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Hi guys, any thoughts regarding Battery life? I get roughly 8 hrs, not the 9.5-10hrs advertised/reported in the forums. Of course, this is with very high use, screen on 7.5hrs, wifi on the whole time, plex on for an hour or so, mobo video playing for an hour, and web browsing for a couple of hours, and some games too. Is this standard? Dock battery is ok, gives around 5 hrs. Any ideas on improving battery? Screen stays at 60% brightness all the time. Plus i have cnn, facebook, youtube, pulse, cnbc and plume widgets on. And active mail sync in the background.
Sent from my Transformer TF101 using XDA Premium App
psycho2097 said:
Hi guys, any thoughts regarding Battery life? I get roughly 8 hrs, not the 9.5-10hrs advertised/reported in the forums. Of course, this is with very high use, screen on 7.5hrs, wifi on the whole time, plex on for an hour or so, mobo video playing for an hour, and web browsing for a couple of hours, and some games too. Is this standard? Dock battery is ok, gives around 5 hrs. Any ideas on improving battery? Screen stays at 60% brightness all the time. Plus i have cnn, facebook, youtube, pulse, cnbc and plume widgets on. And active mail sync in the background.
Sent from my Transformer TF101 using XDA Premium App
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The 9.5h time is stated for constant 720p playback so I don't think your usage is that much higher. I never stopped the time for my ASUS but I am happy with it and I guess that's what matters most.
I use SetCPU (requires root) to set the clock speed to 216MHz when idle. That seems to improve battery life.
I am not getting anywhere close to 9 hours. At first I thought it's the apps I have been running in the background or the brightness, but it's the same after I adjust it. I get about 6 hours.
Dude....6 hours is pretty low.anyways, i havent rooted it yet because of the impending otas.will do it as soon as a gr8 custom rom comes out.
Sent from my Transformer TF101 using XDA Premium App
funnycreature said:
The 9.5h time is stated for constant 720p playback so I don't think your usage is that much higher. I never stopped the time for my ASUS but I am happy with it and I guess that's what matters most.
I use SetCPU (requires root) to set the clock speed to 216MHz when idle. That seems to improve battery life.
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Yes but i do video streaming over wifi. Also my wifi is on the whole time. And as far as i know, wifi takes more battery than video decoding.
Sent from my Transformer TF101 using XDA Premium App
The 9.5 hours is for
Airplane mode
playing a local movie, only
display at about 30% based on the NITS listed and Anandtech measured brightness
I bet you can achieve the same if you duplicate their testing scenario.
As for improving battery life decreasing screen brightness can have a huge difference. The screen is often the #1 power usage item when I check on my phone. Also, reduce the checking frequency of any task that needs Wifi to get data.
It's been 15 days now since I had the TF and I can tell you based on my usage - I used up;
12% per hour - airplane mode, play games watch movies in auto brightness
1% per 2.5 hours standby.
So more or less 9 hours usage should be achievable.
I get about 18 hours of constant use with dock
I play with the thing all the time and I honestly haven't ended a day with my battery being below 50% yet.
Actually, out of fairly constant use, I haven't charged mine for, let's see... 2 days, 6 hours, and 52 minutes. Currently at 48% charge.
EDIT: Oh, and I don't have the dock, so it's not counting that.
Ayesuku said:
I play with the thing all the time and I honestly haven't ended a day with my battery being below 50% yet.
Actually, out of fairly constant use, I haven't charged mine for, let's see... 2 days, 6 hours, and 52 minutes. Currently at 48% charge.
EDIT: Oh, and I don't have the dock, so it's not counting that.
Click to expand...
Click to collapse
Screen brightness?
any idea on getting the battery usage percentages? mine shows a graph and below it: battery usage data not available. i want it like i get on my captivate: the detailed battery use percentages.
Sent from my Transformer TF101 using XDA Premium App
Mines draining less than 1% per hour when screen is off but device still on
LEEDROID GB3.0.1DESIRE HD using XDA PREMIUM
Sam9938 said:
Screen brightness?
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It stays on auto. When it lasts me multiple days, I can't say I really worry about saving battery much.
