HWG M5Y0X Battery (9-Cell) Compatible Dell Latitude E6420 E6520 E6530 E5420 E5520 E5430 E5530, Fits P/N: 2P2MJ T54FJ M5Y0X 312-1242 312-1165 PRV1Y E6420(11.1V 7800mAh) Battery type: Li-ion; Capacity: 7800mAh; Cells: 9-cell; Voltage: 11.1V. Compatible Models:Dell Latitude E Series ( E5420 /E5430 /E5520 /E5530 /E6420 / E6420 ATG / E6420 XFR / E6430 /E6430 ATG /E6430 XFR / E6520 / E6530 / E6430 ATG / E6430 XFR /E6530 ) 100% NEW from manufacturer; Up to 500 recharge cycles over the life of the battery. Every battery has passed factory testing; Durable grade A cells battery; Quality assurance.Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. Warranty: 24 x 7 email support; 12-month hassle-free warranty; Fulfilled by Amazon.