18 Replies Latest reply on Jan 26, 2015 10:49 PM by petesnook Branched from an earlier discussion.

    samsung GT4N questions, battery?

    XRaiderV1

      and I've now noticed on boot the last couple charge cycles, from a full charge the night previous, that my tablet has decided to loose two percent off a full 100% charge the next day.

        • Re: samsung GT4N questions, battery?
          Froide

          Is wireless turned on?  If so, it's possible that updates and notification checks are drawing battery power. As I posted somewhere else in these boards earlier, I used Greenify yesterday to hibernate all my apps other than the  calendar, to-do list, timer, and security apps. Seems to be helping conserve battery power.

            • Re: samsung GT4N questions, battery?
              XRaiderV1

              we're talking before its even had a chance to connect to a wifi network, and I'm seeing from 100% down to 98%, when I know for a fact it was 100% when I disconnected the charger and shut down.

                • Re: samsung GT4N questions, battery?
                  bobstro

                  I wouldn't consider 2% battery drop overnight an issue for a device that was on but sleeping even with wifi off. If the device is active at all (check battery stats or load a tool to track), it's going to require some battery. Also keep in mind that the little software battery gauges are notoriously imprecise. Consider it "about" how much you have left. It can take a few battery cycles before they're even remotely accurate. I once ran for over 3 hours streaming music with the display on when my battery (different device) showed only 1% remaining.

                    • Re: samsung GT4N questions, battery?
                      XRaiderV1

                      I'm concerned as I shut the device off completely after every charge cycle.

                       

                      so, should I run the battery all the way down a few times bobstro, to help 'accurize' the battery?

                        • Re: samsung GT4N questions, battery?
                          TEGriffin

                          I haven't had any issues with my Nook, but with my Note 3 that was a recommended strategy if the battery started showing a decline.  Also, have you looked at the battery manager to see if there is any particular application that may be drawing more power now than the past?

                            • Re: samsung GT4N questions, battery?
                              Froide

                              @

                                • Re: samsung GT4N questions, battery?
                                  TEGriffin

                                  I love the Note.  It does everything I want, plus the screen is big enough to use it for more than just a phone.  More than once I've used it to watch a movie when my wife monopolizes the TV for her shows.  As far as reading on it, I will say that the nook is better because more real estate on the screen is always good, but it's still pretty useful for reading on the go.  In fact, I see people with previous generation iphones and cannot fathom how they can even see with such small screens. 

                                   

                                  Size-wise, I was concerned at first that it might be a bit on the big side but I quickly got over that.  When I'm out in public I'll throw it in my front pocket of my jeans or coat.  When I'm using it, I haven't found it to be too big or bulky.

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                                • Re: samsung GT4N questions, battery?
                                  XRaiderV1

                                  the only thing that I can think of thats different now is I've got teamspeak on the tablet, but to my knowledge that doesnt auto run from a cold startup..

                                    • Re: samsung GT4N questions, battery?
                                      TEGriffin

                                      Batteries can be such fickle things.  I wouldn't worry about it for now, but if it ends up being a problem I'd do some research on replacing the battery.  Even though the back appears sealed, there are plenty of youtube videos and resources available to assist with replacing batteries.

                                  • Re: samsung GT4N questions, battery?
                                    bobstro

                                    XRaiderV1 wrote:

                                     

                                    I'm concerned as I shut the device off completely after every charge cycle.

                                     

                                    so, should I run the battery all the way down a few times bobstro, to help 'accurize' the battery?

                                    My honest advice is not to obsess about it. The indicator, which is at best an approximation, only showed a drop of 2% over one night with the unit off. If it drops precipitously over successive nights, then perhaps worry. After wasting way too many hours "optimizing" battery use on various devices, I've learned to not worry about it unless it actually interferes with using the device. I wouldn't spend time diagnosing running apps if it was turned off at the time in question, and it's way too early to be looking at a new battery. See if it's an actual problem first. The battery indicator will calibrate itself over time with normal usage. You can speed it up by doing a full cycle or two if you want. Again, though, until it actually poops out prematurely, I wouldn't lose sleep over it.

                                      • Re: samsung GT4N questions, battery?
                                        XRaiderV1

                                        question, how do I tell whats using battery and how much at that?

                                          • Re: samsung GT4N questions, battery?
                                            bobstro

                                            On most Android devices, opening Settings-Battery will give a summary of what's consuming battery. If most of its going to your display, about all you can do is turn down the brightness. Tap the graph to see if your device is entering sleep mode, how long wifi is on for and more info. 

                                             

                                            There are apps that will give more detail, but these should suffice to see if you've got a problem. The best app I've found for power management is Green Pow from GoPS.

                                             

                                            Back when I rooted my first NC, I spent months compulsively trying to extend my battery life, fussing with things like modified CPU clock speeds and governors. In the end, I found that screen brightness made the biggest difference, followed by making sure the device enters sleep mode properly, then managing wifi. Green Power made it all simple.

                                             

                                            YMMV, of course. Make sure nothing is keeping it awake (Wake Locks).

                                • Re: samsung GT4N questions, battery?
                                  XRaiderV1

                                  question..do I HAVE to turn it on to charge it or can I just plug it in while turned off?

                                    • Re: samsung GT4N questions, battery?
                                      petesnook

                                      You can do a full power down on the SGT4N and charge it. When you plug the cord in you will get a brief black and white image of a battery followed by a 30 second animated image of a green battery charging, but the device remains powered down.

                                       

                                      Previous Nook tablets would turn on when you plugged in the cord, but no so with the SGT4N.