I then tested the second battery. After only a few hours, I noticed that the phone was off in my pocket, I put it down to an app that had the battery can be drained and I handed the charge on the battery wall charger provided using the first battery in my phone. After only a few minutes, the light of the charger is ironed blue (red during charging), I was surprised, I tried to remove and replace the battery in the charger but the light remained blue. I handed the battery in the phone but could not light it. I plugged the phone with the battery in and it started charging. After a few hours the battery was full. I switched the phone and everything seemed to work properly. After a few hours, the load was 63%, I put my phone, I emerged a few minutes later and there phone off and on again ... not even attempt to charge the battery in the wall charger: impossible. One of the two batteries is clearly defective, I wait to see if the second will also begin to empty at once and I will contact the service.