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my little rant about the battery life.

the battery life on the raphael is a bit.. odd. Before I had this phone, i had the Sidekick LX, which was able to last about 12-14 hours and it didnt really matter how much I used it. The data on the sidekick is on all the time, but it is Edge.
However, using the ATT Fuze (raphael variant), I am a bit happy, and yet, a bit upset at the battery life. First, if i do not have data on, the battery lasts extremely long. Its been more than 12 hours, and i am at 85%. I had minimum web browsing, made a few phone calls, and talked for about an hour. Oh and i have email updates every 2 hours. Thats pretty remarkable for a smart phone.
BUT, if i am to browse the internet, listen to internet radio, or have an instant messaging program open, the battery drains at least 10% every hour! Thats horrendous! What is the point of a 3g smart phone if i cannot really use it because the battery will die if i do?

Hmm, I have hammered my phone the past few days with texts email, phone calls, messaging and some light video usage. It lasted about 10 - 14 hours and I charged it once a night. I have been pretty pleased with it.
I leave data on all the time and it will download my RSS feeds every 2 hours pictures and all, weather will update etc so its always using something. With normal usage and the always on stuff I have had it last about 2.5 - 3 days making very short and few calls.
With the screen being on, data going and all of the other stuff it saps the battery fairly well. I wish battery tech would advance a little to make it last longer but its better than my last phone by a good amount.
Have you made any of the power saving tweaks from that thread to your phone? You should be able to squeeze some more juice out of it.

There are several Raphael power tweaks on this forum, I would find them for you but am about to go to bed and am really tired. One I remember is you can put a disconnect time on the data using diamond tweak so it disconnects from data quickly when your not using it and saves battery. Sorry for not eing fo more help.
Did you condition your battery when you got the phone? That can help with you battery life sometimes.

Battery gone wild
xgm541 said:
the battery life on the raphael is a bit.. odd. Before I had this phone, i had the Sidekick LX, which was able to last about 12-14 hours and it didnt really matter how much I used it. The data on the sidekick is on all the time, but it is Edge.
However, using the ATT Fuze (raphael variant), I am a bit happy, and yet, a bit upset at the battery life. First, if i do not have data on, the battery lasts extremely long. Its been more than 12 hours, and i am at 85%. I had minimum web browsing, made a few phone calls, and talked for about an hour. Oh and i have email updates every 2 hours. Thats pretty remarkable for a smart phone.
BUT, if i am to browse the internet, listen to internet radio, or have an instant messaging program open, the battery drains at least 10% every hour! Thats horrendous! What is the point of a 3g smart phone if i cannot really use it because the battery will die if i do?
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Click to collapse
I have the phone for about 6 weeks and really didn't have too many problems with battery life until I bought a stereo BT headset and started using it in the last week or so. I had the battery literally drain to nothingness twice this week already in a matter of hours. And no, it wasn't off hook or on Wifi or left playing something. One time it was actually plugged in to a USB charger!
Do you use an A2DP headset or leave your BT active?

Dont get me wrong guys. I am aware the battery does drain when i do use it. Yes, i did do the most tweaking i could possibly have done to lengthen my battery life, but lets face it, streaming youtube videos through the youtube app will drain the battery 10% an hour.
The one thing that gets to me is why instant messaging programs drain the battery as fast as youtube streaming.
I did not make this thread to ask for help though, just contributing my 2 cents to my experience with the Raphael.

10% an hour??? Howd you fit a powerplant in your phone?? My battery drops to 50% in 20-30mins if I watch youtube movies. Are you watching in HQ?

well maybe more than 10% but definitely not 50% in 20 minutes lol.

My battery seems decent, I conditioned it by draining it to 1% and charging it to 100%, draining to 1% charging to 100% etc for the first few cycles. Basically I didn't charge it until it was drained. It doesn't hurt to condition, but I think it's just superstition by now, many people say modern Li-On batteries aren't supposed to have memory.

There are several threads about battery life around here already, no need to start a new one.

Again with the Battery

Is anyone that is having battery issues running Adao Task Manager and Battery Status Pro?
I just factory reset my phone and I got 24hours of batter life. About 8 standby but a good deal of texting, web, some calls and some you tube.
I installed Task Manager and Batter Status Pro last night and my battery this morning went down 15% in about 1hr.
I uninstalled these today and will post again but has anyone else seen big battery drain from these apps or does anyone that is having issues running something similar?

