Battery getting old ? - HD2 Android Q&A, Help & Troubleshooting and Genera

My battery is getting on with age, about 12 months old now.
My Rom is good, Android and very good 250 to 300 mah on and 5 mah sleep drains .
Problem is only 1 hour of screen on and a couple of 10 minute calls equals 50% or more of my battery gone. I'm on the charger in my office by lunchtime.
I have done battery calibration twice in two weeks.
Brightness is manually set to 75% all day.
WiFi and Bluetooth off
Drain in sleep is 5mah and only hits 80mah spikes once or twice every few minutes for the sync stuff.
I need a new battery don't I ?
Sent from my HTC HD2 using Tapatalk

Visentinel said:
My battery is getting on with age, about 12 months old now.
My Rom is good, Android and very good 250 to 300 mah on and 5 mah sleep drains .
Problem is only 1 hour of screen on and a couple of 10 minute calls equals 50% or more of my battery gone. I'm on the charger in my office by lunchtime.
I have done battery calibration twice in two weeks.
Brightness is manually set to 75% all day.
WiFi and Bluetooth off
Drain in sleep is 5mah and only hits 80mah spikes once or twice every few minutes for the sync stuff.
I need a new battery don't I ?
Sent from my HTC HD2 using Tapatalk
Click to expand...
Click to collapse
i bought 1 off ebay around 3 months ago for £10.95,a 2400mah and not the extra thick 1 that would break your fingers when u pick the phone up lol,its the same size as the origional,WORKS GREAT

Ty5982 said:
i bought 1 off ebay around 3 months ago for £10.95,a 2400mah and not the extra thick 1 that would break your fingers when u pick the phone up lol,its the same size as the origional,WORKS GREAT
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Click to collapse
Really! And does Android properly recognize it as extended battery ?(provided the kernel supports extended batteries)
Sent from my HTC HD2 using Tapatalk

as far as im aware YES IT DOES,i check my battery info and it says 2400 as to 1300
Sent from my Desire HD using xda premium

This looks interesting: how many hours your phone will last with that 2300mah battery?

it varies on use really but i no its a 50% roughly better battery when i leave my phone on over night,nowhere near as much battery drain
Sent from my runnymede xl using xda premium

Someone compiled for me a tytung r14 kernel with the battery id 4 set to 2400 mah and bingo I can use the cheap extended battery I got. Woohoo.
Sent from my Nexus One using Tapatalk

Related

Extended battery pack?

