MAIN OVERVIEW FEATURES: Application/Usage: NotebookBattery Rechargeable: YesBattery Size: ProprietaryBattery Chemistry: Lithium Ion (Li-Ion)Battery Capacity: 4400 mAhOutput Voltage: 10.8 V DCMinimum Battery Recharge Time: 2.50 HourMaximum Battery Recharge Time: 5 HourHeight: 0.8"Width: 1.8"Depth: 10.4"Weight (Approximate): 10.93 ozCompatibility: HP Mini NotebooksHP ProBook Notebooks:4430s4431s4530s4535sEnvironmentally Friendly: YesEnvironmental Certification: RoHSLimited Warranty: 1 Year