I have been playing with the battery for about a week now.
For me this phone runs pretty good during stand-by. I would have about 2-3% drop for a whole night (7 to 8 hrs), with Google (push), Twitter and weather syncing.
The problem is when you use it, it drops like crazy. When I read news or surf the web, it would drop 1% every 1 or 2 min.
This morning I read an ebook, with black background for about 30 min, it dropped about 3%.
So basically i think the screen, data connection, and non-black background are the ones that kill the battery.

Yea, I agree, the S-AMOLED screen in this thing is an energy hog. OLED's are supposed to be more energy efficient than typical LCD's but I'm just not seeing it. Whenever I look at battery usage stats it shows the display at 70-75% of battery usage. Thats ridiculous. I have until the 18th, but I'm quickly leaning towards returning this and just getting an iphone4. This phone is becoming more and more disappointing the longer I have it.

This morning I have been uplugged 4.75hrs and used 16% no battery monitor and no app killer. Basically done the same things I did yesterday. Some Bebbled,texting, email, phone calls .
I will update tomorrow with total hours battery life for today. Would be happy if I can replicate the 24hours I got the day before installing those apps.

I got like 45 hours of battery with moderate usage during the two days. Seems fine to me, I occasionally used system panel to monitor if anything was using high and constant CPU

This is pretty typical of a 1ghz phone My nexus would last a day of heavy usage, 2 days if i use it lightly. We need to wait for undervolted kernels to be developed xD
Also, it really helps if you disable 3G when you don't use it. This allows me to get 3-4 days of light usage out of my nexus. I haven't played with the Captivate long enough to know how much of a difference this makes on this phone though

when you guys refer to "stand by", what exactly do you mean? Just screen off/phone idle? The battery usage on my phone when I use it seems to be OK even if not amazing, but it continues to sap life from the battery when I'm using it at an alarming rate.

Standby is when the phone is idle/screen off/locked.
The display is definitely power hungry. Using the Power Control widget that comes installed definitely has helped with battery life. It will let you toggle WiFi, BT, GPS, Data Sync, and Brightness (at 3 levels). When I'm not using anyone of those, I turn it off. When I'm indoors, I'll set the brightness to the lowest level. I'm usually at my desk when I'm streaming music, so I'll have it plugged in.

derek4484 said:
Yea, I agree, the S-AMOLED screen in this thing is an energy hog. OLED's are supposed to be more energy efficient than typical LCD's but I'm just not seeing it. Whenever I look at battery usage stats it shows the display at 70-75% of battery usage. Thats ridiculous. I have until the 18th, but I'm quickly leaning towards returning this and just getting an iphone4. This phone is becoming more and more disappointing the longer I have it.
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Actually they are more energy efficient on black screens, But screens with a lot of white in them suck battery bad.

alphadog00 said:
Actually they are more energy efficient on black screens, But screens with a lot of white in them suck battery bad.
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Click to collapse
This is true the white screens burn the battery etc. I just wanted to let everyone know what I did to make my battery last more that 24hrs.
First, read the Wiki guide and apply some of the battery saving tips.
Second, UNINSTALL a program called "gReader" created by noinnion. This program is a huge battery hog! At least it was for me.
Hope this helps.

Well I guess I am one of the "lucky ones" Im running a live wallpaper and have not run my battery down since the 1st day. Right now Im at 40% life and at 15 Hrs 30m since unplugged. This is with checking facebook, twitter, email, phone calls, internet browsing\video watching and following the steps for the GPS fix. The only thing I have done is install ATK on the phone, besides that its all stock.
One thing I know is a huge battery drain is Time without Service. Check that stat and see if you have anytime at all without service, if so, I am pointing to that as a major drain on the battery. I know currently I have 0% Time without signal, my fiancee however is usually in the 20+% range and her battery drains like many reports I have seen here (she has an EVO).....

Yesterday I only managed 16 hours. Web, Email, A bluetooth file transfer, short bit of gaming. I have about 5% of the cell standby time (26%) without signal. My girlfriend has the Aria which is running Android 2.1 also, has all sorts of widgets, haptic feedback on and can make it at least 24 hours. I get that it has a smaller screen but it is also an LCD. Shouldn't the Super Amoled be saving our battery some display consumption.

i get about 14 hours or so moderate usage and at the end of the day, i have about 35% left at night.

