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First, the set up.
I have an Incredible running Skyraider 2.52 with the 2.6.32.15-adrynalyne kernel. I use SetCPU to set some rather aggressive battery preservation, chief among them being the profile that sets the CPU to 245mHz on screen off (using the Powersave scaling so as to eliminate CPU polling). I have Autokiller set to near absurd levels (the Ultimate preset). I even use Autorun Killer to disable some nonsense apps from starting at boot. Needless to say, battery is a priority.
Also, I should note that I am using the 1750 mah Seido battery.
This morning, I charged my phone to 100% (even a little beyond that, as I charged it with the phone off, but not until I hit the green). I unplugged the phone from my car charger at 9:20 AM. Wifi, Bluetooth, and mobile network were all off. I literally did not touch my phone for the next ten minutes, and yet...
By 9:30 AM, I was at 90%!
I quickly started up Froyo Task Killer, which allows me to force stop programs through Android's own task management. I closed several useless but likeable apps (like ONN and G4) and put my phone back in my pocket.
By 12:47 PM, after not touching the phone again, I was at 80%.
Clearly, you can see the difference in battery usage while otherwise in standby.
Is this a clear case for killing tasks, or is there something else at play? I know that task killers are a cause for serious debate, and 2.2 doesn't play nice with them, but this is a pretty weird case.
You're making an assumption that the battery discharge rate (or rather the displayed rate) is linear. In my experience, this is not the case.
You make an excellent point. However, in most ordinary circumstances, and certainly while running stock Eclair, I usually found that the first 10% battery drain took longer, certainly longer than 10 minutes.
Either way, 1% per hour is, all strange battery magic aside, pretty remarkable for a phone that is in standby with screen off in pocket. Especially when given the lengths I've gone to in attempts to extend said battery life.
once froyo hit i uninstalled my task killer.... haven't looked back since.
I currently run SystemPanel by NextApp.
It will prove to you that task killing is practically a placebo but I highly recommend it just to be aware of whats ACTUALLY killing your battery.
I use the stock battery and the OEM 1500mah. I am pretty happy with what I can get out of the extra capacity battery.
Try turning off 3G when you don't need it using the HTC widget.
If you can't stand the stock apps that always start up on your phone but don't want to delete them do as I did and get the full version of titanium backup (3.99) and freeze all the apps. Out will pretty much just like the name says, freeze the apps. You can then thaw them out when you need them.
I got almost 2 days up time and like 12 of those were up on the 1500 battery. Now I have the 2150 i am at 50 hours up and 10 hours awake with still 50 percent to go, that's first charge too, can't wait till it breaks in
Oh and I was reading somewhere that one of the roms has a problem like that. It might be the skyraider
Sent from my Incredible using tapatalk.
mihneagabriel said:
If you can't stand the stock apps that always start up on your phone but don't want to delete them do as I did and get the full version of titanium backup (3.99) and freeze all the apps. Out will pretty much just like the name says, freeze the apps. You can then thaw them out when you need them.
Click to expand...
Click to collapse
Autostarts would probably be an easier way of doing this.
kensikora said:
You make an excellent point. However, in most ordinary circumstances, and certainly while running stock Eclair, I usually found that the first 10% battery drain took longer, certainly longer than 10 minutes.
Either way, 1% per hour is, all strange battery magic aside, pretty remarkable for a phone that is in standby with screen off in pocket. Especially when given the lengths I've gone to in attempts to extend said battery life.
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Click to collapse
why would you bother having a smartphone if your intent is to leave it in the pocket? I get about 24+ hrs uptime one one charge (stock bat). Generally on WiFi, GPS, and Max Brightness for half of it.
Charge at work since I'm at my desk and no problems. Battery life is great, but if you don't want to use the phone in attempts to get max life, seems quite pointless to own such a powerful device.
Skyraider 3.1
You can go into battery info in the settings and see what is causing battery drain.
In my experience, most drain is when I'm inside a building with poor reception and my phone is on overdrive trying to find signal. Usually I turn on airplane mode and use WiFi if that's the case.
Sent from my ADR6300 using XDA App
Maybe its the kernel. Also I would stop killing the apps, not to save battery but because since they were stopped by the user, the Android system might start them up again almost instantaneously. But this depends on core processes and weather Android is done processing any info or other stuff from that app.
Sent from my ADR6300 using XDA App
MMBosstones86 said:
why would you bother having a smartphone if your intent is to leave it in the pocket?
