Only the seller can tell you -- the battery was made in 2020, but unless it came from Dell, or a seller that supplies only OEM parts like parts-people.com, its history is known only to the seller.  
Hi! I want to know if this battery I bought is original. The seller (a local vendor) insists that the battery is a genuine one, but the part numbers are not the same (underlined).  Hoping for immediate verification, so I can return the item and demand a refund. TIA!  [IMAGE]Replacement battery for Inspiron 14 5447
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