Is it a lithium battery? If it is a recent phone it almost certainly will be. In my other hobby, rc helicopters, lithium batterys are commonly used, and i have heared many stories of damaged lithium batterys exploding, one person i know had his shed burned down by one! You could try it, but when it is charging watch to see if it starts to swell, if it does run! ( and unplug the charger... )