If you detail the "Display" usage in the battery usage details how many minutes has your screen been on? Mine says 1hour 2mins ...this is for 8 hours of running time. My display is using 50% of the battery (which is at 68% now).

W00t W00t today I have reached a new high 2 Days 6 hours and 29 minuts with 12% battery left.....

What I have found is keeping Wifi on while I am at work and home like almost doubled my battery life. Which is great that I can use Wifi all day and not drain the battery so fast like my Fuze. Right now been off charger since 7:30am and I have 84% left. Yesterday after 9 hours I was still over 50%. For me its better than any other smartphone I have owened.
I used manual brightness, (swipe notification bar), turn off GPS/BT. black wallpaper and set Wifi to never sleep. Also the power saving mode in settings is off for other reason and doesn't affect battery.

At 18% right now and it's been off the charger for about 30 hours. I noticed yesterday that while I was connected to wifi at home (with Y5 app), it was draining faster than when I was connected to 3g. Did some tested back and forth and JuicePlotter clearly had a noticeably steeper downward slope for when wifi was connected than when it was using 3g. Weird :\

How long your battery lasts with heavy use? VOTE!

As stated above, I'm curious what the answers will be.
We obviously can't define "heavy use", but I think everybody gets the point

I'd like to ask the 7-8 guys how they do it?

Soniboy84 said:
I'd like to ask the 7-8 guys how they do it?
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I use auto brightness.
Also, when I got the TF I did the whole break-in thing. It was in the manual.
Now, if you want to get better life you can reset your lithium ion battery. Use it till its below 5%, maybe even go to 0%, then charge it to 100%.
Do this atleast twice back to back. You should see your life grow.
Also, never over charge it, and never leave it charging at night. Even though some people will tell you it 'stops' charging once it hits 100%, it actually goes to trickle, and trickle or not, its still over charging it.

denverseven said:
I use auto brightness.
Also, when I got the TF I did the whole break-in thing. It was in the manual.
Now, if you want to get better life you can reset your lithium ion battery. Use it till its below 5%, maybe even go to 0%, then charge it to 100%.
Do this atleast twice back to back. You should see your life grow.
Also, never over charge it, and never leave it charging at night. Even though some people will tell you it 'stops' charging once it hits 100%, it actually goes to trickle, and trickle or not, its still over charging it.
Click to expand...
Click to collapse
Thanks for the answer,
I unfortunately don't have the manual with me, but true, I just got the tab yesterday. So do you think in time it will improve? What is that break thing you mentioned?

Soniboy84 said:
Thanks for the answer,
I unfortunately don't have the manual with me, but true, I just got the tab yesterday. So do you think in time it will improve? What is that break thing you mentioned?
Click to expand...
Click to collapse
Mine has also got better only thing that kills the battery is playing Galaxy on fire 2 other than that i watched two 2 hour long movies and still had 40 % left

denverseven said:
I use auto brightness.
Also, when I got the TF I did the whole break-in thing. It was in the manual.
Now, if you want to get better life you can reset your lithium ion battery. Use it till its below 5%, maybe even go to 0%, then charge it to 100%.
Do this atleast twice back to back. You should see your life grow.
Also, never over charge it, and never leave it charging at night. Even though some people will tell you it 'stops' charging once it hits 100%, it actually goes to trickle, and trickle or not, its still over charging it.
Click to expand...
Click to collapse
Manual says "to prolong battery life fully charge the battery for up to 8 hours when using the Eee pad for the first time and whenever the battery is fully depleted" Often wonder where you get these post that say don't leave it charging for more than 2 hours.
Auto brightness is really dim on my old eyes
BTW I have a dock and get a lot more than 7 or 8 with it ...very close to the 15 or so they say ..it is according to what your doing...if your playing games, watching flash or movies your mileage will vary

Same here, I usually just watch movies, (occasionally getting distracted by some tower defense game), but apparently my overall usage is due to the screen brightness. I had it on autoadjust for a while in the beginning (lasted like 8 hours) but then I don't like (is there an adjust option for autoadjust? it'd be a lot better if it made it just 10% brighter than it usually sets it..) the autoadjust, so now I usually have it on like 60-100% brightness and I still get 6-7 hours on it. Then i just dock it for another couple of hours.

