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    Battery problems (Samsung Galaxy S2)

    I just made a discussion relating to 3g, but this is about my battery life. It is on up time of 2 hour 30 mins, and from 100%, only 65% remains, I have been using it with light usage, such as navigating menus, going on internet for a few mins, all applications I have killed using adavanced task killer, at this rate it will be dead in 6 hours, that doesn't seem right to me.

    25 Comments

    Original Poster

    Brightness is only 25%, and wi-fi sharing is off, I have no 3g on either,

    Banned

    hahahaa

    Original Poster

    Mascherano

    hahahaa



    Can anyone actually help me please.

    how long have you had the s2 ? it does take a few charges for the battery to bed in, have you also updated to the latest kf2 fw ,2.3.4 is out hopefully next week which should optimize the battery for dual core phones, as at the moment there are a lot of people are reporting the battery drain issue.

    Original Poster

    the porter

    how long have you had the s2 ? it does take a few charges for the battery … how long have you had the s2 ? it does take a few charges for the battery to bed in, have you also updated to the latest kf2 fw ,2.3.4 is out hopefully next week which should optimize the battery for dual core phones, as at the moment there are a lot of people are reporting the battery drain issue.



    I have only had it since 4:30pm, and I didn't know about the update. Reason I am so concerned is that some people were able to go from friday to Monday without charging with light usage. Should I give my phone a chance or send it back?

    i get a day out of mine like most smartphones but i do use it as intended,run it through kies see what update it throws up if any, you would have to use odin if you want to run other fw but just give it chance for a few days you have at least 7 days to send it back if bought online.

    Original Poster

    the porter

    i get a day out of mine like most smartphones but i do use it as … i get a day out of mine like most smartphones but i do use it as intended,run it through kies see what update it throws up if any, you would have to use odin if you want to run other fw but just give it chance for a few days you have at least 7 days to send it back if bought online.



    Okay that's good to know, and ill give it a chance. Thanks.

    joshjw

    I have only had it since 4:30pm, and I didn't know about the update. … I have only had it since 4:30pm, and I didn't know about the update. Reason I am so concerned is that some people were able to go from friday to Monday without charging with light usage. Should I give my phone a chance or send it back?



    good luck sending it back

    charge the battery for a couple hours ,then add an 2 more hrs repeat a few more times and you will gain maximum battery life.

    Original Poster

    jamstaruk1972

    good luck sending it backcharge the battery for a couple hours ,then add … good luck sending it backcharge the battery for a couple hours ,then add an 2 more hrs repeat a few more times and you will gain maximum battery life.



    Do you mean full charge it, then fully charge again but plus 2 hours, then again but plus 4?

    no never fully charge, just do it for any short length then gradually increase it thats the way to get max charge from a battery. if you fully charge a battery(1st time it will only every gain around 60-75% of its power

    after 4 or 5 charges like this it will be fine to charge overnight and you will find max battery performence

    Original Poster

    jamstaruk1972

    no never fully charge, just do it for any short length then gradually … no never fully charge, just do it for any short length then gradually increase it thats the way to get max charge from a battery. if you fully charge a battery(1st time it will only every gain around 60-75% of its power



    I have already charged it 100% first time though out of the box :\

    Original Poster

    jamstaruk1972

    after 4 or 5 charges like this it will be fine to charge overnight and … after 4 or 5 charges like this it will be fine to charge overnight and you will find max battery performence



    Sorry for questions, but by this do you mean let the phone charge up but not for long, then next a bit longer and so on for 4-5 turns. Then I can full charge it overnight, is that what you mean?

    jamstaruk1972

    good luck sending it backcharge the battery for a couple hours ,then add … good luck sending it backcharge the battery for a couple hours ,then add an 2 more hrs repeat a few more times and you will gain maximum battery life.



    Charging a battery like this can damage it. Just charge the battery like you have done and then recharge as required. It will take 5 or 6 full charges to optimize the battery so may take 4 or 5 days normal charging.
    After 4 or 5 days you will see an improvement in battery life. The Galaxy S2 has a few glitches at the moment just like all latest technology. Go to this site and have a read. forum.xda-developers.com/for…055

    I am getting a full day from my SGS2 with quite heavy use.

    On my Galaxy S I found leaving Auto Sync on would kill the battery, try turning that off if it's on unless really needed. Settings\Accounts and Sync\Auto-Sync.

    Mascherano

    hahahaa



    Erm.... Hahahahaha... Erm.... Yeah ok.