For example, I unplugged it this morning at 7, played with it quite a bit today including playing Zenonia for a little over an hour and letting my friends play around, and my battery is currently at 75%.
Hi all. I just wanted to chime in on this thread here. Im a former owner of a xoom and can say that tablet was a beast when it came to battery life. I could have a full charge last for 2 weeks+ with very minimal use all consumed by idle standby. That was something to be said. The tf isn't as good; I can tell already, but I was surprised today! I charged it overnight and unplugged it around 11am. 98%, until I woke it up right now! Its at 97% with 13 hrs 39min. I probably had the screen on for only 5 minutes, but pretty good! One thing to point out that helped me a lot was to always have the tab in airplane mode. You can still have the wifi on and stay in airplane mode. That seemed to make a difference with the xoom. Just my $.02
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I get 5ma constant use in sleep mode. By that logic, u would lose 1% in 13 hours on sleep mode. So yeah, idle use is pretty good. Decent tested flight mode yet though.but seriously, y doesn't battery use show the percent divisions like my phone? :O
Sent from my GT-I9100 using XDA App
Its doesn't seem that any of you guys are reading the manual when it comes to battery.
It says it clear in the manual. Why not follow what the book says, I guess some dont read.
"If you intend to use battery power, be sure to fully charge your battery pack before going on long trips.Remember that the power adapter charges the battery pack as long as its plugged into the computer and AC power source. Be aware thats it takes much longer the charge the battery pack and when the Eee Pad is in use"
Remember to fully charge the battery (8 hours or more) before the first use and whenever it is depleted to prolong battery life. The battery reaaches it's maximum capacity after a few full charging and discharging cycles.
"To prolong Battery life, charge the battery for up to 8 hours when using Eee Pad for the first time and whenever the battery power is fully depleted.
Hello All,
does anybody noticed the increased power consumption after the last official update (3.2.1)? Below is my battery chart after just one day. The most interesting part is when I didn't used tablet in last couple of hours, as you can see no WiFi, screen, pad not awaken and... battery draining as hell. On detailed battery usage screen Android OS was on the top with 38% then WiFi 15% and screen 12%
Before update battery life was ok (My TF is early hardware, stock OS, no root etc.). After update I didn't changed anything, same configuration, no new software, updates etc. Just rebooting two times because tried to get rid of another 3.2.1 bug aka "mobile browser"
I appreciate that Asus is quick to pushing updates to TF, but this time they did it too fast.
Does anyone have a similar problem, or is it just my update went wrong?
I get 7 hrs of hardcore usage, as for a day odds of charge, lucky u, how long where u getting before cause im impressed ;-)
Sent from my Transformer TF101 using Tapatalk
will8578 said:
I get 7 hrs of hardcore usage, as for a day odds of charge, lucky u, how long where u getting before cause im impressed ;-)
Sent from my Transformer TF101 using Tapatalk
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Look again, he was not using it
Sent from my Transformer TF101 using xda premium
Yeah really impressive, battery from 40% to 0 in just 16 hours of doing nothing .
But to satisfy your curiosity, I had around 7-8 hours of continuous use with WiFi and screen on.
lol sorry for not reading properly, i only got my eeepad on sun and updated straight away to 321, so its all i know at the mo, iv also got a b70 so im patiently waiting for root,
Sent from my HTC Desire using XDA App
You are going to want to charge your battery to 100 and use the battery calibration app in the market...called battery callibration. Do the instructions it tells you.
You might want to install CPU spy and see what is running in the background to drain your battery like that.
n
Sent from my Transformer TF101 using xda premium
This is a real bug. Here's a screenshot I just took from my tablet. Tell me you don't see something strange with Android OS taking up 26% of the power.
That's 83% battery life left over 4 hours of me using it for about 30 minutes total.
You may want to observe the non-sleeping time using "cpuspy" from Markets. Quite revealing...
boonkui said:
You may want to observe the non-sleeping time using "cpuspy" from Markets. Quite revealing...
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Can you see the actual apps or processes running with cpuspy? All I can see is a horizontal bar graph with percentages of different frequencies
ThEiiNoCeNT said:
You are going to want to charge your battery to 100 and use the battery calibration app in the market...called battery callibration. Do the instructions it tells you.
