Specifications: Capacity: 4400/6600mAh Chemistry: Li-ion Voltage: 11.1V Cell: 6 / 9 cell cells Compatible Models: Dell Latitude D620 Laptop Dell Latitude D630 Laptop Dell Latitude D630C Laptop Dell Latitude D630N Laptop Dell Latitude D631 Laptop Dell Latitude D640 Laptop Dell Workstation M2300 Please carefully check your battery's Compatible Model & battery picture to ensure compatibility with your Laptop. What's in the box 1 x A