Related
Has anyone noticed that after around 3 weeks of using the HD2 the battery life magicly gets bareable?
After 24 odd hours the batterly life is at 76% were as before it would be on its last legs.
Its made me slightly happier with it now, not having to charge it every second i got.
I recall someone explained before that it's simply becoz one tends to fiddle with the device more when it's newly acquired. Now your battery can last longer probably because you are playing with it less each day.
Or did you do any magic power-saving tweak that you can tell us more about?
djchubbs said:
Has anyone noticed that after around 3 weeks of using the HD2 the battery life magicly gets bareable?
After 24 odd hours the batterly life is at 76% were as before it would be on its last legs.
Its made me slightly happier with it now, not having to charge it every second i got.
Click to expand...
Click to collapse
Lion and LiPo batteries achieve their max capacity after a period of use similar to the time you have reported.
To keep them there charge as often and for as long as you can.
Exact, it's not your battery lasting longer, it's just you not spending your day playing with the thing anymore.
It's always the same thing, the more a device can do, the more you do with it. On my first 1h train journeys after getting my HD2, I was able to kill 50% battery in 1hr. My first thought was "wow, with my Kaiser I would only use like 15%!!"
But then I took a second thought. I used 50%, but I was browsing the web, in bad reception areas, while listening to music the whole time. With my Kaiser, I'd put music on, check 3 webpages, then put it on the tray with just MSN connected and just pick it up to read/type a message once in a while.
On a next trip, I "forced myself" to do the same with the HD2. Just checked the news for 5 mins, then only listened to music and picked up msn once in a while, plus an unexpected 10min phone call. Guess what? I've only used 20% battery during the trip this time
The "problem" is that browsing with the Kaiser was just painful, so I'd just check the news and put it away. On the HD2 it's so comfortable I forget it and just spend my whole trip browsing heavy pages, which obviously kills battery in no time...
It may be also that battery charge controller incorretly displays battery charge.
It may be that it shows you 75% after 2 days and then by 1 hour your battery will fall down to 1%.
Just starting a thread for battery life experience as people use the phone. Mine is pretty freakin' great right now, but I'll post some initial results after I get home later tonight. I finished charging to 100% almost 2 hours ago, and with just a bit of usage (maybe 10 minutes total screen on time) I still am at 100%. Though, we know that it sometimes takes a long time to drop from 100% to 90%.
What are other people's experiences? Please post display on time in battery stats, as that gives a good feel for how much you're actually using the phone.
Unplugged it at 6:30am with a full charge.
Took it to work, I put it in airplane mode when I'm in the building because I don't get a signal and don't want the radio searching for a signal and wasting power. GPS/Bluetooth/Wifi are all turned off. I turn the radio back on when I'm out of the building, and I'd estimate it's been on 2 hours since it was charged.
Have watched the latest episode of Family Guy and started on the latest episode of Dexter using Rock Player.
I estimate the screen has been on for about 4 hours. I can only estimate because I had to plug the phone in to transfer a file a couple hours ago which reset the stats.
I've downloaded and installed about 20-30 apps today over 3G networks.
At the current time of 3:15pm (8 hours 45 minutes since full charge), I have 30% of the battery left.
I think you're supposed to do a full charge and full discharge so the phone can "calibrate" the battery meter, which I have not done yet, but so far I'm very pleased. Puts my 2 yr old G1's battery life to shame...
Yeah it sounds decent. A bit better than my Nexus One was.
I would say it is on par with the Nexus One. Should get you through the day but you will be plugging it in at night. It is comparable to most android phones.
Sent from my T-Mobile G2 using XDA App
Without explaining a bunch of boring details, it's definitely better than my N1 so far. Charged it up right after getting it from the UPS guy today for a couple of hours while I took a nap.
We'll just have to wait and see after a few days of use, charges and discharges. Looking great so far, though!
Played around with it at the store today, came in at 3 p.m after school. The demo unit was already at 45% when I got it, surfed the web for about half an hour, downloaded an app, watched YouTube for about 5 minutes and the phone died at about 4:30.
Not really impressed, but its an Android phone. Hopefully it can be better, the good thing is that the web browser is a lot faster than my iPhone 4. That's what keeping me on returning the iPhone, and it starts up a lot faster as well. Took about 20 seconds to boot up after the phone died on me, and the rep charged it.
