Magister, when you say that you put in charge you mean to connect to the wall charger or computer?
If it was to the wall charger, try to connect the iPhone to make sure it works properly.
If the charger does not work correctly, try again by changing the cable iPhone charger.
If the charger is working properly, try to reconnect it, making sure that the connector is securely seated in the IPAD and leave it connected a while. If you have not loaded correctly and the battery is completely discharged, sometimes you need a charging time to accumulate the energy required to remove the device.
Ultimately, if none of this works, you'll need to use the guarantee. All we can touch the rotten apple. ;)