BE&middot;SELL 5200mAh Laptop Battery For Dell Latitude E4200, fits F586J PP15S R331H R640C R839C R840C R841C U444C W343C X784C Y082C Y084C Y085C - 12 Months Warranty Voltage:11.1v Capacity:5200mAh Brand New, Full 1 year warranty CE-/FCC-/RoHS-certified for safety 100% OEM compatible! Guaranteed to meet or exceed OEM specifications!