Exxact Parts Solution&reg; DELL Compatible 6-Cell 11.1V 5200mAh New Replacement Laptop Battery for DELL Inspiron 15R (7520), 15R (5520) Battery Specs: 6 Cells Li-ion Capacity: 11.1V 5200mAh Color: Black Weight: 13oz Battery built by highest quality materials including grade-A brand-new cells Battery meets and exceeds OEM specifications and lasts longer hours Battery package includes: One brand-new generic replacement battery for DELL Inspiron 15R (7520), 15R (5520) Battery offered in this listing is CE & RoHS certified, so you can shop with a peace of mind.