My battery dies over night, i mean i drive it its fine, the alternator charges it, when it is at idle the battery has about 11-12 volts, when driving it has about 13-14, when i park it, the battery lose volts over night. anybody no whats wrong?

 

Take the car to a local parts store. Several of them will check battery's for free. Even though your alternator may be good, the battery may be bad.

 

already did they said my battery is 100% health, although it was overcharging or something

 

hmm well i'd go ahead and disconnect the alarm then. Also if u have any after market electronics, i'd check them out. In the mean time as a temp fix u could disconnect the battery every night.