You might want to install CPU spy and see what is running in the background to drain your battery like that.
n
Sent from my Transformer TF101 using xda premium
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i thought that app only worked on rooted devices?
fldude99 said:
Can you see the actual apps or processes running with cpuspy? All I can see is a horizontal bar graph with percentages of different frequencies
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You are right. No apps shown. But it shows a bar indicating the duration the cpu spent in deep sleep - this is useful for me.
Sent from my Dell Streak using xda premium
Right...that's part of the problem with the new firmware..it never goes into a deep sleep. Not sure if it did previously, but the battery life since 3.2.1 is definitely bad
indeed i've seen a noticeable drop in the battery as well and was beginning to worry. hopefully someone comes up with a solution
I have no issues with battery drain after updating.
Did you double check that GPS didn't get enabled? Have you tried a factory reset after updating? Yeah, I know it's a pain in the ass, but it's not so difficult to get everything running again after hard resetting.
Regards.
Hi, I've noticed the same battery drain since the update , just bought the keyboard and was enjoying the added battery life ,but last night the pad and keyboard drained flat in seven hours while it was meant to be sleeping like me. It seems looking at the battery info that the wifi and system never shut down and does'nt even when charging :-(
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@CalvinH ,
Good points to check, but I was wondering if you are using the keyboard ,and that is perhaps why some people are not having issues,could it be a keyboard bug again. I will try without and see if there is any difference.
Sent from my Transformer TF101 using xda premium
Battery life has not been as good and also when playing music with google music it freezes sometimes and reboots wtf asus
I am getting random reboots as well, after 3.2.1 update. Twice now while the tablet was just sitting there on the table, suddenly the ASUS boot logo pops up.
I have always had problems with ActivityManager killing background tasks a little too aggressively, and so I wondered if it was killing things it shouldn't, now and then. (It does occasionally kill the wifi supplicant process, which should never happen.) But the reboots never happened before the latest update.
My battery life is significantly worse since the update. Before, in 12 hours of sitting idle, it would go through about 20% of battery. Today, it went through 70% in 13 hours of idle.
Wow sorry to hear that guys. For once mine has good battery life again! It was good, then after the last few updates it was reaaallly bad. Now it can go days, but it seemed like it got better right before the update?! Either way its better now.
Sent from my ADR6350 using Tapatalk
Hello everyone,
just have my tab for aroud nearly 2 weeks and I cant shake off the feeling that my battery just suck! I think that in past 8 days my battery performance just went down.
Dead Space ( balance mode, auto brightness ) and it was around 4 hours? i think 3 and half but not sure.
Yesterday watching TV show ( battery life mode ) 8-9 percent gone after 45 minutes of playback and it was in SD quality. Wifi, sync, gps etc was all off.
Surelly Im goin to test more, but could someone write some values so I can compare with my?
And for the record Im currently running ASUS-HYDRO, but I noticed it when I was on stock.
sounds about right
not good
QQboss said:
Hello everyone,
just have my tab for aroud nearly 2 weeks and I cant shake off the feeling that my battery just suck! I think that in past 8 days my battery performance just went down.
Dead Space ( balance mode, auto brightness ) and it was around 4 hours? i think 3 and half but not sure.
Yesterday watching TV show ( battery life mode ) 8-9 percent gone after 45 minutes of playback and it was in SD quality. Wifi, sync, gps etc was all off.
Surelly Im goin to test more, but could someone write some values so I can compare with my?
And for the record Im currently running ASUS-HYDRO, but I noticed it when I was on stock.
Click to expand...
Click to collapse
Might wanna check what apps are keeping your transformer awake...I get about 10 hrs of 720p playback w/o wifi gps or bluetooth on balance mode...
well thing is im always closing apps, I mean games, video player, browser etc
I have the same problem
4 hours and then its empty
Always close my aps
My firmware is 30
Sent from my ASUS Transformer Pad TF300T using xda premium
I have only had my tf300 for a few days but I am seeing about 6 hours for 99% to 30% while downloading apps and configuring the tablet. My
initial impression is that steaming video may be a heavy battery drain usage.