Yeah so I burn through my battery in 6 hours... people say that it can last 24 with heavy usage. But that's total BS. So is there an extended battery pack that I could get?
Sent from my MB860 using XDA App
I'm interested as well, I did buy a 2200mah battery on ebay but considering its coming from china i got a good 2-3 weeks before i see it.
I was looking at that and wondered if was true and not total bs. PM me when u get it plz
Sent from my MB860 using XDA App
If you burn through your battery in 6 hours youre doing something wrong. Try.draining your battery all the way and then charge it over night
Sent from my MB860 using XDA App
SwabZ said:
If you burn through your battery in 6 hours youre doing something wrong. Try.draining your battery all the way and then charge it over night
Sent from my MB860 using XDA App
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Click to collapse
My notifications are ALL off, i run a few chat apps for maybe 30 minutes tops, but all i really do is text. My total USAGE comes out to about 4 hours and 30 minutes with Nighttime Powersaver. And my screen time is usually about 14-16 hours depending and i'm not rooted or anything.
Im texting and using data constantly...
Sent from my MB860 using XDA App
Also I did the battery calibration so I shouldn't have to drain the battery and fully charge it....
Sent from my MB860 using XDA App
You should consider rooting it and running GreyBlur. I was running through the battery like crazy, actually got AT&T to swap for another Atrix and still had the same problems. GreyBlur really improved my battery life and I'm able to get through a day of medium usage and still have about ~40% when I plug it in at night.
So if im going through the battery fast that means it could be a problem with the battery?
Sent from my MB860 using XDA App
Had same problem rooted went to greyblur I'm at 20hrs and at 30% right now since my last unplug been using it hardcore for the last 4 hrs
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there is a 5000 milli amp battery for the atrix. i get 10 hours on 1930 so by simple math, this should get
24.8 hours
http://www.mugen-power-batteries.co...-for-motorola-atrix-4g-with-battery-door.html
I have two numbers on my battery uptime 23.5 hrs and since unplugged 13.5 hrs! What's the difference don't no but def best battery in a phone I've ever owned under heavy use considering all the stuff you can do with this thing amazing
Sent from my MB860 using XDA App
I have a celltronix universal portable power pack. (4000mAh)
Has two USB ports to charge stuff, comes with multi tips to charge stuff, but I just use the usb cord that came with my atrix. Outputs 5v, charges in about 4 hours.
I don't use it much on my atrix, but I have before, just plug it into the usb port and recharges my phone, can get almost 2 full recharges out of it for the atrix.
I like it cause I can also use it to charge other items also! Used it for my iphone 3gs before I got the atrix.
You can charge power pack from wall, car, or comp usb.(mini-usb plugin to charge it.
Just google "celltronix universal portable power pack" it will pop up on a number of sites. ( I bought mine in a truck stop)
You burn through it because you have a defective product.
Sent from my MB860 using XDA App
Yea, burning through it in 6 hours means you definitely have a bad battery. GreyBlur destroyed my battery life though, not exactly sure why it increased some peoples' but decreased others.
I had greyblur loaded once then went into recovery wiped everything then installed again first time battery barely made it to 4-5 pm when I went to for at 8 now 13+ hrs unplugged at 9am made it till 12:30am id say that's awesome. U probably got bad battery get couple new ones from what I hear they r cheap. Every phone is different t as far as battery and speed like my battery is awesome but when I run the graphic test I get 2300-2500 scores when I see others getting 2600-2800+
Sent from my MB860 using XDA App
Ok. So i'll go to the AT&T Store and what should I say so that theyll give me a new one? They are hardass's and I need to convince them, any help on that part?
Don't lie. Tell them you think the battery life has been unsatisfactory. And with a battery that big you should be able to get better than 6 hours.
I burn through my battery pretty quick too though. Today it was dead around 6 hours (11-5) charged and now near death again. But I don't have a screen timeout, notifications on, downloading podcasts on listen(listening to them on speaker), everything on 3G. I don't care what phone you have, that's killing the battery. Its hard to make a battery last on a lazy Sunday.
Sent from my MB860 using XDA App
I get 14 hours with constant usage... Facebook and twitter sync 1 hour gmail sync 30 minutes. Brightness around 30 percent no auto... Wifi scan 8 minutes. De bloat no freeze. No setcpu profiles... Autokiller set to optimum. I get around 28 hours on one charge with light usage and obviously lots of screen off time... Lol gotta sleep sometime.
Sent from my Motorola Olympus
Make sure you GPS is off when you do not need it. It uses up alot of battery when on. I left it on once for two hours and killed 20% battery.
Sent from my MB860 using XDA App

Battery Rubbish?

