I talked to the seller and he admitted the battery was not genuine. These are the red flags I found: 
Hello, I bought a new battery for my laptop.According to the website/store I bought from, The battery is genuine from dell. It looks just like my old battery, But I think there is something's wrong with the Dell part numberThe new number is YM5H6, while the old one I have is 1V2F6.An internet search shows that the new number I received (YM5H6) belongs to a different battery type (which also looks different from the battery Itself) The old battery code(1V2F6): [IMAGE] The new battery code(YM5H6): [IMAGE] In addition the DP/N ends in digit 8 and does not match the number in the long code that ending in digit 6. This is the only difference between the 2 batteries and they look the same. The new: [IMAGE] The old: [IMAGE]   Does anyone know if the battery is new or fake?
Is my battery genuine or fake?