This laptop battery can replace the following part numbers of Dell:
312-1123, J70W7, JWPHF

Battery Type: Li-ion
Voltage: 11.10V
Capacity: 4400mAh
Color: Black
Dimension: 209.20 x 54.40 x 20.40 mm
Product Type: Replacement Battery (Brand New)
Weight: 357.20 g

This replacement battery is also compatible with the following models of Dell:

Dell
    Dell XPS 14 (L401X),
    Dell XPS 14,
    Dell XPS 15 (L501X),
    Dell XPS 15,
    Dell XPS 17 (L701X),
    Dell XPS 17,
    Dell XPS L401X,
    Dell XPS L501X,
    Dell XPS L502X,
    Dell XPS L701X,
    Dell XPS L702X