hey there
basically, last night i:
1)wiped battery stats
2)discharged till phone shuts off
3)turned phone on again so it turns off again
4)went to sleep with it charging
5)woke up 9 hours later, on 100%
so if its fully charged, battery ETA is only giving it 7 hours and 44 minutes estimated time, WITHOUT WIFI, GPS OR MOBILE DATA, AND 25% BRIGHTNESS USING 'BRIGHTNESS PROFILES' APP. isnt this like.... rubbish? this is my setup
stock battery
cyanogenmod 7.0.3 w/ Eugene's Smartass overclock kernel V9
*******Setcpu profiles: default 245/1228 smartass
Screen Off 192/368 conservative (100 priority)
Temp >38.5C 245/806 ondemand (priority 80)
Charging 368/1459 ondemand (priority 78)
battery <10% 245/368 ondemand (priority 71)
battery 15% 245/768 ondemand (priority 60)*********
ADW launcher w/honeycomb theme
-no widgets!-
i dont want to buy one of those bulky batteries, as it wont fit in my school blazer. the question is, how do i extend my battery?
Thanks
Sounds like a duff battery. I get about 20 hours with everything on on stock rom.
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oh okay thanks, where could i buy a decent battery, adding no bulk but not too expensive?
I'm wondering the same thing... the Desire Z only comes with a 1300mAh battery... My previous phone had a more powerfull battery (2100mAh) and that was an older model WM6 smartphone (which was rubbish on power savings) and it would outlast the desire Z... Even after two years of extensive use, the old phone's battery is better then this phones brand new battery
I've been unable to find any official HTC batteries for the Desire Z which pack more juice...
At the OP. What is your signal strength like? Mine is rubbish at work as I work in a converted barn and that makes a big difference to the battery life.
Sent from my HTC Vision using XDA App
at home i ALWAYS have 3/4 bars out of 4
btw i am also using JuiceDefender, if that would make a difference :L...
since the OP, ive been on facebook for about 30-40 mins, already 82% battery.....
Have a look through the accessories section. Lots of threads about replacement batteries.
Sent from my 'SilverBullet' HTCDesireZ running CM7
I am in the process of 'breaking in' a new 1800 MuganPower battery. Fits perfectly with no mods needed.
It should take a few more charges etc to settle down, so things should theoretically improve.
I pulled the plug off charge 6.5 hours ago.
I have it set to use wifi when at home, and 3g for the phone connection (I have a 3G femtocell at home).
When I leave my home area, it switches off 3g and wifi and drops to 2g.
I have made a couple of 2 minute calls, checked my emails and twitter, and was out of the house for say 1.5 hours earlier.
I have had a couple of texts to which i replied.
I am on 95% charge now, and pretty pleased with that.
I've got the same mugen battery, and get through a full day easily no matter what I do. Screen full bright, wifi always on, some internet, games, gps.... etc. Only 7 hours of battery to me sounds terrible.
since my last post, i havent touched the phone at all, and its got 66% charge -__- i seriously need a better battery, may buy the mugen, would you say they are worth it?
xT4Z1N4TRx said:
since my last post, i havent touched the phone at all, and its got 66% charge -__- i seriously need a better battery, may buy the mugen, would you say they are worth it?
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Have you made sure there are no apps or services that are using to much?
Sent from my 'SilverBullet' HTCDesireZ running CM7
Are you using the Google News and Weather widget? I still don't know why, but it was murdering my battery. Soon as I removed the widget, battery life shot back up.
Sent from my HTC Vision using XDA Premium App
nope, no widgets except the built in analogue clock.
the battery usage is used by mobile standby, wifi, display etc. no apps....
xT4Z1N4TRx said:
nope, no widgets except the built in analogue clock.
the battery usage is used by mobile standby, wifi, display etc. no apps....
Click to expand...
Click to collapse
What percentage per section(standby, display) is being used?
Sent from my 'SilverBullet' HTCDesireZ running CM7
mobile standby 33%
wifi 28%
phone idle 28%
display 5%
im surprised its been 10h 15m and im still on 58%
the battery seems okay when not touching the phone, as i have only checked facebook for 2 minutes, and sent around 10 texts (been playing football)
looks like imma turn off wifi when not using it from now!
When I first got my Desire Z when it first came out I was pretty disappointed in the battery life. I tried programs like juice defender and minimized every possible battery sucking option I could find. I could maybe get 12 hours of use out of it so I bought a 1800mAh MuganPower battery which gave me maybe 15 hours instead. Pretty poor I thought but what more could I do?
A couple of months ago I finally did a factory reset after encountering a lot of frustrating little bugs, some of which had been around since the phone was new. Since then not only has my phone worked a lot better and faster, but battery life is MUCH improved. My phone now consistently lasts 24 - 30 hours with the same usage or more than I was using it before. So obviously buggy software can make a huge impact on battery life and it's not something you are going to be able to easily discern as to what program(s) are causing the problem.
Hmmm im not sure then..
Sent from my HTC Vision using XDA App
Okay, played a bit of speedx 3D, heavy texting and facebook/gochat, still on 31%. Battery seems ok, still going to invest in a better one though, as using the phone for games or internet heavily drains the battery, whereas standby seems to be quite good, but need to turn off wifi. I will see how it fairs tomorrow, and post a picture.
Sent from my HTC Desire Z using XDA App
28% for wifi seems really high. I always have wifi on and it only takes up 6%.

(Q) nand android and battery life?

