum.
I can get well through my work day. Usually have 2+ hours of display time on and about 16 hours off the charger by the time I plug in at night with still 20-30% left. Depends on my reception in the day as well, which is pretty bad at work, so I think I'd have 30-35% if my reception at work was good.
deeren said:
Saving power is the same for almost all android devices:
1) turn off mobile network when not in use
2) turn off wifi when not in use
3) turn off gps
4) turn off automatic syns( if you dont use them)
5) brightness set to low
6) turn off live wallpapers
7) use a black wallpaper
8) turn off haptic feedbacks
9) set screen time out to a smaller interval.
all these steps might help you but it kind of takes away the charm of the phone imho.
Click to expand...
Click to collapse
Agreed on all points except for GPS. Since it's an on-demand service, leaving it on makes little to no impact on battery life. The phone only utilizes the GPS connection when an app calls for it and saves you the time of having to toggle it every time you need it. Just leave it on.
RogerPodacter said:
It's definitely the opposite of that, its counter intuitive but WiFi uses significantly less battery life over 3g. I can post some numbers when I get home tonight if anyone's interested. But a good test is leave your phone on WiFi all night, then repeat on 3g and see the enormous difference. Better yet just look at the official Google specs, web browsing time is always higher on WiFi.
I did some real nice graphing of current draw at 2 second sample rate comparing various tasks which is What I'll try to post later..
Click to expand...
Click to collapse
An active WiFi connection uses a lot less than an active 3g connection because the connection already exists and the data transfers faster.
An idle 3g connection uses significantly less energy than an idle WiFi connection. If you aren't using or connected to WiFi, turn it off. Set the WiFi sleep mode to sleep when the screen is off.
Hi all,
Now I've not tried this myself however a friend of mine who recently got a DHD said he was lucky if the battery lasted a day on a full charge however by turning "Data roaming" off (even though he is not roaming) he is now getting anything between 2-3 days on one charge
Data roaming was turned off by default on mine and still the battery drained pretty quick.
Using data of any kind will affect the battery badly. Notes Traveler on my device is the cause of it needing charging every day.
Same as any phone, the more you disable the longer the battery will last.
If everything was implemented correctly by HTC, turning off Roaming should have no impact on battery life at all (provided you don't use Roaming).
I believe that your friend experienced the typical warm-up phase. For some (a lot?) people the battery life is terrible when they first use the DHD, but it gradually gets better.
Your friend probably attributes the increase of battery life to the disabled Roaming, while it is just a "natural" process.
I'm roaming all the time, and my battery is actually pretty good. If i don't use it much it can easily survive two days. My record is three days with light usage. (That was with the stock 1.72 ROM)
What is data roaming anyway???
Sent from my Desire HD using XDA App
Data roaming is set off by default. And data roaming controls data transfer when you are not on your home operator/network, i.e when traveling.
are your friend meant data connection?
MarkieSA said:
Hi all,
Now I've not tried this myself however a friend of mine who recently got a DHD said he was lucky if the battery lasted a day on a full charge however by turning "Data roaming" off (even though he is not roaming) he is now getting anything between 2-3 days on one charge
Click to expand...
Click to collapse
He probably means "3G" off? I've had mine since the end of October and got into the habit of charging the phone every night. But then wondered about the effects of turning off wifi and 3G as, currently, I'm at home most of the time and have a PC with 24" screen to play with. Anyhow, with 3G and wifi turned off most of the time I get 3 days or so from a charge. I haven't investigated turning just one or the other off as life's too short ....
HTH
Dave
PS: and someone will say, well what's the point of a smart phone if you're just using it like a dumb phone? Well, the "smart" bit here in this case is me ....
Yeah, 3G uses a bit, so the first thing i did was to disable it. No point for me using it actually, since it's WiFi all over the place here i live. If i need it, i'll simply enough just toggle it on.
Sent from my Desire HD using XDA Premium App
BazookaAce said:
Yeah, 3G uses a bit, so the first thing i did was to disable it. No point for me using it actually, since it's WiFi all over the place here i live. If i need it, i'll simply enough just toggle it on.
Sent from my Desire HD using XDA Premium App
Click to expand...
Click to collapse
You're roaming all the time and then in the next post you say that the first thing you did was to disable 3g... Are you just posting in order to follow others opinions or what?
And btw 3g doesn't actuality use much more power when compared to wifi, if you always use it somewhere where the signal is always poor then it's another thing.
Sent from my Desire HD using XDA App
dvhttn said:
He probably means "3G" off? I've had mine since the end of October and got into the habit of charging the phone every night. But then wondered about the effects of turning off wifi and 3G as, currently, I'm at home most of the time and have a PC with 24" screen to play with. Anyhow, with 3G and wifi turned off most of the time I get 3 days or so from a charge. I haven't investigated turning just one or the other off as life's too short ....
HTH
Dave
PS: and someone will say, well what's the point of a smart phone if you're just using it like a dumb phone? Well, the "smart" bit here in this case is me ....
