Exxact Parts Solutions&reg;New Laptop Battery for HP HSTNN-IB2R - Probook 4430S,4530S,4730S 9 Cell 11.1V 7800mAh Battery Type: Li-Polymer; Capacity: 7800mAh; Cells: 9-cell; Voltage: 11.1V Battery built by highest quality materials including grade-A brand-new cellswhich ensures fast charging and low power consumption Battery meets and exceeds OEM specifications and lasts longer hours Battery package includes: One brand-new generic replacement battery for HP Battery offered in this listing is CE & RoHS certified, so you can shop with a peace of mind