A little disappointed ... 166

I can not tell if the problem is with my Galaxy S3 4G or batteries but the battery does not hold more charge than the one a year. I did everything that was recommended on the Internet to calibrate batteries, nothing works. Wi-Fi, without GPS, brightness at minimum, it should reload the 2 times a day (minimum). Off night at midnight with the battery to 100%, it is 90% in the morning at 8:00. without anything have worked. I am more disappointed by Samsung as battery her pupp I received very quickly and not expensive (very good service)