Specifications: Capacity: 4400/6600mAh Chemistry: Li-ion Voltage: 11.1V Cell: 6 / 9 cell Compatible Models: DELL XPS 14 Series DELL XPS 15 Series DELL XPS 17/17 3D Series DELL XPS14D Series DELL XPS15D Series DELL XPS17D Series DELL XPS L401x Series DELL XPS L402x Series DELL XPS L501x Series DELL XPS L502x Series DELL XPS L701x Series DELL XPS L701x 3D Series DELL XPS L702x Series Please carefully check your battery's Compatible Model & battery picture to ensure compatibility with your Laptop. What's in the box 1 x A