Battery Biz Hi-Capacity B-5909 Laptop Battery: * Warranty: 12 MONTHS * Chemistry: Li-Ion * Original Amp: 3.8 * Volts: 11.1 * AmpHours: 4 * Color: Black * Comment1: 44Wh * Number of Cells: 6 * Vendor Warranty: 12 MONTHS * Works with Dell Latitude D420 and more, JG172 312-0443