Specifications: Battery Type: Li-ion; Voltage: 15.2V; Capacity: 63Wh; Battery life: Up to 500 recharge cycles over the life of the battery
Compatible Part Number: RJ40G 01K2CF 075X16 WY9DX 0WK3F1 0M3KCN 005R42
Compatible Laptop/Notebook Models: Replacement for Dell Latitude 14 5420 Series, Replacement for Dell Latitude 15 5520 Series; Replacement for Dell Precision 15 3560 Series; Replacement for Dell P137G P137G001 P104F P104F001 P104F002 Series
Purchasing Note: There are 2 battery(RJ40G-63Wh and WY9DX-42Wh)of the Latitude 5420 5520 laptop,Please choose the which one you are going to replace and according to your laptop's original battery
Note: If the new battery is not recognized during the initial installation, please reinstall and check if the interface is fully connected. Discharge the new battery to 10-20% (not 0%), then charge and cycle 3-4 times to wake up the new battery