11.4V, 3850mAh, Li-Polymer Battery fits Dell, Latitude 5289 2-in-1, Latitude 7390 2-in-1, 43.89WhBattery Fits Models: Latitude 5289 2 in 1, Latitude 7390 2 in 1 Battery Part Numbers: 71tg4, Cfx97, X49c1 Although a generic version of the battery, the battery we supply is designed and built to be as robust and as good quality as the original OEM battery. The replacement battery listed here is developed using the highest quality components. Finding the correct battery for your product can be difficult. There are so many models and part numbers it