I used to think my battery life was bad, then i realised i constantly use it. Try turning your screen brightness down.
Sent from my ASUS Transformer Pad TF300T using xda app-developers app
Maybe its the rom your running, Im running Asus hydro and im getting like 7 hours of screen on time with 3 days of total usage before i hit about 20%
I get about 11h for web surfing. (lowest setting for screen bright)
I usually spend 10% per hour on medium brightness.
Think people need to take into account one of the biggest battery drains is the screen. Will see very different results depending on screen brightness.
You might have a problem.
I watch 720p videos without wifi gps or anything on and the brightness is a little below half.
It lasts over 10 hours.
Just to prove it over a couple days - but found a Hard Rest (Hold Vol Down + Power Button until the tablet reboots) seems to have helped overnight.
Thanks guys, just got sick so i think ill have some time to do proper testing but 10 hours of hd playback? I think this will be impossible for me
Sent from my ASUS Transformer Pad TF300T using xda premium
I've had my tablet since the beginning of May and at best I get 6 hours of screen on time, at 0% brightness, on balanced mode. That's with mostly web browsing. However the last couple of weeks I'm lucky to get 4 hours and the tablet will not enter sleep mode. If i turn the screen off, it's kept awake about 100% of the time, and that's even after a factory reset and not installing anything on the device.
Is there something else I can do, or is it about time I get a hold of asus? I'm on a stock device, if that makes a difference.
6 hours nonstop? That's impressive if you get that much life off a charge. If you mean you get 6 hours off moderate use, that's an issue. I get 2 days or so off moderate use.
It probably because you close your apps (if you do it with a task manager), they just keep opening up in the background again, which takes some battery, also you are using the auto brightness which makes the screen too bright. If I were you I would just adjust the brightness myself (like I do) to the dimmest possible (so that you can still comfortably use the device) whenever using the tablet.
Here are my battery stats on moderate use with power saving mode
Sent from my ASUS Transformer Pad TF300T using Tapatalk 2
I've had this device since September and I've almost always been unsatisfied with the batter but now it's even worse! I charge it every day just for some slight use and I think it's unacceptable compared to what's promised. Anyone else noticing the same? I've lost 10%/hour and most of the time being idle.
Added a pic as a reference.
Also my device is locked and not rooted.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Yeah my battery is starting to drain at a faster rate as well.
The performance have degraded on this tablet significantly as well.
...5.5hrs over 36+ ... not bad...
the_game_master said:
Yeah my battery is starting to drain at a faster rate as well.
The performance have degraded on this tablet significantly as well.
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i gotta say i'm still impressed with mine compared to the 4hrs and 2kg of my xps1330 with 9cell !!!
kotidoti said:
I've had this device since September and I've almost always been unsatisfied with the batter but now it's even worse! I charge it every day just for some slight use and I think it's unacceptable compared to what's promised. Anyone else noticing the same? I've lost 10%/hour and most of the time being idle.
Added a pic as a reference.
Also my device is locked and not rooted.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
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Click to collapse
You could download better battery stat and see what app/process is using up your battery. Also download "wifi" toggle wiget, and turn off wifi, only turn it on when you need it, see you your battery improved. Some reported wifi drain battery heavyly..
kotidoti said:
I've had this device since September and I've almost always been unsatisfied with the batter but now it's even worse! I charge it every day just for some slight use and I think it's unacceptable compared to what's promised. Anyone else noticing the same? I've lost 10%/hour and most of the time being idle.
Added a pic as a reference.
Also my device is locked and not rooted.
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
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Click to collapse
A couple of things to think about:
At home, on my Wireless N connection, my tablet lasts even longer than 1 day and a half with light use. I am currently on vacation in Hawaii, and have noticed a faster drain - and here I am on Wireless G. Could be a factor. So could your router itself.
Also, if you create drafts in GMail and save them, the Gmail app checks every 5 min for changes. Don't know why, but it does. I think it is by design.