So, what's the deal with hd2 with nand adroid and battery life? Is it poor? I mean I still have to do a full day test I just got my hd2, but what is to expect? And there's any extended batteries that you guys could recommend
Sent from my HTC HD2 using xda premium
It really depends on what build you use, the kernel it's based on and how you use your phone.
I use my phone all day with internet connection, I get about 13 hours out of a charged battery, that's with WiFi almost constantly on and using Whatsapp, Facebook and browser a lot and beside that the occasional game.
This is on Hyperdroid CM7.
With less use of the phone and turning off the WiFi connection I can get about 25 - 26 hrs on a fully charged battery. If I really try hard I can get 2 full days out of the battery (that means almost no use of WiFi and turning off the data connection as much as possible)
Mind you this battery is 1 year old and abused (quick half charges every now and then)
The battery life of the HD2 isn't the best. But with a good build and a program like SuperPower or JuiceDefender you can get pretty good results (atleast a full day of using your phone.. which to me is exactly what I want.)
I personally do not have experience with extended batteries, I'm still on my stock HD2 battery
So far on hyperdriid the battery is been not really good, is only Been maybe 2 hours without wifi and screen brightness all the way to thebottom and is already at 76% not good at all lol I will let it drain and try again tomorrow.
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Like bever86 said, it depends on which build you use. And unfortunately you can't know which rom has the lowest battery drainage without flashing and checking out yourself.
Here's some of the rom's i tested:
UltimateDroid 3.3 - was okay. I got at least a day with it.
I tried some version of MIUI which was pretty bad. It didnt last from 8am to 1pm.
WindowsPhone7 - was okay too. Pretty much the same with the UltimateDroid.
Now I'm using SENSATION XL V 2.5 stock ALL IN ONE. I just flashed it yesterday but it seems very good. I used wifi to download apps all day and it hasnt even dropped to %60.
Right now I'm with hyperdroid and dorimanx.... its awful... if I use the phone for 20 minutes idk, browsing with 3g the battery drops Maybe 15 % is alot even. With screen with minimum brightness and not overcllocked.... I don't know what to do, I don't have money for a bigger battery and I could sell the phone but nothing good is available for under 200 used. Uhmmm what to do what to do...
Sent from my HD2 using xda premium
I Easily get 14 hours of pretty heavy usage on hyperdroid, with an extended battery I can get 3 days.
It depends a lot on how you configure your OS, how many apps are auto-sync, signal strength and the health of your battery.
Last one can't be underestimated, your battery losses about 10% of capacity per year under the best possible conditions. In realistic usage, your battery is junk after a couple of years.
I run my phone OC'd with 3g and auto sync. Before I replaced my battery half an hour of browsing would drain about 15%, same setup new battery, the drain is about 3%.
Sent from my HD2 using Tapatalk

[Q] I want to get a new battery for my glacier.

I want to get a new battery for my glacier, as the one I have now can't last an entire day with slight usage anymore. I am overclocked using JuiceDefender, with 122 min, 1017 Max idle, and 1305 Max. Smartass v2 governor. I have disabled over clock in the past, and still gave the same result. I've heard of the Anker/Hyperion batteries for this phone. Any links to them?
Sent from my HTC Glacier using xda premium
Amazon is your friend.
http://www.amazon.com/gp/aw/d/B0068ZRX7Y/ref=redir_mdp_mobile
Here's another option.
Haven't tried it myself but it look decent.
http://www.ebay.com/itm/270960834609?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
I bought the Anker ones from Amazon. 2 1550 mah batteries with a universal charger, and so far I've only had to use one. It's been amazing.
Yesterday, I started the day at 7am with 100%, played 1 45min long video (stored on SD Card, not streaming), watched 5 YouTube videos (avg. 10 mins each), had Pandora on for about 1 hr on regular quality, and did some reading using Aldiko. By 5pm, my battery was down to 36%. Screen brightness was 25%, wifi off, gps on, bluetooth off. I do have it underclocked slightly when it gets below 50%, but overall the performance has been incredible.
nmw407 said:
I bought the Anker ones from Amazon. 2 1550 mah batteries with a universal charger, and so far I've only had to use one. It's been amazing.
Yesterday, I started the day at 7am with 100%, played 1 45min long video (stored on SD Card, not streaming), watched 5 YouTube videos (avg. 10 mins each), had Pandora on for about 1 hr on regular quality, and did some reading using Aldiko. By 5pm, my battery was down to 36%. Screen brightness was 25%, wifi off, gps on, bluetooth off. I do have it underclocked slightly when it gets below 50%, but overall the performance has been incredible.
Click to expand...
Click to collapse
i'm getting the Anker this weekend
Sent from my HTC Glacier using xda app-developers app
estallings15 said:
Amazon is your friend.
http://www.amazon.com/gp/aw/d/B0068ZRX7Y/ref=redir_mdp_mobile
Click to expand...
Click to collapse
Ordered these batteries came with two batteries and in wall charger then also ordered HTC original battery that comes with phone and both last about the same going about 8/9 hours of descent usage some GPS lots of text web browsing usual at work stuff!
Sent from my myTouch 4g using xda app-developers app
YourCancer01 said:
Ordered these batteries came with two batteries and in wall charger then also ordered HTC original battery that comes with phone and both last about the same going about 8/9 hours of descent usage some GPS lots of text web browsing usual at work stuff!
Sent from my myTouch 4g using xda app-developers app
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Click to collapse
I'll second or third the Anker batteries. Replaced the stock one after about 1 year when it got "fat". Been working great, 8-9 hours of pandora over wifi, minimal screen on time and I'm usually around 30-40% at the end of the day. No juice defender, or setCPU, or anything, just the ondemand governor in CM7.
InvisibleNinja98 said:
i'm getting the Anker this weekend
Sent from my HTC Glacier using xda app-developers app
Click to expand...
Click to collapse
Anker's been great with CM7.1 :good:

