MAIN OVERVIEW FEATURES: Application/Usage: NotebookBattery Rechargeable: YesBattery Size: Proprietary Battery SizeBattery Chemistry: Lithium Ion (Li-Ion)Height: 1.5"Width: 8"Depth: 1.7"Weight (Approximate): 8.80 ozCompatible to OEM Part Number: 312-0931Compatibility: Dell - Inspiron 11z (1110)Environmentally Friendly: YesEnvironmental Certification: RoHS