Specifications: Battery type: Li-ion. Color: Black. Voltage: 15.2V. Capacity: 68Wh. Cells: 4-Cell Compatible Part Number: MV07R JJRRD 0JJRRD 266J9 72WGV W5W19 P89F MVO7R PN1VN M4GWP (Note: There are 2 different models MV07R 68Wh 4-Cell & 266J9 51Wh 3-Cell for Dell G3 15 3500 3590 G5 5500 5505, please confirm with your original battery before purchase) Compatible Models: Replacement for Dell G3 15 3500 3590 3700 3790 Series; Replacement for Dell G5 15 5500 5505 Series Security: All ZTHY products are Certified by CE, UL for safety. Strict guidelines for compatibility, and standards compliance for environment safety 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