Click to expand...
Click to collapse
If I meant 3G then that's what I would of said. So just to be clear, there is an option "Data Roaming" that when turned on will enable a data connection when you are in another country. My friend claims that while on his home network he has turned this option off and he has seen a big improvement on battery performance. If this is true or not I'm not sure, I just simply thought I would share his thoughts with everyone else.
I did this, once i remembered where it was and I got my old battery life back. So thats a bonus, not having to take my charger to work!
Vispe85
And btw 3g doesn't actuality use much more power when compared to wifi said:
Using System Panel graphs to monitor battery drain I'd concluded that 3G drains battery at about twice the rate compared to wifi.
Click to expand...
Click to collapse
Got my LTE upgrade done on my Xoom and now the battery is a joke. I went into settings and disabled the LTE connection, so that now 3g is only used. I also turn wifi on when at home. Currently my Xoom is draining 4ish% per hour while in standby. That means this damn thing won't last a day just sitting there, locked, with no screen on. In Honeycomb 3.0 and 3.1 I could get a days of use with 4-5 hours of screen on time and about 22-26 hours of total unplugged time. Now, under 3.2.2 my battery is totally dead after 18 hours of unplugged time with around 1-1.5 hours of screen use. This is virtually unuseable for taking notes in graduate school after work, when being close to an outlet is impossible.
Any ideas as to what's going on? Tried using Watch Dog and System Panel to see if any apps were going nuts with random CPU usage or RAM usage and everything seems to be in-check in terms of system resource usage. Considering I have 4g totally turned off and wifi enabled when I'm in range of wifi (most of the day) I don't have a clue where this power drain is coming from. Any assistance is highly appreciated given how much I rely on my Xoom for day-to-day use. 3.2.2 seems to have killed it for me.
Please help! Will try any suggestions.
Thanks.
Sent from my Xoom using xda premium
Have you tried disabling mobile data entirely? When I'm in wifi, I disable the cellular connection but haven't performed any in-depth trials on battery life.
"Settings" > "Wireless & networks" > "Mobile networks" > deselect "Data enabled"
Its not just you, mine is the same way it sucks big time. There really isn't anything that I've found to fix it.
I loved how I used to be able more than a day out of a charge...
Anybody have any ideas? Maybe undervolt kernel???
Sent from my Xoom using xda premium
I just received my zoom Lte upgrade and haven't had any battery issues.
PengLord said:
Have you tried disabling mobile data entirely? When I'm in wifi, I disable the cellular connection but haven't performed any in-depth trials on battery life.
"Settings" > "Wireless & networks" > "Mobile networks" > deselect "Data enabled"
Click to expand...
Click to collapse
I haven't but this isn't feasable. I use mobile internet for everything and even take notes and such on Google docs. Even though I'm near wifi for most of a given day, I shouldn't be bothered by manually turning mobile data on and off just to have power- mobile data should be mostly killed when wifi is active. That's how this Xoom worked before. A tablet without internet is nothing more than a paperweight to me. 2 classmates with LTE upgraded Xooms are having identical problems. No fixes found yet. Any other suggestions? This battery life is really, REALLY bad.
Tried going a factory reset and battery life is the same, horrid short, running nothing but stock apps.
Any other suggestions?
Sent from my Xoom using xda premium
wiredup said:
I just received my zoom Lte upgrade and haven't had any battery issues.
Click to expand...
Click to collapse
How long ago did you receive it? The degraded battery seems to have started shortly after the first initial charge after the LTE install.
Sent from my Xoom using xda premium
Same problem here, but I have the mobile network completely turned off and it still does this! Even with the switch to CDMA only!
I will keep reading this thread (only read the about half the posts before posting) so hopefully a solution will show up. But you're not alone in the horrible battery life post LTE upgrade!
I've had my Xoom back since last Wed.
No higher battery drain than previously.
I'm on wifi 90% of the time in home and office.
Yesterday I was all over north San Diego county using 4g. Got home with 60% charge which is about the same as for a prior trip with 3g.
Put your xoom back the way it was. The new hardware sucks the battery a little more. Buy a thunderbolt and then say the xoom battery life sucks. Never charged it during the day before the upgrade. Oh well, that's the price if 4g.
Sent from my ADR6400L using xda premium
Err0xx said:
Got my LTE upgrade done on my Xoom and now the battery is a joke. I went into settings and disabled the LTE connection, so that now 3g is only used. I also turn wifi on when at home. Currently my Xoom is draining 4ish% per hour while in standby. That means this damn thing won't last a day just sitting there, locked, with no screen on. In Honeycomb 3.0 and 3.1 I could get a days of use with 4-5 hours of screen on time and about 22-26 hours of total unplugged time. Now, under 3.2.2 my battery is totally dead after 18 hours of unplugged time with around 1-1.5 hours of screen use. This is virtually unuseable for taking notes in graduate school after work, when being close to an outlet is impossible.