    Op, my battery on my samsung galaxy is pretty crap.
    Do you charge it before it is close to empty of charge?

    neilgreig

    Charging a battery like this can damage it. Just charge the battery like … Charging a battery like this can damage it. Just charge the battery like you have done and then recharge as required. It will take 5 or 6 full charges to optimize the battery so may take 4 or 5 days normal charging.After 4 or 5 days you will see an improvement in battery life. The Galaxy S2 has a few glitches at the moment just like all latest technology. Go to this site and have a read. http://forum.xda-developers.com/forumdisplay.php?s=&daysprune=-1&f=1055I am getting a full day from my SGS2 with quite heavy use.




    it wont damage the battery

    Original Poster

    jonny619447

    Erm.... Hahahahaha... Erm.... Yeah ok. Op, my battery on my samsung … Erm.... Hahahahaha... Erm.... Yeah ok. Op, my battery on my samsung galaxy is pretty crap. Do you charge it before it is close to empty of charge?



    No I charged it fully before I used it, then I charged it for an hour last night from 40%- 90%. That's all so far.

    Original Poster

    So should I just do the battery cycle thing, where I charge it for a few hours, then again and again until battery is optimised or should I do this battery calibration which I found:

    1. Run the device down until it turns itself off.
    2. Turn it back on and wait for it to turn itself off again.
    3. Remove the battery for 10 seconds.
    4. Replace the battery, but leave the device off.
    5. Charge the device until full and then for another hour.

    You are wrong.
    Lithium-ion batteries should be charged fully and not allowed to discharge completely. They have no memory so can be charged and recharged at any point. Charging them fully and disconecting the charger then charging them some more in some sort of bizaar battery ritual is not recommended. Perhaps you can point the op to a battery manufacturers instructions regarding this risky procedure. I am sure you will be able to point the op to bits of advice that have been added to by similar people as yourself on forums, each of you believing that the other has stated fact.
    There is a risk of explosion, fire or at the least,a damaged phone.
    Just Google "overcharging a li-ion battery" (_;)

    jamstaruk1972

    it wont damage the battery



    Edited by: "neilgreig" 22nd Jun 2011

    Original Poster

    So do I fully charge my phone or only charge it abit, still confused as I don't want to ruin my phone.

    joshjw

    So do I fully charge my phone or only charge it abit, still confused as I … So do I fully charge my phone or only charge it abit, still confused as I don't want to ruin my phone.



    Fully charge it. Remember, once charged it stops charging and the battery will start to drop. It may drop to 90% before charging again, so if you unplug the charger after a full charge and see around 90% it's because it was discharging (not a fault)

    Original Poster

    Richierea

    Fully charge it. Remember, once charged it stops charging and the battery … Fully charge it. Remember, once charged it stops charging and the battery will start to drop. It may drop to 90% before charging again, so if you unplug the charger after a full charge and see around 90% it's because it was discharging (not a fault)



    How do I know when to unplug my phone, sorry bit confused still as people are saying other things so that it will optimise the maximum battery life.

    I quite often leave my S2 to charge overnight. When the battery has charged at say 2 in the morning it is still left plugged in for the next 6 hours without any problems because the phone software that deals with the battery charging is programmed to protect the battery. Its only when you try to force the phone to recharge by unpluging, switching off,wait 1 hour, plug it back in ,charge for another 47 minutes and 17 seconds yada yada yada............
    Just charge the phone and when the battery gets low, charge it again, it really is as simple as that. If you want to remove your phone when it is only 90% charged, it is not a problem, it doesn't matter. These batteries do not have a memory problem.
    Stop worrying about it and just enjoy this fab phone.
    Edited by: "neilgreig" 23rd Jun 2011

    neilgreig

    I quite often leave my S2 to charge overnight. When the battery has … I quite often leave my S2 to charge overnight. When the battery has charged at say 2 in the morning it is still left plugged in for the next 6 hours without any problems because the phone software that deals with the battery charging is programmed to protect the battery. Its only when you try to force the phone to recharge by unpluging, switching off,wait 1 hour, plug it back in ,charge for another 47 minutes and 17 seconds yada yada yada............Just charge the phone and when the battery gets low, charge it again, it really is as simple as that. If you want to remove your phone when it is only 90% charged, it is not a problem, it doesn't matter. These batteries do not have a memory problem.Stop worrying about it and just enjoy this fab phone.



    Agreed, I think the op is worrying far too much about charging. It won't overcharge, just charge when needed.
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