Definitely will be needing to charge it every night.
3 hr bike ride with music playing used about %50 of the bat. So its way better then my G1 but not as good as my Iphone 2g.
I'm getting much better battery life then I was getting on the G1....love this phone
Sent from my T-Mobile G2 using XDA App
How about someone download Battery Left widget and tell us what it says.
Will vary by user but it will be more accurate with remaining battery life.
So far the battery life on mine is terrible compared to my nexus one, and that was terrible as well.
I woke up 10am, phone on the charger, took it off, around 2pm made two phone calls. Went to work at 5pm, phone's battery was at 23% around 7pm. My nexus one around that point would be at ~50%. So far I'm not impressed with this phone, more work could have went into it.
I loaded a few webpages... did a video chat with someone on Fring for about a minute (lol), downloaded a few apps, had a few phone calls... one lasting about 10 minutes... and after being off the charger for 5 and a half hours.. i'm at 44 percent power... this is my first android device so I'm not sure if that's good or bad
Have you all that are reporting poor battery life done the full-charge/full-discharge thing to "calibrate" the battery meter. I'm not sure that it really matters, but I'm assuming it does since battery info is one of the things you can wipe in the recovery roms.
I'm still extremely pleased with my battery life.
I got the phone yesterday and played with it right out of the box till it was at 5% battery... i plugged it in lastnight and let it fully charge and i unplugged it at 6:15am this mornining... i used the gps to get to work to see how it was... i have watched videos on youtube, gone on the internet, checked and sent emails and texts, downloaded some apps... and played around with it today... i had it plugged into the computer thru usb for approx 5 min tops to set up some media files... and as of now at 3:33pm my battery is at 50%
Opening mine at 930/10pm, heavily used it to burn it to 0% and did that by 12/1230am. Charged it to 100% by 330am. Played with it a bit then went to bed, left it unplugged. Woke up today and burned it to 0% by 330pm. It's charging right now and we'll see how it goes throughout tonight. It will get a bit of pocket time so I'll get a real feel for the battery life.
Took mine off the charger at 7am throught the day had 20 incoming/outgoing calls all lasted at least 2or 3 mins each, downloaded a couple of apps, checked facebook and twitter a few times. showed it off to some friends and now it is almost 5:00 and still have 60% battery, so I am impressed especially since I had a G1 before this
Jorsher said:
Have you all that are reporting poor battery life done the full-charge/full-discharge thing to "calibrate" the battery meter. I'm not sure that it really matters, but I'm assuming it does since battery info is one of the things you can wipe in the recovery roms.
I'm still extremely pleased with my battery life.
Click to expand...
Click to collapse
They aren't changing them long enough. Lithium ion batteries don't have to be trained like the older style ones. Other other culprit could be the batterystats.bin but you can't access or delete that without root. Jut discharge the battery till it powers off and charge for 4-6 hrs.
charged mine last night while tethered to my laptop browsing - took it off about midnight
this morning the alarm sound (pre-alarm 5 minutes, full alarm for 10 mins and never woke me btw), spent about 2 hours+ talking, browsed the web for maybe 15 minutes, downloaded a few apps from the market and ran a few quadrant benchmark test - it's now almost 6:00PM and it's at 40% -
i'm happy with that - and from experience with my MT3G and the vibrant, battery life should improve with some cycling or useage
sino8r said:
Jut discharge the battery till it powers off and charge for 4-6 hrs.
Click to expand...
Click to collapse
leave it on the charger for 4-6 hours after its full or just to charge it from empty to full?
I'm very glad to hear about the excellent battery life. A friend of mine has even reported his phone being on for a full day and still having battery life left.
People make sure that you charge up your battery fully before turning the phone on. It's better to be safe than sorry. I know people say it does not matter but otherwise the battery won't be accurate if you just turn it on out of the box.
10 hours and some change later after normal phone usage and I had to charge it... I'm impressed to say the least
Question for those who have the Venue Pro: For the past two day that you all had the phone how is the battery holding up?
I'd like to know that too, battery life is the reason why I don't want a HD7.
I took mine off the charger about 7am yesterday, went to work, used the phone to browse the web on the train, make a few calls, send some messages and mail & used the media player. Got home around 7PM with about 20%, which was about what my brother's Venue Pro had as well.
