Bay Valley Parts 6-Cell 10.8V 5200mAh New Replacement Laptop Battery for HP 513128-251, 513128-261, 513128-321, 513128-361, 535806-001, 536418-001, 572032-001, HSTNN-DB90, HSTNN-I60C-4, HSTNN-I61C-4 Battery Type: 6 Cells Li-ion Capacity: 10.8V 5200mAh Color: Black Weight: 13oz 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!!!