This battery is compatible with following part numbers:

FOR Dell

312-0701 312-0702

A2990667 KM958

KM965 MT264

WU946

This battery is compatible with following models:

FOR Dell

for Studio 1535 for Studio 1536

for Studio 1537 for Studio 1555

for Studio 1557 for Studio 1558

for Studio PP33L for Studio PP39L