Any ideas as to what's going on? Tried using Watch Dog and System Panel to see if any apps were going nuts with random CPU usage or RAM usage and everything seems to be in-check in terms of system resource usage. Considering I have 4g totally turned off and wifi enabled when I'm in range of wifi (most of the day) I don't have a clue where this power drain is coming from. Any assistance is highly appreciated given how much I rely on my Xoom for day-to-day use. 3.2.2 seems to have killed it for me.
Please help! Will try any suggestions.
Thanks.
Sent from my Xoom using xda premium
Click to expand...
Click to collapse
Download Auto Airplane Mode by DON from the market. It will help BIG TIME!! It does just what the title states, it puts the Xoom into airplane mode automatically as soon as the screen goes off. When you turn the screen back it, the data comes right back in 3 -4 seconds and you're good to go!
Also, you don't have to uncheck any settings or turn 4G off.
Update: Mobile data completely turned off, on wifi only with Xoom sitting about 4 feet from router all morning, so wifi signal was strong. This is the first time I've used the device today. Unplugged at 330am my time, its now 130pm. Device battery is at 60%. 10 hours and 40% of battery gone. That's with mobile data 100% disabled, wifi only- can't even get the Xoom to standby for a full day now. At this current drain rate, it would go from 100% to 0% in one day with no mobile data usage, no screen on time and no usage other than syncing Gmail every 2 hours.
Brother who commented above: Thunderbolt will standby for a full day with no screen on time on wifi only and it has under 1/3 the Xooms battery capacity. I should know- my wife has one and it now outlasts my Xoom. That should not be the case.
From my understanding the Xoom has two 3225ish batteries set up in a sequence. My battery life actually seems to be about half of what it was before. Is it possible that one of the two was disconnected during the LTE radio installation and not properly reconnected? Wasn't sure of the details of how the batteries were set up, but if the Xoom could function with the second battery not working, seems like that would precisely half battery life. Anyone familiar with exactly what had to be done internally to upgrade the radio? Looking at the ifixit teardown of the Xoom, the batteries cover the whole backside- looks impossible to do any internal work on this thing without removing them. Any thoughts?
Cheers,
Landon
Sent from my Xoom using xda premium
Same here. Can't get a full day out of it. Hope a fix will be comming up.
Thunderbolt got the he-man battery and modded my otter box to fit. The xoom battery has entered the battery hog realm after the lte radio. As far as I can tell the radio is cdma/lte together. And it uses power even if wifi is on and data off. It's what I would call big brother watcher. Even if your not connected the radio is txing and rxing something. You know it's lojacked!
Sent from my ADR6400L using xda premium
Interestingly enough, removing the LTE SIM card and using wifi only made no improvement to battery life. I'm assuming the new radio is running at 100% all the time without throttling down, even if absolutely no connection exists or there is a string of faulty battery reinstalls in which only one battery is providing power. That might explain why some people seem to have greater battery issues than others.
Landon
Sent from my Cherryπ 0.8 Atrix. Get yo' slice on.
im glad im not the only one with this problem! its pathetic! im taking my charging cable from my dock with me to work so ill have at least some battery life when i take the train home in the evenings
i to am glad that I'm not alone with this either. I use to charge mine every 4 days with no wifi on and almost no use. Now I get about a day with no use. I mainly use it for web searching and dungeon defenders when I'm home. Horrid battery life for doing nothing. Luckly I mainly only use it at home and am almost always on the dock I got from motor from the upgrade. I use about 4% an hour also with nothing on. Mine is completely stock with no root.
Yahoo mine is stock with absolutely no root or other mods. I guess they knew about the pissy battery life and that's why they gave a free dock. Lol. Still trying to find exactly what's killing the battery. LTE does drain a lot of juice but as I've stated before my wife has a Thunderbolt and per mW of battery power, the thunderbolt is more efficient and that's not saying much. It can standby for over a day with no use fine and it has roughly a little less than 1/3 the Xoom battery capacity. Something isn't right. Its not supposed to be this bad. Anyone filed a complaint/tech request with moto/Verizon? I think its something that we should all do and report what they say here. I have a feeling more and more people are gonna have this issue if they do the upgrade. Maybe if enough of us make some noise, something will be done.
Landon
Sent from my Xoom using xda premium
Maybe it's not the radio.
3.2.2 may have some kind of interaction with something you guys were running that's causing wake locks to get stuck
Did you look at Settings:About Tablet: Battery Use ?
(tap on the histogram at the top for another, see if the time spent awake is solid or different from screen on)
I tested this on mine, with the mobile data disabled and lost about 1% battery every hour, this is on par with the performance I had pre-upgrade.
Rooted, stock kernel
I realize it does not help you but you might look somewhere other than the wireless radio for the problem. I unplugged my upgraded Xoom yesterday morning around 8:30 AM. It is now 8:20 AM and my battery is at 66%. I was on 4G for about 2-3 hours yesterday, the rest of the time on wifi. I check and respond to my mail on the Xoom so it saw some use yesterday, though not as much as I normally do.