Hm... too bad I like bright screens
So maybe that's the reason mine only lasts 3-4 hours :S
We'll see later on, maybe it will improve!

Soniboy84 said:
Hm... too bad I like bright screens
So maybe that's the reason mine only lasts 3-4 hours :S
We'll see later on, maybe it will improve!
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Click to collapse
Wow. I have mine cranked and it lasts well over that. Closer to 6 with consistent video watching.

i mostly use mine to browse online and music etc,i get around 9 hours with auto brightness
*added*
i used systempanel to monitor when i sleep to check usage,its between 1~3 percent for the cpu, battery life stays flat lined. cpu activity averages 30% while device is at 100%. i use advance task killer and juice defender and disable connections and sync etc.

well one thing for sure, my mifi died before my transformer died, so i roughly say 6 hours ++. when in music, it saves a lot of battery.

DilloDroid said:
Often wonder where you get these post that say don't leave it charging for more than 2 hours.
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2 hours is silly. Mine takes at least 2.5 to charge to 100%. I'm not sure where you've read that, but don't believe it! lol.
Li-ion batteries are great because they are extremely flexible and charging them like 5 times a day isn't a bad thing like it would be with an older technology.
But they are still susceptible to overcharge issues because they generate heat when charging, and that heat changes the composition of the battery, which makes it last less and less over time. That's why li-ions hold roughly 50% of their charge after 1.5 years of use.
And that's why one shouldn't overcharge it.

about 6~7 on stock..just recently tried prime 1.7 so will check for any changes

Does Netflix count as heavy usage? if so then I get about 8 hours

I use mine to browse and to remote desktop to my PC. Sometimes i use gchat and other times play a game or two. I get around 7-8 hours from the eee pad only. With the docking i get much more.
I use auto brightness, and wireless off when screen is off. This way i can leave my tf up and running all night and is ready to be used at any time. The main power consumption are the screen and the wireless on my usage profile. Both together consume more that 70% of my battery.

Is it possible to switch off the wifi automatically when the screen goes off?

Yes, of course. Go to wifi-properties, then choose extended (on German: "Erweitert") at the top right and there you can choose your setting.
(I've got a german TF - there it is "WLAN-Einstellungen"->"Erweitert")
With auto-brightness and wlan-off on screen-off 9 hours is no problem.
Great Tablet

I run Clemsons V4 Final, no dock and have the screen timeout set at 30 minutes. I didnt pay attention to the recommended battery stuff in the manual. And usually leave mine on the charger all night to be sure I start the day at 100%. I use my TF all day for work, taking notes, surfing and so on. I generally get home with 40%, if I dont play Angry Birds. I have played just music for 8.5 hours continuous with a 15% drop in battery.
Not iPad performance but still a keeper.

I put 6 hours of HEAVY use, but I usually get a full day's usage out of it since I keep my pad tethered to my charger at my desk all day at work.

tried the break-in charging thing (drain to 0% then charge it for 8-9 hours). My battery life changed drastically. Did it only once but ill charge it like that again when it depletes to 0%. It running now on its 3rd day with minimal to moderate use (28% as I am writing this). Will post battery drain per hour once done with the 2nd charging
No Dock, 2 Mobile Data Application frozen via Titanium back up

Is my battery ok?

According to some review, infinity should give 9.5 hours of play time with WIFI on. Different use results in different result for sure, but I feel like my battery life is less than that of Galaxy 10.1 and if I remember Xoom. Not matching up with iPad is understandable as no android tablet does as iPad does no multi-tasking and wifi turns off quickly after sleep. But worse than Xoom or 10.1 seems something potentially wrong with my unit.
Is there any official application that can test battery condition? In Mac, there is application called coconut battery which tells you how much of battery you can charge i.e. no battery is usually 100% of its maximal capacity and over time it loses capacity gradually but this application tells that. I wonder if there is similar for Android tablet.
By the way my usage is like reading book and comics, surfing net, not much of game. I'm in balance mode. I checked turn off WIFI while in sleep. I did 1GB+ file transfer over the WIFI. With this overall screen time of 5 hours and I only have 15% battery left. I probably won't make it to 6 hours..