His phone died around 8:30, I had mine on the charger by 9PM, so I would say the battery lasts anywhere from 12-15 hours with moderate usage. This was on the first full charge though, so that may improve.
Arcarsenal said:
I took mine off the charger about 7am yesterday, went to work, used the phone to browse the web on the train, make a few calls, send some messages and mail & used the media player. Got home around 7PM with about 20%, which was about what my brother's Venue Pro had as well.
His phone died around 8:30, I had mine on the charger by 9PM, so I would say the battery lasts anywhere from 12-15 hours with moderate usage. This was on the first full charge though, so that may improve.
Click to expand...
Click to collapse
Thanks, that's n ot to bad.
Feels like it's similar to my HD2 in usage. Wish the battery lasted a little longer but then again i'm using the thing more then usual since it's new
Those of you with the relaunched DVP, could you comment on battery life please? More to my query, can you use it as a Zune all day and still be able to have a full day of usage?
would like to know this as well
battery is decent, I had wifi running while I was planted in the phone for a straight 2 hours and it lost about 1/4 of the battery. I have yet to go a full day straight without putting it back on the charger about mid day. So maybe tomorrow I will give a review on the battery
Today it's been going for about 15 hours of really light usage and it's at half power.
Yesterday I used it web browsing for an hour or two and used it about as much as I ever will and it got about 18hours.
First day with over 300MB of downloading, syncing and first charge resulted in about a 6 hour battery life.
I would like to test straight up MP3 playback time but ran into the problem of volume. It rings through the headphones if you have headphones plugged in so I wouldn't be able to hear my phone ring. Not really an option. And I'm not keen on tinny mini speakers playing music for a couple of hours.
Yesterday woke up to its first full charge.. used it to surf and text and made about 30 min call. Texted off and on all day, even played with a few apps and had wifi on for about 3 hours. It died in about 10-12 hours.
So it should last a full work day, and if your at work you could have it on charge.
On standby today (havent played with) and about 30 min of talk time. Its showing almost no charge lost in 4 hours..
Charles
I don't know if its just me but on my first full charge I only got 4 hours of usage. On the second charge it jumped to 7 hours. I'm pretty sure its because I was constantly using it, but it was still a bit of a surprise to see my battery life drop so quick, especially after hearing reports of 10-15 hours of moderate to heavy use.
yourlife said:
I don't know if its just me but on my first full charge I only got 4 hours of usage. On the second charge it jumped to 7 hours. I'm pretty sure its because I was constantly using it, but it was still a bit of a surprise to see my battery life drop so quick, especially after hearing reports of 10-15 hours of moderate to heavy use.
Click to expand...
Click to collapse
Same here, I have been so disappointed by battery life.
on idle
2 and a half days
moderate use
1 day and about 5 hours (no playing just sms very few calls)
heavy use
18 hours
my phone just died and this is after 1 and a half of use! this thing is incredible compare to my G1!
I don't even have to lower the brightness and turn off all the features unlike my G1, which really hindered my experience with that phone. It's the same story with my friend's new MyTouch 4G. His die after 7-8hrs of use and he has to turn off features and turn down the brightness.
This phone on the other hand, I used it quite often in those 1day and half. texting, phone calls, internet, playing games, watched an episode of family on Netflix app, took many pictures and played with camera settings and many other things, yet it lasted that long! WOW
domineus said:
on idle
2 and a half days
moderate use
1 day and about 5 hours (no playing just sms very few calls)
heavy use
18 hours
Click to expand...
Click to collapse
this is my experience also
Does anyone agree that the battery life for Samsung Focus is really short?
I use my phone to check emails, browse websites and listen to music during lunch, dinner and on the road. The total hands on time per day is roughly 2hrs. But if I only charge it overnight, not anytime else, it only last until right after dinner.
It unacceptably short comparing to my ex-phone, HTC Touch Pro2.
Anyone experiencing the same thing?
Who should take care of this issue? Samsung or Microsoft?
My phone on moderate use will last me 1.5-2 days but I usually charge it at the end of the night regardless. In the first couple of days I did notice that the battery would drain pretty fast but seemed to get better after that.
Mine will typically go from 7:30 a.m. to 9:00 p.m. or so while still having the battery indicator having something inside. That's with it being used all day as an mp3 player, triaging email, web surfing, and Twitter.