Skyraider 3.1
Click to expand...
Click to collapse
I am not aiming for battery life alone, but I like to leave work and not need to recharge for an hour before I head out. I leave it in my pocket at work because, well, I'm at work. Although I do usually get in a few levels of Angry Birds or Shoot U.
The question is, how can I minimize battery use when my phone is idle so that I have the battery to screw around with it when I want to or have time.
Sent from my ADR6300 using XDA App
mihneagabriel said:
If you can't stand the stock apps that always start up on your phone but don't want to delete them do as I did and get the full version of titanium backup (3.99) and freeze all the apps.
Click to expand...
Click to collapse
I never knew what that did. I knew the feature existed, but hadn't bothered looking into it. I already bought the full version for totally hands-free installs, so I guess I can now take care of Peep and Flickr.
sl0wd0wn said:
Autostarts would probably be an easier way of doing this.
Click to expand...
Click to collapse
I had never heard of Autostarts. I seem to find that any apps that aim to disable startup entries always fail to list the apps I am most interested in blocking, but for 90 cents, I am definitely willing to give it a shot.
Edit: I haven't had a chance to determine its effect on battery life, but Autostarts is brilliant. It makes so much more sense to actually change startup entries than to try and stop a task after it starts. I also was unaware of how many events trigger apps to start. That is one powerful app.
Sent from my ADR6300 using XDA App
The 10% drop at the beginning has nothing to do with apps or task killing. It's a bug, the battery isn't telling the software the correct percentage it is at. Killing apps won't do anything to fix it.
If you want to 'fix' it, do a bump charge. Turn off your phone when it hits green, keep it charging till it hits green again.
ok so I used my phone for about 3 hours last night tweaking things and playing with stuff and didn't charge it overnight and used it a bunch today and the battery indicator looked like it was at about 70%. probably not accurate, but the fact that it's even still on amazes me because it's probably got 8 hours of playing with it and 6 hours of standby and still going strong.
I think a full drain then a full charge might reset the battery indicator for accuracy, I wish we had like a "current widget" for WP7 to see the ma drain.
how you guys doing on HD2 WP7 battery drain? Mine seems to be even better than WM6.5
I have the exact opposite experience as you. My HD2[7]'s battery life is crap. It was fully charged last night and I had left it in my drawer with the Wi-fi off. After coming from work a half hour ago, I saw that the battery was almost drained.
Also, shouldn't the battery icon show the plug when the phone is being charged? My phone is on and booted into WP7, the red light is showing but the battery icon shows no animation or the plug. EDIT: WTF IT FROZE ON ME, I had to remove the battery!
Finally, what's with the random reboots? I've seen 2 already.
sclip said:
Finally, what's with the random reboots? I've seen 2 already.
Click to expand...
Click to collapse
I think its something related to the SD cards you are using.
If the Sd card you are using is not compatible with WP7 then you will get random reboots.
And the main thing here is that there is no specific way to know which SD card will work and which wont work with WP7
By the way my battery is somewhat draining faster than the Android I was using on my HD2
05081983 said:
I think its something related to the SD cards you are using.
If the Sd card you are using is not compatible with WP7 then you will get random reboots.
And the main thing here is that there is no specific way to know which SD card will work and which wont work with WP7
Click to expand...
Click to collapse
we know which sd cards work on official wp7 devices.
nrfitchett4 said:
we know which sd cards work on official wp7 devices.
Click to expand...
Click to collapse
What I meant to say was, we don't know which SD card will work with WP7 on HD2.
I wasn't talking about the official WP7
Well the stock 16gig TMOUS card works just fine.
my battery seems to be fine, i use my scale based on my school schedual. with android from 7 am to 4 pm around 50 to 40 percent.
today running wp7 i unplugged it around 8is and about 6 is it had very little black on the battery icon. im going ot charge it up fully, then kill it, to see if that helps reset the battery stats
Well when i first flashed WP7 my battery was over lasting.. After i manually rebooted because i just felt like doing so, my battery has started to drain a little bit to fast.
Are there any marketplace apps that can monitor this stuff yet?
