Bay Valley Parts DELL 0G278C 0G279C 0P721C 0P722C 0T117C 0Y026C G278C G279C P721C P722C T117C Y026C Y027C High Capacity Battery for DELL Vostro 1710 1710n 1720 1720n [Li-ion 6-cells 11.1V 5200mAh] Battery Type: 6 Cells Li-ion Capacity: 11.1V 4800mAh 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 Dell This product is CE & RoHS certified, so BUY WITH CONFIDENCE!!!