Ehhh... as far as I can tell, the Prime (and consequently, the Infinity) should outrun any iPad as to battery life. What's your scree brightness?

I get like 6-7 browsing, 9-10 reading pdfs and much less gaming (balanced mode, brightness 30%). You can see some averages and estimates in the Battery HD app / widget.
---------- Post added at 01:23 AM ---------- Previous post was at 01:22 AM ----------
MartyHulskemper said:
Ehhh... as far as I can tell, the Prime (and consequently, the Infinity) should outrun any iPad as to battery life. What's your scree brightness?
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Outrun iPad?? Maybe with the dock. Sorry...

Outrun iPad?? Maybe with the dock. Sorry...[/QUOTE]
On the crApple forums, loads of people report a consistent 7 hours of use for the iPad3 (or the new iPad, or whatever the thing is called). The TF700 should eat it alive with the dock attached, whereas they'd come out about equal when going face to face 'barehanded'.
EDIT: nice test: http://www.tomshardware.com/reviews/galaxy-tab-android-tablet,3014-11.html of the OLD iPad2 vs. Transformer 101. Yes, agreed, it is old, but the iPad3 has double the power consumption and only 70% more battery capacity. You go figure.

MartyHulskemper said:
Outrun iPad?? Maybe with the dock. Sorry...
Click to expand...
Click to collapse
On the crApple forums, loads of people report a consistent 7 hours of use for the iPad3 (or the new iPad, or whatever the thing is called). The TF700 should eat it alive with the dock attached, whereas they'd come out about equal when going face to face 'barehanded'.
EDIT: nice test: http://www.tomshardware.com/reviews/galaxy-tab-android-tablet,3014-11.html of the OLD iPad2 vs. Transformer 101. Yes, agreed, it is old, but the iPad3 has double the power consumption and only 70% more battery capacity. You go figure. [/QUOTE]
I agree with the table as I owned Xoom, Galaxy 10.1, and currently have iPad 2 and Infinity. I don't know about New Ipad. But in my experience iPad 2 always give solid 10 hours or so but again that's probably not fair comparison against Infinity which uses HD screen. So I was going off of http://www.engadget.com/2012/06/25/asus-transformer-pad-infinity-tf700-review/, which shows Infinity having superior battery than the most of newer versions of Xoom 2, Galaxy 2 10.1 etc. I have no doubt with Docking station, Infinity's battery life would be unbeatable except by transformer prime.
But my concern was actually if my unit battery is semi-defective and not charging to full way.
I usually have my screen brightness turned all way down; whereas, above test is 50%... so I was surprised my result. Unless 1GB transfer consumed so much or overnight standby consumed a lot (despite turned off WIFI box checked..). Since we cannot really go off by battery screen on ICS with inifinity, which shows WIFI more than screen... I just have no good way to assess the condition of my battery...

HoushaSen said:
I agree with the table as I owned Xoom, Galaxy 10.1, and currently have iPad 2 and Infinity. I don't know about New Ipad. But in my experience iPad 2 always give solid 10 hours or so but again that's probably not fair comparison against Infinity which uses HD screen. So I was going off of http://www.engadget.com/2012/06/25/asus-transformer-pad-infinity-tf700-review/, which shows Infinity having superior battery than the most of newer versions of Xoom 2, Galaxy 2 10.1 etc. I have no doubt with Docking station, Infinity's battery life would be unbeatable except by transformer prime.
But my concern was actually if my unit battery is semi-defective and not charging to full way.
I usually have my screen brightness turned all way down; whereas, above test is 50%... so I was surprised my result. Unless 1GB transfer consumed so much or overnight standby consumed a lot (despite turned off WIFI box checked..). Since we cannot really go off by battery screen on ICS with inifinity, which shows WIFI more than screen... I just have no good way to assess the condition of my battery...
Click to expand...
Click to collapse
Are you sure that you Infinity is going into deep sleep? There are many cases where a "rogue" app will cause the tablet to never enter deep sleep, thereby draining the battery much faster in standby. You can check for deep sleep with CPU Spy...
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2

