Exxact Parts Solutions&reg;New Laptop Battery for HP 535806-001, 536418-001 - ProBook 4410s/4411s/4416s 6-Cell 10.8V 5200mAh (14.1'' Display) Battery Type: Li-Polymer; Capacity: 5200mAh; Cells: 6-cell; Voltage: 10.8V 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