Update: Last night, after making sure that my phone was fully charged, I turned off the wifi and removed the SIM card and didn't touch the phone again until a half hour ago (about 12 hours standby time in total). The indicator is showing about 50% battery life remaining. This SUCKS, and any helpful comments about this will be appreciated.
just considering its not supposed to be on the phone...
also what theme are you using
and since microsd polling it may have a lot of impact on standard battery life...
plus, let's be real, it is an htc...they're not battery efficient
domineus said:
just considering its not supposed to be on the phone...
also what theme are you using
and since microsd polling it may have a lot of impact on standard battery life...
plus, let's be real, it is an htc...they're not battery efficient
Click to expand...
Click to collapse
Here are my settings: Dark background theme, purple (hate the color normally, but somehow manages to look nice on the HD2), 30 seconds lockscreen timeout, Wifi off, Location off.
I tried removing the MicroSD, but the phone then becomes unusable with frequent freezes and reboots. I'd love to check if the card is affecting battery life if the damn phone would let me to.
sclip said:
I have the exact opposite experience as you. My HD2[7]'s battery life is crap. It was fully charged last night and I had left it in my drawer with the Wi-fi off. After coming from work a half hour ago, I saw that the battery was almost drained.
Also, shouldn't the battery icon show the plug when the phone is being charged? My phone is on and booted into WP7, the red light is showing but the battery icon shows no animation or the plug. EDIT: WTF IT FROZE ON ME, I had to remove the battery!
Finally, what's with the random reboots? I've seen 2 already.
Click to expand...
Click to collapse
HTC puts bad batteries in their 4.3" phones. They've been using 1230 mAh batteries forever (over a year). Blackberry curves come with 1150 mAh batteries so you can see what that size is somewhat optimized for: feature phones and smartphones with small non-touch screens.
Most smartphones with a 4"+ screen running Android or WP7 have 1400+ mAh batteries (the i4 and Droid X also have 1400, Galaxy S and Incredible have 1500). That's why the battery life is bad.
And it's also the reason why I've never really given the phone much consideration - the battery and the TFT LCD screen they used on it.
That being said, the battery life depends on you usage. When I used my HD2 as myprimary device the battery life was terrible. Once I got my Vibrant and used it only as a PMP, the battery life was terrific because it didn't have a SIM Card and I only used it on WiFi and to play Music and Videos.
But people who use Curve 3Gs as their primary devices and are constantly BBMing and/or SMSing people in addition to calls report days-worth of uptime (emphasis on the plural).
My battery life is on par with what it was on android (about 12-16 hours with moderate usage of web, email, facebook, and heavy twitter) and its configured the same was as my android:
1) wifi is on when I need it (maybe 20-45 minutes a day for some marketplace downloads or something)
2) location is always on
3) screen is set to manual, low and 3 minute time-out
4) I have 3 IMAP email accounts that check between every 15 minutes and every 30 minutes.
5) I have a VERY active twitter account that updates every few minutes (not sure exactly as it doesn't appear to be live tile integrated)
6) facebook and google sync
7) HTC HUB is usually running updating the weather and stocks as often as it likes
8) dark brown theme
9) ringer off and no haptic feedback
Hope that helps anyone.
I do agree that the HTC supplied battery is sub-standard. Does anyone know where I can see what the battery percentage is acutally at? I only have the icon in the top right.
Just as a bit of information, my HD7 gets significantly better battery life than my sister's Galaxy phone. Also, those of you removing the SIM, make sure you also enable airplane mode, incase the phone continues to still search for signal... Battery size isn't as important as power management, though I do agree I wish we had a bigger battery on our HD7s... we might have sacrificed a little space for it though...
I think the battery meter is off. After about an hour of playing with Netflix, Zune and watching videos with the ign app my battery meter indicated that I had a lil juice left. I went to sleep without charging the phone. I was sure it would be dead when I woke but it wasn't. I was able to get about 2 more hrs out of it while using the Zune player streaming a playlist I saw.
Sent from my HD2 Windows Phone 7 using Board Express.
There is no third party multi-tasking in WP7 and Android Users usually have more apps/services updating stuff in the background. Yes, WP7 will get better battery life than lots of Android Phones and even theHD2 with the same battery in it due to that simple fact along, nevermind all the other exceptions and the obvious disclaimer: different use patterns are different.
N8ter said:
There is no third party multi-tasking in WP7 and Android Users usually have more apps/services updating stuff in the background. Yes, WP7 will get better battery life than lots of Android Phones and even theHD2 with the same battery in it due to that simple fact along, nevermind all the other exceptions and the obvious disclaimer: different use patterns are different.