I still need to do a scientific test but today at work my screen was on for 3.5 hours and the tablet was off the charger for 11.5 hours. My battery was down to 32%. My screen brightness is IPS off and fixed at around 90%. Looks lovely
I ran my xoom for 2 hours even and 2 hours off charger. During this time however I downloaded a bunch of apps, loaded up all the apps, ran weather bug looking at weather maps, and did some browsing. I was using it continuously to get the feel compared to my infinity.
Anyway after all that the xoom was around 77% batter remaining.
I know that when I tested my xoom soon after I got it I could get around 6.5 hours on the screen before it ran down. On standby it barely uses anything. I'm guessing I use it at work around 3-4 hours. Sometimes I'd forget to charge my xoom and the next day it would usually get me though most of the day... To maybe 1-2pm and I come in at 6:30 so thats almost my whole day.
So yes the battery is definitely less. Tomorrow I'm putting the screen brightness on auto. Thats how had the xoom so maybe it will be a better comparison. Certainly looking at battery usage the screen was using a lot of power. What looks REALLY odd however is that wifi is my number one battery usage.
That just doesn't look right does it? Now I do have it on wifi all day so in this case for 11.5 hours. But I don't on my phone wifi is like 3%... Maybe my tablet and problems are related to an issue with wifi?
Anyone else keep their wifi on notice a big power drain on wifi?

check to see if you have a battery leak with some app. turn gps off, dont use auto brightness lol. keep it down more like 65 % indoors you dont need more than that. use the app called juice defender and make sure you kill off anything your not using. google a list of top 10 thigns to do to android to make battery last longer

ethion said:
Maybe my tablet and problems are related to an issue with wifi?
Anyone else keep their wifi on notice a big power drain on wifi?
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Click to collapse
Yes - I do. My TF700, no dock, seemingly handles just about 4 - 5 hours of activity (not stand by but actual use, be it video, audio, browsing, etc), and when I look at the battery stats under settings - it shows that over 80% went into wi-fi.
I have heard that to make up for the weak Prime's reception ASUS overpowered Infinity wi-fi, so it sucks power out of the battery pretty fast.
I am also assuming that as usual, based on latest update, serial number, QA, etc, the behavior will be different for different tablets, some will see it and some will not.
Good news is that these things are fixable by a soft patch, so we shall see something released by ASUS if many people complain.

So I still have to do more testing, but I guess my tablet is not defective (at least in regards to the battery). i do get pretty much the same result as others replied me back here. After checking the ASUS main site, 14 hours with Dock was measured in Power Saving mode, 720p movie, WIFI on.
So key here was indeed power saving mode, which I was not using. i just switched to Power Saving mode and just looking at 10% drop mark, it seems to go ~50 minutes, which equates similar to what 9.5 hours one site suggested. Application (as far as what I use) runs fine and seems as smooth BUT main thing noticed here is refresh rate of the screen in power save mode seems much lower so when I go back to main screen, i can see some flickering.
But it's great to be able to boost battery life by couple hours and more.

With the device off - - after a full charge, my battery says 97 percent....NEVER 100%. With the charger plugged in, while using the device, I get a max 98 percent charge. Anyone having a similar experience? Does the device actually use 2% of
the battery when turning it on? I'm befuddled.

xRevilatioNx said:
With the device off - - after a full charge, my battery says 97 percent....NEVER 100%. With the charger plugged in, while using the device, I get a max 98 percent charge. Anyone having a similar experience? Does the device actually use 2% of
the battery when turning it on? I'm befuddled.
Click to expand...
Click to collapse
Do you usually drain the battery all way down after each use or close to it?

Got my tab yesterday. After charging I did some I would say normal usage, browsing, installing some apps, transfering data, watching video and a cam chat for about 2 hours on skype, standby over night.
I used balanced mode, auto brightness, external speaker on highest volume, sometimes superips (but not for long), always had the external sdcard mounted, always wifi on, gps on, autorotate on.
I had >14h without the dock, should have made a screenshot.
I will do a drain test when I charged the battery 4 or 5 times.
---------- Post added at 01:48 PM ---------- Previous post was at 01:46 PM ----------
xRevilatioNx said:
With the device off - - after a full charge, my battery says 97 percent....NEVER 100%. With the charger plugged in, while using the device, I get a max 98 percent charge. Anyone having a similar experience? Does the device actually use 2% of
the battery when turning it on? I'm befuddled.
Click to expand...
Click to collapse
Also when the device is charged up to 80% disable everything, wifi, gps and so on.
Then suspend the device and do not turn it on for at least 1 hour.
I do it that way and get 100%.

