LQM New T54FJ Laptop Battery for Dell Latitude E5420 E5520 E6420 E6520 Compatible P/N: M5Y0 X 312-1163 HCJWT 7FJ92-12 Months Warranty (E6420) Battery Type: 9 Cells ,Li-ion 11.1V 7800mAh Color: Black Compatible P/N:P8TC7 P9TJ0 R48V3 PRRRF RU485 T54F3 T54FJ UJ499 YKF0M X57F1 04NW9 312-1163 Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. FIT MODELS:Vostro 3460 Series Vostro 3560 Series Latitude E5420 E5420 N-Series E5430 E5520 E5520 BRC 6 E5520 N-Series E5520m E5530 E6420 E6420 N-Series E6430 E6430 ATG E6520 E6520 N-Series E6530 12 months hassle-free warranty service.We provide best prices possible on the highest quality products and the most popular brands. Please check if this battery is compatible with your computer before purchasing. Part numbers of compatible batteries and Computers are listed as following.