Compatible Brand For Dell Model No DELL Studio 1535 Number Of Cells 6 Capacity 4000 MAh Compatible Models Studio 15, Studio 1535, Studio 1536, Studio 1537, Studio 1555, Studio 1557, Studio 1558, Studio PP33L, Studio PP39L Compatible Parts No 312-0701, C313K, KM887, KM898, KM901, KM958, KW898, MT275, MT276, MT277, PP33L, PP39L, PW772, RM803, RM804, WU946, WU959, WU960, Y271J, MT264, WU965, PW773, KM965 Warranty 1 Year from Service Center