To all those with lousy battery times!

I have a year old Note and have been getting progressively lower battery times, I have tried every possible trick and several ROMS. Recently was getting as low as 12hrs. I have had a cheap replacement battery (non Samsung) which was not used often. Recently when I used it I noticed about the same battery life as the original. I purchased a new Samsung battery and now I am getting over 40hrs on one charge with moderate use and sync on with no other changes.
My messge is : change your battery at least every 8-10 months, you will be astonished as I was. One of the great features of the Note is the ease of change of battery, use it!
Yep same for new battery and it's like I have a new phone. Without changing anything my screen on time almost double.
Envoyé depuis mon GT-N7000
I've been doing that for over a decade now but this time i bight a hyperion aftermarket.
I bought two actually. I keep one in my car. This way I'm guaranteed a full day's worth of heavy usage.
Also got the dock + second battery charger.
I'll never get a mobile without the ability to replace the battery.
Screw the new HTC devices.
+1 CorruptedSanity
Non removable battery is a deal breaker - your phone will be useless after 12-24 months depending on the charge cycle.
Gotta visit HTC forums...
same here
after 12month I replaced my Samsung battery with a Anker 2700mha and my battery life doubles.
Sent from my GT-N7000 using xda app-developers app
I am using sun global battery 3000mAh, so far I get 4hours 30 minutes of screen on time and 12hours 45minutes of usage, 9hours wifi on
Sent from my GT-N7000 using xda app-developers app
kernels
edeplano said:
I have a year old Note and have been getting progressively lower battery times, I have tried every possible trick and several ROMS. Recently was getting as low as 12hrs. I have had a cheap replacement battery (non Samsung) which was not used often. Recently when I used it I noticed about the same battery life as the original. I purchased a new Samsung battery and now I am getting over 40hrs on one charge with moderate use and sync on with no other changes.
My messge is : change your battery at least every 8-10 months, you will be astonished as I was. One of the great features of the Note is the ease of change of battery, use it!
Click to expand...
Click to collapse
i don't have the time to order a new battery online or look for it in stores so simply i swap out the kernel for the rom i'm using and with the current one i get about 20hrs which isn't much compared to when i got it a couple months ago and worse yet if you have on hsdpa+ whole day battery life drops to about 2/3
After one year (for me ten months) the note 1 needs a new battery. Decreasing bat life, random restarts, and screen flickering are all indicators. I thought i had runaway process issue or hardware problem. But i finally ordered an ankor battery from Amazon and my unit is fine andback to 20hrs.
I thought this was settled back in Nov.
Now just waiting for my jb!
Sent from my GT-N7000 using xda app-developers app
edeplano said:
I have a year old Note and have been getting progressively lower battery times, I have tried every possible trick and several ROMS. Recently was getting as low as 12hrs. I have had a cheap replacement battery (non Samsung) which was not used often. Recently when I used it I noticed about the same battery life as the original. I purchased a new Samsung battery and now I am getting over 40hrs on one charge with moderate use and sync on with no other changes.
My messge is : change your battery at least every 8-10 months, you will be astonished as I was. One of the great features of the Note is the ease of change of battery, use it!
Click to expand...
Click to collapse
Do not buy a spare the time time as the phone if you are not going to use it until the original goes as it will deteriorate from the day it's made, even with out use.
From box 13......
I don't know if this is still necessary nowadays, but I always use the battery till it's about to turn off the phone. My batteries always have a pretty good lifetime, so I imagine that helps.
hyperken said:
I am using sun global battery 3000mAh, so far I get 4hours 30 minutes of screen on time and 12hours 45minutes of usage, 9hours wifi on
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
