1 Copper

Dell laptop battery identification

I have a dell laptop I3..and 1st time i got it repaired..but it seems to be battry has been changed by them..they have replaced my bttry with oold one.i want to prove that it is not my original battry..i do not have dell laptop information book.is there any code or printed data same for the laptop and battry to prove that it is real original one of the laptop???