I'm having problems with my LG Optimus G e-970. The thing is that I got used (with 2 years of use approx.) And I realized I had the so damaged that the battery change. It really gave me a lot of trouble, turned it off without having reached 0% the battery, I could not take pictures using the flash of the camera with less than 30% because if not extinguished, among others. Logicamente before changing the battery the caliber repeatedly until you change the android software to cyanogenmod 12 and nothing was still having problems. The thing is is that once you change the battery, the Store told me to use a charger with 2 Ampere output. So that I buy a charger with 2 amp output. But now give me other problems, the thing is that it takes much more than before to load. And when I check the status of the battery during charging is not a straight line going up, but it goes up and down. For example, if I load the phone up to 30% and then start to use (during charging) battery low 28% me and I then rises to 31% and so on. E proven calibrate, change the software and nothing. Maybe it's the new charger or cable is too new, or the battery :(. I'm thinking about deleting the file manually BatteryStats see if I served