When you get a new phone the battery has to go through a couple of cycles charging for the phone to calibrate. Also, keep in mind things that drain battery: light theme, streaming, basically downloading massive amounts of data. Make you sure you discharge your battery to about 10% and fully charge your battery a couple of times. Try not to go below 10% not good for battery. Make sure you are using wall adapter ac to charge. Charging from a pc is very slow and generally doesn't fully charge unless you leave it plugged for a LONG time.
Light use I'd say 1.5 days
Moderate 1 full day
Heavy use 7-8 hours
With light use i get about 4 to 5 days, heavy use i get about a day or two. Check to see if you have location services (GPS) running, wifi, etc as the more parasitic things you can turn off the better the battery life of course.
Mine lasts all day for me. A long 16+ hour day with moderate usage leaves me at about 30-35% battery. I keep Wi-Fi turned off and bluetooth always on. Not bad for a smart phone. I've seen phones far worse than this (Sprint Epic anyone?).
My battery last abour 8 - 9 hours, and I'm running for a outlet by then. But I'm a heavy user. Bt headphones with the music playing, twitter constantly, facebook, text, email, IE..., pretty much all of those 8 - 9 hours.
I have just about everything that I can find turned on, and have been using my new toy as much as possible. With that, I'm having to charge about twice a day, which is roughly where I was at with my Tilt2. Your battery drainage really sounds like it's normal, and likely related entirely to how much crap you have turned on and running in the background. The biggest drainer of the battery in any phone is gonna be the radio, so if you want to improve battery life, turn off stuff that connects to the network and set your email/weather/tweets/facebook to refresh much less often. Select "as items arrive" for your hotmail and Gmail so that they push instead of pull. Check your basics first before trying to find a customer service rep to chew out.
I'm happy with my battery life. I just charge it every night like I have every phone Ive owned. I use my phones as my morning alarm clock. I have all location services active, and i activate WiFi when usable. At work I leave it plugged in to stream music and podcast.
Coming from Android and Droid Incredible, the Focus is awesome on battery. I have no problem lasting the full day. I charge my phone each night overnight.
It's a mixed bag for me. the first few days when I was just getting to know it, making calls and just goofing around with basic functionality the battery was lasting very long and things were looking great.
Once I started using the data and other apps, the battery drains very fast IMO. I mean play a 2D game for half an hour and I won’t make it through the day.
Right now I’m not digging it that if I’m out and about I feel like I need to avoid using the phone like I would like to.
I’m really looking forward to being able to do things like being able to easily disable 3g.
I'm most certainly happy with my battery life. After using a nexus one, xperia x10 and the galaxy s I have nothing to complain about with the focus....just lovin wp7 at the moment.
willp2 said:
It's a mixed bag for me. the first few days when I was just getting to know it, making calls and just goofing around with basic functionality the battery was lasting very long and things were looking great.
Once I started using the data and other apps, the battery drains very fast IMO. I mean play a 2D game for half an hour and I won’t make it through the day.
Right now I’m not digging it that if I’m out and about I feel like I need to avoid using the phone like I would like to.
I’m really looking forward to being able to do things like being able to easily disable 3g.
Click to expand...
Click to collapse
Games are always battery killers, especially on AMOLED screens that tend to get the best battery life with black interfaces, since they actually don't light the pixels up if they're supposed to be black.
Coming from an iPhone 4 i can't complain. Battery on that was amazing. The focus doesn't Last at long but I can't say im disappointed. It's actually better than expected.
It is normal for the battery to die after browsing the internet for about 3-4 hours?? Not happy about that.
Battery life
It depends on how the phone has been used. Screen is the biggest power drain, than the radio (3G data, WiFI, location services).
With all on and moderate usage (gaming for 30 mins, a few calls, and playing with the phone for an hour) I get about 12 -13 hours.
With all off and a few TXT and calls (about 10 -12) I get about 76 hours.
Not bad I guess.
This phone is better than iPhone 3GS.
jimenez16 said:
My phone on moderate use will last me 1.5-2 days but I usually charge it at the end of the night regardless. In the first couple of days I did notice that the battery would drain pretty fast but seemed to get better after that.
Click to expand...
Click to collapse
I agree, I was loosing full battery within half a day with my normal usage for the first 4-6 days... Then after a while, now I can go for 2 days without charging under normal usage...
The battery life on this thing rocks!
