Replaces OEM # RW15F, 451-BCGO, 5TF10, 0RY3F9, CN-0RY3F9, RY3F9 Fits: DELL PRECISION 7530, DELL PRECISION 7540, DELL PRECISION 7730, DELL PRECISION 7740 Specs: 7.6V, 64WHR, 8421MAH, 4 CELL Brand New GreenTech replacement battery - 6 Month Replacement Warranty Each products has undergone rigorous testing to ensure the correct voltage, circuit protection, stable current, low self-discharge and CE / FCC / RoHS Certified for safety