Sent from my ASUS Transformer Infinity TF700 running Android JB (rooted) via Tapatalk
Best buy swapped my Prime for the infinity and so far it is pretty good except the battery life is terrible. I read it should improve after a couple cycles but I don't see it improving dramatically. On my Prime I could charge it once every 5-6 days with moderate use in the evenings. On the Infinity I am only getting 2.5 hours of screen time and down to 30%. Not even close to what it is supposed to get and I mainly use just web browser and WiFi everything off including sync and dim the screen.
At first the battery was so low it would not even turn on until it charge overnight. I read this is normal but I wonder if it sat for too long and the battery was damaged. It came loaded with 9.4.5.30 and I have not updated yet from that version. Should I exchange this for another one? Thanks.
Sent from my SGH-T989 using xda app-developers app
Is location services on?
Send from my Samsung Galaxy S3 using Tapatalk 2
Nope, just WiFi.
Sent from my SGH-T989 using xda app-developers app
bigcletus said:
Nope, just WiFi.
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2.5 hours!
Yes that's poor battery time.
Is your tablet's serial number in the C70's or C80's?
Kind of strange it was .30 instead of .26 as a brand new tab.
Check the performance level setting.
Otherwise I'm not sure.
bad battery stats
Sure its poss to get one with a bad battery or charger...but...
install the std jellybean power control widget ...its in widgets... and see if all your radios and svcs are on... if you have 3 radios on and sync and brighteness up ..your batt time will be toast....
if that doesnt fix it... do a FACTORY RESET.... that fixes this issue many times....
if that doesnt fix it.... RMA THAT SUKER...
Im in the same boat...my TF700 can barely last the day w/ intermittent use let alone steady use via gaming or videos. My TF101 can go a few days w/ out a recharge and it used to get a lot of use. I am wondering about a hard reset...did that work for the OP?
deprofundis said:
Im in the same boat...my TF700 can barely last the day w/ intermittent use let alone steady use via gaming or videos. My TF101 can go a few days w/ out a recharge and it used to get a lot of use. I am wondering about a hard reset...did that work for the OP?
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I had it swapped for another unit which has a similar serial number (CAOKAS...) and I am getting the same results. The best battery life I can get is just a little over 4 hours screen time and 3 days since last charge. Here is what else I have done:
-No GPS or any google loc services checked
-No Sync
-brightness at less than 25%
-disabled most stock ASUS apps
-rooted and used battery calibration after full charge from 0% batt
-Using Balanced mode, never performance mode
I mostly use for web browsing, maybe 80% of the time. The other time simple games like solitaire and majong. Thinking about getting it swapped again. Maybe the store got a bad batch or something. I am also coming from a tf101, tf201 and used to get great battery life on both of those tabs. This one however is worse than my lenovo laptop and my sgs2. Any thoughts?
bigcletus said:
I had it swapped for another unit which has a similar serial number (CAOKAS...) and I am getting the same results. The best battery life I can get is just a little over 4 hours screen time and 3 days since last charge. Here is what else I have done:
-No GPS or any google loc services checked
-No Sync
-brightness at less than 25%
-disabled most stock ASUS apps
-rooted and used battery calibration after full charge from 0% batt
-Using Balanced mode, never performance mode
I mostly use for web browsing, maybe 80% of the time. The other time simple games like solitaire and majong. Thinking about getting it swapped again. Maybe the store got a bad batch or something. I am also coming from a tf101, tf201 and used to get great battery life on both of those tabs. This one however is worse than my lenovo laptop and my sgs2. Any thoughts?
Click to expand...
Click to collapse
To be honest that sounds about right - I get approx 5 hours screen time on mine without the dock. I had a prime before and the Infinity uses a lot more juice.
If it is sleeping I can probably get 3 to 4 days out of it - never really tested but it only loses ... say 5% max overnight.
With WiFi turned off I get about 9-10 hours, with it on, 4 at most provided I don't use music or videoplayers. The WiFi antenna drains juice like a vampire. (the non-sparkly kind.) It's much more powerful than on any of the previous tabs.
Sleeping.. well, it's been sleeping for about 2 weeks now, let me check.... 82%. WiFi off at all times. If I leave WiFi on whilst sleeping it's dead in 4 days.