HoushaSen said:
Do you usually drain the battery all way down after each use or close to it?
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Click to collapse
Got my replacement yesterday. That was my first full charge. I allowed it to charge to 75% then turned it on (while still charging) and set it all up. I had the charger plugged in for 10 hours while playing around with it. Went to bed, turned it off and let it charge for another 4 hours. When I turned it off . I noticed it was only at a 97% charge.
I'm using it now to let it drain to zero. Then will do another full charge. I've only had it on for 90 minutes on balanced setting and the battery is already showing a 40% drain.

For those worried about the battery only being charged to 97-98%: it's normal, and a way to conserve your battery. Li-ion batteries don't like going to 100% full charge since it increases the temperature a lot and in the long term reduces their capacity. So the battery gets (very shortly) charged to 100% (or very close to it), then it will decrease slightly to high 90s and the charger will go into maintenance charging, keeping it close to 100% charge.
Some manufacturers "masquerade" this by setting the percentage to show 100% even if it really isn't. Keeps users from losing sleep over trivial things like that
The batteries don't like deep discharges either, so there's no use emptying them completely. Top them off whenever you can. Anywhere in between 40% and 80% is good.
TL;DR: Don't worry, the battery is fully charged even though it says 97 or 98%. Don't empty the battery completely.
Edit: Some useful information regarding Li-ion batteries here, http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries/

Thanks for this, but there was some discussion with these studies already. But probably it's right not to do anything extreme.
That being said, we probably have to admit that there is a reason to DISCHARGE and CHARGE FULLY a few times - so that all the apps/widgets that measure battery capacity, estimate life etc. could learn all they can by more (and more exact) data.

Einride said:
For those worried about the battery only being charged to 97-98%: it's normal, and a way to conserve your battery. Li-ion batteries don't like going to 100% full charge since it increases the temperature a lot and in the long term reduces their capacity. So the battery gets (very shortly) charged to 100% (or very close to it), then it will decrease slightly to high 90s and the charger will go into maintenance charging, keeping it close to 100% charge.
Some manufacturers "masquerade" this by setting the percentage to show 100% even if it really isn't. Keeps users from losing sleep over trivial things like that
The batteries don't like deep discharges either, so there's no use emptying them completely. Top them off whenever you can. Anywhere in between 40% and 80% is good.
TL;DR: Don't worry, the battery is fully charged even though it says 97 or 98%. Don't empty the battery completely.
Edit: Some useful information regarding Li-ion batteries here, http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries/
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Thanks for the info! Good to know that you don't have have to do a complete battery drain, initially. Or ever for that matter.. :good:

[Q] Worried about battery, new tablet

I have only used my Galaxy Note tablet a few days, and I am probably using it approximately 5-6 hours tops. It is needing recharged every day! It takes hours to charge and then I only get 5-6 hours usage? Is this normal?
I would appreciate any response.
Thanks.
Galaxy Note 10.1

Try going into setting and then battery see which application is draining the battery and get rid of it.
Note has one of the best batteries around but if you use non stop for heavy application like gamming you should get between 8 - 10 hours of actual usage.
If not then may be there is an issue with your charger or battery get it checked and replaced
Also Note takes a long time to charge around 5 - 6 hours

Hmm.. I use it and get about 8 hours +/- depending what I do with it. I normally use it to take notes for about 5 hours (around 3 hours of actual note taking, 2 hours of doing scratch work for homework on it), and I'm browsing Reddit for the rest of the time. I've noticed that I've had to charge it more often lately, but I've been using it to watch Netflix mostly in the last couple of days.
In my experience with the Asus Transformer, I had to charge almost everyday as well because of my high usage. What do you normally use it for?

A day's heavy usage is normal.
Charge from 0-100% takes about 5 hrs for everyone.
In simple terms, the Note 10.1 has a large capacity
battery that takes a while to charge. Rechargeable
batteries lose their ability to hold charge over time,
but that time is measured in months and years.