My 10 month old stock battery is still giving me much more on screen time with wifi. This is reduced to half. I used to get 10-12 hours on screen time when i got it out of the box.
Sent from my GT-N7000 using xda app-developers app
qazibasit said:
My 10 month old stock battery is still giving me much more on screen time with wifi. This is reduced to half. I used to get 10-12 hours on screen time when i got it out of the box.
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
10-12 hours of screen on time with a single charge and one battery (2500 mAh) ?
Boy124 said:
10-12 hours of screen on time with a single charge and one battery (2500 mAh) ?
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Click to collapse
In his dreams I have 2,5 hours screen on time with autobrightness. That was much better on gingerbread days. Maybe leaked Jb versions are not well optimized. We will see after official update. I think I will buy an original battery too.
Sent from my GT-N7000 using xda premium
elhazguy said:
I don't know if this is still necessary nowadays, but I always use the battery till it's about to turn off the phone. My batteries always have a pretty good lifetime, so I imagine that helps.
Click to expand...
Click to collapse
This is a common misconception that if you leave the battery to almost deplete every time it will be better for it in he long run. I have done a lot of research on this topic for laptops and smartphones. Essentially they use the same type of battery technology which does not suffer from memory effect, but if you stress the battery a lot (letting it deplete before you charge it again or almost deplete below 5%) than it will damage it more quickly.
The optimal way of charging your battery is:
1) After the first cycles just charge it whenever you want (even it is at 70% and you are at work, you can plug it to get another 10% and then unplug and use)
2) Don't let it deplete, it will stress the battery too much and damage it in the long run
3) Every 30 cycles, you can let it discharge to below 5% and let it recharge until 100%
I have done this on my PC which still has its battery at above 80% after almost 3 years, and to some extent on my Note, but as I can't always foresee how things will play out I sometimes need to use to until the last drop of energy .
Hope this info helps.
10-12 hours with stock rom and stock battery. Now it has dropped to 7-8 hours. With no replacement. I will be getting another battery soon.
In his dreams what dou you mean?? I posted my current battery status.
Sent from my GT-N7000 using xda app-developers app
qazibasit said:
10-12 hours with stock rom and stock battery. Now it has dropped to 7-8 hours. With no replacement. I will be getting another battery soon.
In his dreams what dou you mean?? I posted my current battery status.
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
Wonderful.
You are getting 7-8 hours of 'screen on time' with a one year old degraded battery. When you get a new one; lemme know, I would like you buy the old one of yours.
qazibasit said:
10-12 hours with stock rom and stock battery. Now it has dropped to 7-8 hours. With no replacement. I will be getting another battery soon.
In his dreams what dou you mean?? I posted my current battery status.
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
Buddy....it's not the screen time, its of total use. Click on screen and it will show you the screen time.
Sent from my GT-N7000 using xda premium
Attaching some screenshots so please can anybody temme that my battery is working fine or not..i am lil tensed as it is discharging very quickly when i am using my handset without much wifi and no 3g and at night with no usage it is using about 7-8%.....
Sent from my GT-N7000 using xda app-developers app
That is definitely battery drain. Better post a screen of the battery your apps are using...
With a brand new battery, you cannot achieve much more than 5 hours of screen on time with general usage.
You can indeed get much more than that when watching video, but that is the only scenario where that is possible (or maybe staring at a black picture for hours).
So people saying that they get 10 to 12 hours of screen on time are really getting 10 to 12 hours of uptime, meaning the phone is turned on but is sleeping most of the time, with maybe 2 to 3 hours of screen on time.
That's lousy battery life, and those people should buy a new battery.

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