Click to expand...
Click to collapse
I have ATK or whatever it is installed on her phone, not sure if the AMOLED screen uses more juice though
Don't get me started on task killers and android. ATK may be causing the poor battery life. Those process and apps you think your killing are just gonna restart and cause more battery drain. Android does not need task killers. I suggest trying auto killer wich tweaks androids internal memory management to be more or less aggrsive. Phone must be rooted though.
Sent from my HTC Glacier using XDA App
MvP77 said:
Don't get me started on task killers and android. ATK may be causing the poor battery life. Those process and apps you think your killing are just gonna restart and cause more battery drain. Android does not need task killers. I suggest trying auto killer wich tweaks androids internal memory management to be more or less aggrsive. Phone must be rooted though.
Sent from my HTC Glacier using XDA App
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Click to collapse
I won't have much luck with that lol, her phone, her rules... I might convince her some day though
Sup sup.
Okay basically I just want to know, what's the MOST efficient way to store my HTC Battery away? I want to use a bigger battery bank as a replacement thus I want to store my HTC default batt away. I don't want to find that 1 year after not using it, it depletes 1%/s.
Any battery experts ? =)
Thanks.
Store batteries properly. If your battery will be out of use for a while, disconnect it from the phone and store it in a cool and dry but not freezing place (an airtight container in a refrigerator, but not a freezer). Don't keep it with metal objects that might move around and short-circuit the terminals. Lithium ion batteries are not rated to operate at refrigerated temperatures, so let the battery sit outside the refrigerator for at least an hour before using it again. Lithium ion batteries oxidize least when they are stored at 40% charge. Never store a lithium battery at low voltage. Recharge batteries after storage.
Click to expand...
Click to collapse
Also found this: http://www.ehow.com/how_5073544_store-cell-phone-battery.html
Thanks mate.
3 Ways to get your battery usage to normal.
Gundam00qan said:
Sup sup.
Okay basically I just want to know, what's the MOST efficient way to store my HTC Battery away? I want to use a bigger battery bank as a replacement thus I want to store my HTC default batt away. I don't want to find that 1 year after not using it, it depletes 1%/s.
Any battery experts ? =)
Thanks.
Click to expand...
Click to collapse
There're a few steps, if followed, will come up with a very good battery working in real time space.
1. First of all you must have the most suitable Radio installed on your device, the latest radio made so far is the one i'm personally using and i found it really good, not only for battery timing but also for no incompatibility with certain native functions.
2. Secondly, open your dialer and write *#*#4636#*#* and click the call button. you'd be taken to a special menu. Click Phone Information and then press the menu button followed by clicking "more" in the menu. Now disable both the data and the data connection on boot. (It would disable all the unnecessary data flowing charges made through different services being used by your device)
3. Thirdly, Install Advance Task Killer and go into it's settings and set Auto Kill Level to "Crazy" and Auto Kill Frequency to "When screen off".
Voilla, you're done.
Enjoy a very good battery timing. Mine runs almost 43 Hours!
i've tried different ones in the past when i had the thunderbolt and none made a difference whatsoever.
i see the big name one seems to be Juice Defender, but that was one that didn't do anything when i had the thunderbolt.
is there one that actually does make a difference with the Incredible 2?
The best way to save battery and maintain your usage is to make sure you don't use apps that misbehave. Using automated task killers don't really help if you are already doing this.
nimdae said:
The best way to save battery and maintain your usage is to make sure you don't use apps that misbehave. Using automated task killers don't really help if you are already doing this.
Click to expand...
Click to collapse
well, i use a program called 'Bloat Freezer' to supposedly "freeze" apps i don't use/need. other then that i have another program called 'Watch Dog' that pretty much just alerts me when an app is using a ton of CPU & allows me to kill it.
i know not to use task killers though as those 'tasks' will automatically start right back up & the process of going back & forth ends up wasting battery.
voxigenboy said:
well, i use a program called 'Bloat Freezer' to supposedly "freeze" apps i don't use/need. other then that i have another program called 'Watch Dog' that pretty much just alerts me when an app is using a ton of CPU & allows me to kill it.
i know not to use task killers though as those 'tasks' will automatically start right back up & the process of going back & forth ends up wasting battery.
Click to expand...