Zhariak said:
I agree, I was loosing full battery within half a day with my normal usage for the first 4-6 days... Then after a while, now I can go for 2 days without charging under normal usage...
The battery life on this thing rocks!
Click to expand...
Click to collapse
I use my Focus heavily for reading texts off of PDFs and browse the internet using WiFi most of the day, and in my free times I listen to music so I use it quite heavily. Yesterday I ran it through my routine day and got about 14-15 hours of full operational time from 100% charge as I took off from my dormitory to university to 0% half-way back to my dorm. My only problem is the length of time it has to be plugged in to charge. Its pretty slow, but that may be because of the large battery capacity to begin with.
the battery life is just OK, hopefully like with other cellphone updates maybe battery life will be improved at least somewhat, we can hope....
I have two of these things. Mine I use a lot and while the battery lasts less than my old 3GS, I am getting used to it and end up keeping hooked up to a charger pretty often.
My wife's on the other hand is baffling. She hardly uses the thing, maybe a call every day or two. For a while there we were getting about 3 days from a charge and then it would still have around 30%-50% left.
Now in the last few days, it drains the battery completely overnight. And I mean completely its totally shut down and dead. That’s with wifi and Bluetooth off and virtually no usage. Not sure what is happening, but this really sucks as now she can’t count on the thing to just be a phone without needing to be babied.
Hey guys im just wondering if my battery is funky... i just got this g2 yesterday and am running off a full charge since 6:43 AM its 9:51 AM now and its at 91% i really havnt used it to terribly much since im in school but it seems that since it dropped from 100-99% at 8:34 AM it seems to be draining quite fast now even when its sleeping... i havnt messed with the settings to much so is there something bloatware or software wise thats making it run out fast or by the times given am i just tripping and my battery life is fine, i just feel like the 3000mAH should be doing alittle better than this..
THANKS in advance!
I can tell you with my Verizon G2 I get awesome battery life other day I was at 16 hours 8am-12am with 2hrs screen on time 35 mins playing games and 2hs 25min of streaming music to a bluetooth speaker. I was at 52% after all that. Don't know if that helps but that is what it is for me. Since got phone it has never dipped below 50% in up to a 18hr day for me.
greekmanx said:
I can tell you with my Verizon G2 I get awesome battery life other day I was at 16 hours 8am-12am with 2hrs screen on time 35 mins playing games and 2hs 25min of streaming music to a bluetooth speaker. I was at 52% after all that. Don't know if that helps but that is what it is for me. Since got phone it has never dipped below 50% in up to a 18hr day for me.
Click to expand...
Click to collapse
are you a heavy user?
Tmobile variant
I have the Tmobile G2. I'm a bit concerned about my LG G2 battery. Can others suggest a test that we can both follow so that I can compare my battery life to yours. The phone seems to be alright when idling for 8 hours as I slept it only lost 3%. When it comes to charging it went from 0% to 52% in about an hour, and was at 90% on its way to the 2 hour mark. But when using it just to browse and stuff it seems like its dying a bit fast.
So let me know things like screen brightness, apps to run and what not so we can compare how long our batteries last. That way I can return it before my 14 days are up. Thanks for your help in advance.
DiPoet said:
I have the Tmobile G2. I'm a bit concerned about my LG G2 battery. Can others suggest a test that we can both follow so that I can compare my battery life to yours. The phone seems to be alright when idling for 8 hours as I slept it only lost 3%. When it comes to charging it went from 0% to 52% in about an hour, and was at 90% on its way to the 2 hour mark. But when using it just to browse and stuff it seems like its dying a bit fast.
So let me know things like screen brightness, apps to run and what not so we can compare how long our batteries last. That way I can return it before my 14 days are up. Thanks for your help in advance.
Click to expand...
Click to collapse
i constantly close all my apps and keep my brightness high enough to see but as low as i can to see... right now my batter usage is at 4hrs and 3 mins and im at 85% currently its saying i should still have 22hrs and 47mins but that seems impossible xD
"I have a theory"
So im going to wing this out for the rest of today and let it run down without charging it agian... if it lasts me all day ill post because im having a theory that the way the battery percentages on this phone are different cause of the new technology in the battery cause it seems that certain percantages last FOREVER then others go through rather quickly i think im just used to how my old phones percentages escilated ill repost when it dies or when i go to sleep
I would say I am medium to heavy user I stream music via Bluetooth everyday talk for 30 plus minutes on Bluetooth a day and play music in car hour a day and play games hour plus a day and I leave brightness on auto never on Wi-Fi lte only and I close all apps.
