Bay Valley Parts 9-Cell 10.8V 7800mAh New Replacement Laptop Battery for HP: 586006-321,586006-361,586007-541,586028-341,588178-141,593550-001,593553-001,593554-001,593562-001,636631-001,640320-001 Battery Type: 9 Cells Li-ion Capacity: 10.8V 7800mAh Color: Black Weight: 19oz Using highest quality materials including grade-A brand-new cells Meets and exceeds OEM specifications and lasts longer hours Package Includes: One unit of brand-new replacement laptop battery for HP This product is CE & RoHS certified, so BUY WITH CONFIDENCE!!!