Click to collapse
I found the best battery saver is by things you can do.
turn off animations
turn off auto-brightness - put as low as possible, I found 50% is nice.
turn off wifi - WHEN NOT IN USE - TURN TO TURN OFF AFTER 15 MIN.
turn off mobile data WHEN NOT IN USE - OR MAKE IT SO IT TURNS OFF WITH SCREN OFF
turn off bluetooth -WHEN NOT IN USE
DO NOT OVER CHARGE, try to charge at night fully with phone off. don't leave it on the charger fully charged for a long time, (like over night).
set auto sync to 6 hours or so, or sync when open. or even better set to manual.
also a nice black background will help
all these things in the end will help you out, I get 2 days on stock battery with medium usage
Juice defender is legit I'm running the not free version and helps me out. Autostarts is a helpful app too
I don't think its gonna hurt anything to leave the phone plugged in overnight, and the dark background would only matter on OLED screens, not LCD.
Both the battery and the phone have circuitry to prevent overcharging. Leaving plugged in overnight and left on is perfectly safe.
k_nivesout said:
I don't think its gonna hurt anything to leave the phone plugged in overnight, and the dark background would only matter on OLED screens, not LCD.
Click to expand...
Click to collapse
Yea high brightness.doesn't kill mine at all...and these phones can't over charge. HTC and if you use a cm based Rom, trickle charge from 90% to 100% and then discharge and charge from 95-100 until unplugged. It's why when you unplug it it drops to like 96% really fast.
sent from an under rated phone
The battery life on the inc two is amazing stock. I have had no problems with any unnecessary battery drain .Notrooted but still pluggingaway two days between each charge
Sent from my ADR6350 using XDA Premium App
HELP EVERYONE
MY HTC ONE V drains faster even in normal use.
I just use the phone for texting
Wifi OFF
Data OFF
GPS and Location OFF
Bluetooth OFF
from 77% after five hours it became 39%
and also is the HTC One V lag? is it normal? how to run the device so smooth?
THANK YOU IN ADVANCE EVERYONE FOR HELPING ME. GRATEFUL :")
Def not normal. My battery with everything on WiFi, sync etc. And playing music for 4 hours my battery is at 72 after 10 hours
Sent from my HTC One V using xda premium
You have an app that uses the cpu too much = it eats a lot of battery.
Yea true! Some app is sucking the juice off your battery! See if you have some background app running which is trying to connect to the Internet (Since you have both data n WIfi off). Usually these apps eats up a lot of CPU speed. Could explain the lag issue too
Also does you phone heat up?
Great battery life on this phone. Better than most I've tried. Watch what apps you have installed as well. They might be tapping the juice in the background.
Sent from my HTC One V using XDA
yep something is draining ur battery and eating lot of ram
wt free ram ua having?
and if u use swift key x thn think twice it uses more thn 3mb ram when u nt using 50+ whn ua using
soo think ovr it
dnt keep screen brightness to max
it will drain juice twice faster whn ua at home keep it low and when out 25% is enough to make u see the screen in bright daylight
Sent from my HTC One V using xda premium
paarthdesai said:
yep something is draining ur battery and eating lot of ram
wt free ram ua having?
and if u use swift key x thn think twice it uses more thn 3mb ram when u nt using 50+ whn ua using
soo think ovr it
dnt keep screen brightness to max
it will drain juice twice faster whn ua at home keep it low and when out 25% is enough to make u see the screen in bright daylight
Sent from my HTC One V using xda premium
Click to expand...
Click to collapse
Just keep it at auto-brightness...
Sent from my HTC One V using XDA
Yes I must point out that the battery life on this phone as I have observed is quite above average.
RaceAce said:
Yes I must point out that the battery life on this phone as I have observed is quite above average.
Click to expand...
Click to collapse
I definitely agree on that. At this day and age of smartphones and their battery lives, this phone is rather exceptional.
Use apps like Watchdog and Wheres is my droid power to check what is using more cpu/battery! And remove it or find a alternative
Sent from my HTC Desire using XDA
Its always better to install apps which are without ads (mostly freewares are like that only). Keep the brightness at optimum coz its the screen which uses most of the battery.
The more the softwares are running at a moment, the more the RAM is used and hence the battery runs out qiuckly.
Dont keep wi-fi or internet connectivity open always.
Or else u can install third party softwares like Juicedefender or Easy Battery Saver.
Oh and most importantly NO TASK KILLERS!
Sent from my HTC Desire using XDA
iamsonal said:
Its always better to install apps which are without ads (mostly freewares are like that only). Keep the brightness at optimum coz its the screen which uses most of the battery.
