Heating and batting

[AP67]

Il mio smartphone è soggetto a forti riscaldamenti e la batteria si scarica in pochissimo tempo. 

Ho sostituito batteria e inibito molte applicazioni ma il problema non si è risolto. 

Come si può rimediare? 

 Heating and batting
My smartphone is subject to heavy heating and the battery is discharged in no time.
I replaced the battery and inhibited many applications but the problem did not resolve.
How can it be remedied?

[Uliwooly]

@AP67

I've edited your post as this is an English only forum, you can use Google Translate to reply and/or post. 

The longer that you use the phone the hotter it'll get, more so now that it's summer