8 Replies Latest reply: Apr 10, 2012 9:06 AM by johnsu RSS

    My phone went down from 100% charge to 80% in 5 hours without use

      Is this normal?. I unpluged the phone when it reached 100% charge and five hours later I checked and it was down to 80% charge without any use of the phone in between. Is this normal or is there a power leakage somewhere ? If this is the case I will send back this phone and continue to use my Mytouch 4g. Thanks for your answers. Ed

        • 1. Re: My phone went down from 100% charge to 80% in 5 hours without use

          This is a SAMSUNG GALAXY S2

          • 2. Re: My phone went down from 100% charge to 80% in 5 hours without use
            ianxponent

            That sounds excessive. I've left mine for nearly twice that time and been down about 7%. I am also using juice defender to help.

            • 3. Re: My phone went down from 100% charge to 80% in 5 hours without use
              unclespoon

              4% an hour isn't bad at all to be honest with you, but I'd check the amount and frequency of updating widgets (mail, facebook, calendars, etc.) just to make sure cause they'll hog your battery even when you're "not using it" it's still doing stuff...

              • 4. Re: My phone went down from 100% charge to 80% in 5 hours without use
                smplyunprdctble

                Remember -- "not using your phone" doesn't mean it's not doing anything (as unclespoon eluded to).

                 

                You can be "not using your computer", but unless you power it down, it's using electricity.

                 

                Your phone is polling the network with things, and still has to be "on" for some fashion in order to get phone calls and text messages.  It's also doing twitter updates, facebook updates, words with friends updates, and whatever else you may have installed

                 

                Just because the screen is off, the device is not off.

                • 5. Re: My phone went down from 100% charge to 80% in 5 hours without use

                  Yes, I understand all of these facts mentioned by all of you BUT going from 100% to 80% without any use of the phone at all is not NORMAL. I always make sure all the active apps are closed, also the wifi, etc. According to MYTMOBILE SPECS this phone should have a STAND BY time of 167 hours. At the rate of 4% per hour it will take 25 hours to drain all its power off. Any ideas ? I spoke to someone on SAMSUNG.com via chat and they advised a soft reset which I did. I am going to test again to see what happens. Any other ideas will be appreciated. Thanks. Ed

                  • 6. Re: My phone went down from 100% charge to 80% in 5 hours without use
                    smplyunprdctble

                    I've learned the standby time lies.

                     

                    Example:  My MyTouch3G would get about 5 hours of "standby" battery life coming the end of me using it.  After I upgraded my device, I removed the SIM and performed a factory reset and I got TWELVE DAYS of standby time.  (I was on my way to bed when I heard the beep of the device complaining of low battery... I pulled it up and gawked).

                     

                    Which means standby time is based on signal strength, whether or not a signal is being used, wifi, 2G, 3G, 4G, the weather outside, etc.  If you have a weak signal, your standby time will be lower.  If you have a strong signal, you'll get more time.  You turn off the signal [remove SIM card], you'll get even more time.

                     

                    Where they come up with standby time numbers, I don't know.  Maybe it's the same magical location the EPA gets the MPG numbers for vehicles.

                     

                    I've managed to go once 24 hours on one charge.  That's about 4% per hour draining.  In the world of smartphones, that's pretty darn good.

                    • 7. Re: My phone went down from 100% charge to 80% in 5 hours without use

                      I'm thinking the magical number comes from a brand new phone in Airplane mode.  No games or anything running.  My experience with smartphones and being onboard US Navy ships when underway (out to sea) there are no cellphone towers or signals for you to attach to. So everyone puts there phones in Airplane mode.  From there I can honestly tell you my battery life was unbelieveable.  I could play games, watch movies and at the end of the day I was still over 75% of battery life.  This was my Vibrant mind you which has a much smaller battery and screen as well.  I have to agree with unclespoon and smplyunprdctble. There is no real issue with your phone.

                      • 8. Re: My phone went down from 100% charge to 80% in 5 hours without use

                        You have to realize, that when you download applications, those applications have access to your network and your internet. Every so often during the day they check for updates. Then the rest of the phones stock applications check for updates. Finally your cell signal checks the tower and refreshes your signal.