The more the softwares are running at a moment, the more the RAM is used and hence the battery runs out qiuckly.
Dont keep wi-fi or internet connectivity open always.
Or else u can install third party softwares like Juicedefender or Easy Battery Saver.
Click to expand...
Click to collapse
Or you can install the program AdFree, set the adress ip for ads to be ignored and you will have your phone ad free .
And those softwares "juicedefenders" are good on a short term but on the long run it causes problems.
Use it as stock without any programs that help you to have more battery or **** like this..
Check the battery usage through Settings > Power > Battery use.
No need to use a third party app for this (unless you've removed this by any means).
Sometimes software issues cause these problems on the phone (even on the stock ROM). Common culprits are "Phone is idle", "Inactive" and "Android system". If these are reporting battery use above ~10% (and you haven't actually had the phone inactive for most of the time), the problem should be resolved with a factory reset.
Otherwise, unless you've tampered with the bootloader this would be covered under the 24 month manufacturer's warranty (12 outside EU) and the device should be sent in for a battery swap / given back to retailer as DOA.
Also, the device isn't the fastest one. The processor is running at 1Ghz with 512Mb of RAM to go along with it. The solution is to load a kernel with overclocking capabilities (Titanium for example) and crank up the CPU to 1,5 or 1,7 GHz. I would assume all of them can run 1,5 GHz as I suspect the processors are actually underclocked to keep battery life long.
Obviously this would reduce your battery life, but having less than 24 hours of battery life on an unmodified One V is what I would call poor unless you are a heavy user.
I hope this helps.
mysdavey said:
Check the battery usage through Settings > Power > Battery use.
No need to use a third party app for this (unless you've removed this by any means).
Sometimes software issues cause these problems on the phone (even on the stock ROM). Common culprits are "Phone is idle", "Inactive" and "Android system". If these are reporting battery use above ~10% (and you haven't actually had the phone inactive for most of the time), the problem should be resolved with a factory reset.
Otherwise, unless you've tampered with the bootloader this would be covered under the 24 month manufacturer's warranty (12 outside EU) and the device should be sent in for a battery swap / given back to retailer as DOA.
Also, the device isn't the fastest one. The processor is running at 1Ghz with 512Mb of RAM to go along with it. The solution is to load a kernel with overclocking capabilities (Titanium for example) and crank up the CPU to 1,5 or 1,7 GHz. I would assume all of them can run 1,5 GHz as I suspect the processors are actually underclocked to keep battery life long.
Obviously this would reduce your battery life, but having less than 24 hours of battery life on an unmodified One V is what I would call poor unless you are a heavy user.
I hope this helps.
Click to expand...
Click to collapse
Actually, a good kernel can improve battery life even if you overclock your cpu. HTC's kernel doesn't come with all the tweaks available for volting and battery life. So if a good dev makes a good kernel, the battery should be the same as running on stock, but with faster performances. Adi_Pat has done a great job with his kernel. I was running it for 2 days until I needed to get a replacement for my phone and now I am waiting to get a new one so I can run it again. I even overclock it at 1.9 ghz and run it for 1 full day and after almost 8h of wifi on, the battery still had 50%. So if you don't have an app that kills your juice, you have definitely a poor battery built in.
does it lag
it was going to buy this phone but saw this vid /watch?v=JptIYZl8qmE that said it was very lag. do you think i should buy this or the sony arc s. plz help
I had some similar issues until I did the following:
Run the battery completely dead until the phone shuts itself off, then put it on the charger with the phone off. Charge it until it is at 100%. Take it off the charger and turn it on. Turn it off again, put it back on the charger until the LED is green, then turn it on again. This helps Android to calibrate the battery.
Install Quick System Info and see what apps are running and how much resources they are using. Also, close all apps, then go into Settings>Apps>Running and see what is running. Look for any apps that shouldn't be running and uninstall them. You have something running in the background and need to get rid of it, this will help you do that.
Uninstall Swiftkey X or Thumbs Keyboard or any other keyboard apps you put on there. Uninstall any weather/clock widgets like HD Widgets or Animated Weather. Use the stock keyboard and stock weather widget (they both work pretty well).
After doing all of this I consistently get home after 10 hours from work with about 60% after moderate usage. I also have almost no lag unless I am playing a more graphically intensive game. Couldn't be happier.