This is a BRAND NEW OEM Equivalent Replacement laptop battery with 6-month warranty and 7 days Money Back Guarantee. This NEW battery has passed the Full set of Testing 
 
      ?Compatible with the original battery used in: 
Dell Inspiron 1520, 1521, PP22L, 1720, 1721, PP22X 
Dell Vostro 1500, 1700 Series
 
 
     ?Compatible with the original battery part number: 
GK479, FK890, FP282, NR239, GR995 
KG479, NR222, TM980, 451-10477, 
312-0504, 312-0513, 312-0518, 312-0520, 
312-0575, 312-0576, 312-0577, 312-0589, 
312-0590, 312-0594, 312-0595, 451-10476