Me intereso tu pregunta y busque un poco por la Internet para encontrar esto, fijate si te sirve. http://forums.androidcentral.com/gen...ing-issue.html
Perdon por ponerlo en ingles, en el idioma del foro de donde lo saque, la parte en cuestion.
Until and unless any phone actually "knows" what a 100% charge (for any given battery) actually "looks" like, it cannot be expected to report completely accurate battery levels either using its built-in battery percentage meter, or any afermarket one, up on the notication bar (or even via any on-the-homescreen widgets). The purpose of (re)calibrating any given battery to the phone into which it has been newly-placed is simply so that said phone's internal battery-monitoring/reporting circuitry will properly recognize when said battery is really and truly at 100% charge so that said battery-monitoring/reporting circuitry will accurately report battery percentage via whatever battery percentage indicator is up in the notification (aka "status") bar. Fortunately, it's a simple and relatively quick process which anyone may do; but it absolutely must be done for any given battery very soon after it has been newly-installed into the phone...
...including, again, even only if the battery has been briefly removed just to unfreeze (or battery-removal-reset) a phone! Anytime, again, that the electro-physical connection between the phone and any given battery has been broken, then said battery must be recalibrated to said phone after it has been reinserted into said phone. And, certainly, any battery swapped-into the phone as part of the earlier-herein-mentioned quarterly use-then-rest methodology needs to be recalibrated to the phone soon after said swap-in.
For that reason, swapping two or three batteries in and out of the phone all day long just doesn't work. Because none of them ever get recalibrated to the phone, none of them are having their true charge levels accurately reported by the phone; and so it becomes a self-defeating thing since the battery, eventually, gets reported as nearly dead (and so the user insensibly swaps it out) when, in fact, it still has a considerable amount of charge in it. If, again, the phone is so heavily used that its overnight charge won't make it 'til the end of the day, then the only two solutions are to either do interim "refresh" recharges all day long, or get a larger battery (with concomitant larger phone back).
The charger and cable that should be used for battery (re)calibration should be the ones that came with the phone, if possible. If not, then a charger and cable of the type and caliber (and brand) as I earlier herein mentioned should be used; and you must make sure that said charger is capable of delivering at least the amperage of the charger that came with the phone (or if it's a multi-port charger, that you use the port which delivers the higher amperage).
Here's how to (re)calibrate a battery to a phone...
FIRST, charge the phone, with the phone turned-on, all the way to 100%. You will obviously need a battery percentage indicator up on the notification bar, which I have herein already covered. Only a percentage indicator will work: do not try to determine if the phone is at 100% charge using the graphic of a battery which displays, for example, half-full of green color if at 50% charge. You need a truly digital percentage indicator... either the one built-into the phone, if there is one, or an aftermarket one such as I herein earlier describe. So, anyway, first charge the phone all the way up to 100% while the phone is turned on.
SECOND, once the battery percentage indicator shows that the phone has been charged to 100% with its power on, then unplug the phone from the charger and immediately power-off the phone... meaning actually turn it off... all the way off... not merely blank its screen. To turn the phone truly off, long-press the hardware POWER button until the "Device options" dialog (the one that offers the abiliy to power off, or reset, or go into "Airplane mode") appears. Then choose "power off," and verify with "OK" that's that's really what you want to do. Then keep holding the phone in your hand, feeling for the little vibration burst, just before the blue LED light goes out, to indicate that the phone's really all the way off. Wait another few seconds after you feel that vibration burst (and the blue light goes out) to really make sure that the phone's by-golly all the way off... fully off.
THIRD, plug the charger into the turned-off phone; a green image of a battery will light-up, and that charging-while-off battery graphic will obviously be showing that it's charging. It will blank-out after a few seconds; that's okay, just let it charge while off. When it finally hits a 100%-charge-while-off, the little charging-while-off battery graphic will light-up again for a few seconds, showing a 100% charge in white letters. If the battery is brand new, this could take actually several minutes, so just be patient. And if you think you may have missed the brief light-up of the screen to show 100% charge, no problem: Just short-press-and-quickly-release the phone's POWER button to briefly light-up the screen's little charging-while-off battery graphic; and if it doesn't yet say 100%, then just keep being patient while it blanks again and just keeps charging-while-off.
FOURTH, when the phone finally reaches a 100% charge while off, then unplug the charger from the phone; and then, with the phone unplugged from the charger, power it back up again (in other words, long-press and hold the hardware POWER button until the "Samsung Galaxy Note II" splash graphic lights-up, and then release the POWER button and just patiently wait while the phone fully boots up; be careful not to simultaneously press either of the volume rocker hardware buttons on the left side of the phone while you're pressing the POWER button on right side). DO NOT RUSH THINGS! Just like a Windows computer, a phone takes a while to fully -- and that's the operative word -- boot-up. On a Windows machine, one can tell that the machine's finally fully booted-up by looking at its hard drive light to see when it finally calms down and stops being either fully on or frequently flickering; but a phone has no such hardware light, so it's best to just be patient and give the phone plenty of time to fully boot-up... maybe even as long as five minutes.
FIFTH, once the phone's fully booted-up, turn right around power it all the way off, again (long-pressing the POWER button until the dialog pops-up which allows the "power off" choice; then verify with "OK"; then wait 'til you feel the power-off vibration burst and the blue light goes out; then wait a few seconds for the phone to really-and-truly be all the way off).
SIXTH, once the phone's fully off, plug-in the charger again, and, again, perform a charge-while-off to 100% again. Again, it will briefly show the charging-while-off battery graphic, then blank; then it will briefly light-up again when it finally hits a 100% charge while off, then blank again; so pay attention. And, again, if you happen to miss the 100% charge-while-off brief light-up, just press-and-immediately-release the POWER button to briefly light-up the charging-while-off battery graphic to see if it shows 100% yet; and if not, then just let it blank and keep charging until it does. It should happen much faster this time, though; so just pay attention.
SEVENTH, once the phone's fully 100% charged-while-off, unplug the charger for the final (for this procedure) time; and then go ahead and power-up the phone normally; and after it's fully booted-up, use it normally. The battery is now calibrated to the phone.
NOTE: If it's a brand new battery, then repeat the process, just for good measure, after around five days. A battery that's been used, even if it has sat "resting" on a shelf for three months, need only be recalibrated once after being inserted back into a phone; only brand new, first-time-ever-used batteries should be recalibrated about five days after initial calibration.
If you do everything as I've herein explained, and are mindful of all the conditions and situations herein explained, and your phone doesn't have a hardware problem with the earlier-mentioned little circuit board inside it which has the USB port and bottom-of-phone mic on it, then you should never have so much as a moment's problem with charging your Samsung Galaxy family phone... ever. Do not be misled by people who apparently believe in witchcraft and/or voodoo, like the OP, here.