Default sony xperia z1 will not start after empty battery

My phone has remained switched on, when I went abroad, after returning after 20-25 days you try to charging , but not light is charging, try to connect it via USB to the computer and nothing again, not responding can-not to light ..
I even overnight on the charger and again nothing ...
Is there some kind of similar experience ... or know what it could be?
Thank you.