I am not sure, maybe I am reading this battery meter wrong. When I go to settings and open battery, it says "51% discharging" and then below that says "15h 12m 59s on battery."
We are mostly using the tab for web surfing, and watched a few Youtube videos. I don't believe anyone has even watched a full show on it yet. It has only been in use since Thursday night. I am not sure what to think.
Doesn't the 51% represent how much battery life is remaining? And what does the other stat (15h 12m 59s on battery) represent?
I appreciate any help or advice.
Also, The only items it shows below that is Screen & Device Idle. Screen says 99% and Device Idle says 2%.

99% usage for screen is quite odd. Maybe try turning brightness down or trying the power saving option for screen. Also, and this may sound silly, but if you haven't rebooted it, that is worth a shot, sometimesthings just drain until rebooted.
Sent from my GT-N8010 using xda app-developers app

shopndrop said:
I am not sure, maybe I am reading this battery meter wrong. When I go to settings and open battery, it says "51% discharging" and then below that says "15h 12m 59s on battery."
We are mostly using the tab for web surfing, and watched a few Youtube videos. I don't believe anyone has even watched a full show on it yet. It has only been in use since Thursday night. I am not sure what to think.
Doesn't the 51% represent how much battery life is remaining? And what does the other stat (15h 12m 59s on battery) represent?
I appreciate any help or advice.
Also, The only items it shows below that is Screen & Device Idle. Screen says 99% and Device Idle says 2%.
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To answer your questions
51% is the amount of remaining battery.
15h 12m 59sec is just what it sounds like. It's the time the tablet had been off the charger.
Most of the time your screen should be the highest. Here is what mine looks like. It's been a light day.
Sent from my GT-N8013 using Tapatalk HD

Please help me figure out if this kind of usage seems appropriate for battery drain. I am keeping a little log to see how fast it is draining. I just cannot understand if this is normal. Here is a small sample for this evening to see if it seems normal. I only been surfing some, no watching anything.
1109p at 99% battery
1130p at 94% battery
1155p at 90% battery
under settings, battery, all that says is screen 100% no other items listed below
Is it normal to get 5 or 6 hrs then have to recharge even if you are just surfing? I thought people went for days without charging this. I have never owned a tablet before, but I never have to charge my computer or phone this much and I use both for more time than this and not had to recharge this soon.
I am just trying to understand if I have something se tup wrong, or have a faulty tablet.
I truly appreciate all the help from everyone. Thanks.

shopndrop said:
Please help me figure out if this kind of usage seems appropriate for battery drain. I am keeping a little log to see how fast it is draining. I just cannot understand if this is normal. Here is a small sample for this evening to see if it seems normal. I only been surfing some, no watching anything.
1109p at 99% battery
1130p at 94% battery
1155p at 90% battery
under settings, battery, all that says is screen 100% no other items listed below
Is it normal to get 5 or 6 hrs then have to recharge even if you are just surfing? I thought people went for days without charging this. I have never owned a tablet before, but I never have to charge my computer or phone this much and I use both for more time than this and not had to recharge this soon.
I am just trying to understand if I have something se tup wrong, or have a faulty tablet.
I truly appreciate all the help from everyone. Thanks.
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Have you tried changing the brightness to about 30% (about the same as what I have it on and I get about 3-4 days charge with light usage)? Also rebooting, uninstalling recent apps, enabling/disabling power-saving options?
If nothing else works, try a factory reset and just use it like normal with no extra downloaded apps from google play. Try that for one charge and if it's still bad, there must be something wrong with your unit.
Would you be able to take a screenshot of your battery status window? (hold spen button and hold spen on screen for 2 seconds to take screenshot). It could help us determine the problem. If you could get screenshots of both the main window listing the things that have used battery, as well as the window after you tap the battery graph, that would be great.

Mate, I don't honestly believe you have a problem... I use my tab for around 10hrs/day and I need to recharge it... I do use it for mostly video files...
I also have the 3g version. What's yours? If it's 3g and you are in an area where you don't have a good signal then the modem will be looking and consuming battery power...
Even though this tablet has a large battery, it is usually used up within a day or 2... Try leaving your laptop on all day, it won't last too long either...
That's the main difference between a laptop and a tablet (even if the laptop is in hibernation it will still kill the battery eventually).