Replaces OEM # RWFFJ, 0J8FK9, J8FK9, CN-0J8FK9 Fits: DELL XPS 16 9640, XPS 9640, XPS9640-7097SLV-PUS Specs: 11.7V, 99.5WH, 8504MAH, 6 CELL Brand New GreenTech replacement battery - 6 Month Replacement Warranty Each product has undergone rigorous testing to ensure the correct voltage, circuit protection, stable current, low self-discharge and CE / FCC / RoHS Certified for safety