I charged my phone to about 94% went to bed with it at 89%. Woke up with at 86%, 8 hours later. My brightness varied through out the day from 23-60%, currently at 40%. Mainly did browsing and fb for a bit today. For about an hour while browsing the phone was on airplane mode with Wifi on. As of now at 54%, battery usage 16h 2mins, expected time to use +18h 54mins, last 3 hours in use, used 9%.
My battery use details:
Android System 25%
Screen 22%
Android OS 14%
Chrome 8%
Cell standby & idle 6%
I run near max manual brightness, a live wallpaper, GPS, WiFi on all the time, automatically checking email every 10 minutes, lots of phone calls and texts, and I still have 79%. Off charger since before 7a.m. Software says I have 36 hours left. Best battery life I have ever had on any phone, any Rom.
rfarrah said:
I run near max manual brightness, a live wallpaper, GPS, WiFi on all the time, automatically checking email every 10 minutes, lots of phone calls and texts, and I still have 79%. Off charger since before 7a.m. Software says I have 36 hours left. Best battery life I have ever had on any phone, any Rom.
Click to expand...
Click to collapse
That's crazy my phone has been on for 19h 29mins without all that auto sync and other stuff you have running and I'm at 35% with an expected
6h 29mins left. You think something is up with my phone ?
DiPoet said:
That's crazy my phone has been on for 19h 29mins without all that auto sync and other stuff you have running and I'm at 35% with an expected
6h 29mins left. You think something is up with my phone ?
Click to expand...
Click to collapse
Well, that's still not too bad. Are you a gamer? How's your signal most of the time?
Also, I'm on VZW, in case that makes a difference.
rfarrah said:
Well, that's still not too bad. Are you a gamer? How's your signal most of the time?
Also, I'm on VZW, in case that makes a difference.
Click to expand...
Click to collapse
Not a gamer, tmobile usually 3-5 Bars 4g lte. I dont get how it just dies so much off of browsing alot but so efficient when sleeping. My phone is at 11% now after alot of browsing and talking on the phone for an hour. As I type this I've been on a phone call and googling info about battery tests for 45 mins.
this is complete BS!
rfarrah said:
Well, that's still not too bad. Are you a gamer? How's your signal most of the time?
Also, I'm on VZW, in case that makes a difference.
Click to expand...
Click to collapse
i have a verizon version and compared it to my moms 4s battery running iOS7
heres the deal her battery usage is like 3hrs 7mins mine is 6hrs 23mins mines at 2% hers is at 51% we both unplugged the same time so this means im getting the same battery life as a 4s running iOS 7 plus she keeps her data and everything on i turn mine off when not in use... so did i get a defective battery? cause if my battery is the same as a 4s running iOS7 im not gonna be a happy person i know i should get at least 15-16+hrs of battery use and still have like 20-30% left! UGHH and my phone reboots into the verizon logo alot when i unlock it i think i got a horribly manufactured g2... just my luck what do you guys think?
It feels like i have the original droid razr battery life agian Dx my razr m lasted longer!
Unplugged my phone at 98%, went to bed woke up with it at 95%. Then had the screen on for an hour straight just messaging ppl on fb. Now I'm at 87%, that's not normal right? Screen is on auto brightness nothing else going on.
Can anyone confim that this is normal? i have an LG g2 with 3000mah and i loose 1% of battery every MINUTE while playing games, so 10 minutes of modern combat 4 or plats vs zombies is around 10 %, 60-70% brightness, sound half way or headphones. Some people are speaking about "5h of screen time easily" while i get 2-3h ...
My battery seems fine but I HIGHLY RECOMMEND not using the standard "fast charge" method to charge it over night. At night I recommend either a Wireless Qi Charge or a "Slow Charge" from a standard USB port or a smaller charger like one from an iPhone (the little cubes with a USB port).
There is a HUGE difference on battery life throughout the day between a Normal Fast Charge and a USB Slow Charge.
I only use Fast Charge when I'm out and about throughout the day but I haven't needed to do that with the G2. On my Galaxy Nexus I could fast charge it to 80% and it would be dead in 3 hours just idling in my pocket.