HWG E6400 Battery (9-Cells) Compatible Dell Latitude E6400 E6400 ATG E6400 XFR E6410 E6410 ATG E6500 E6510 etc. Series, Fits Precision M2400 M4400 M4500 etc. Series (11.1V 7800mAh) Battery type: Li-ion; Capacity: 7800mAh; Cells: 9-cell; Voltage: 11.1V. Compatible Models:Dell Latitude E6400 E6400 ATG E6400 XFR E6410 E6410 ATG E6500 E6510 etc. Series, Dell Precision M2400 M4400 M4500 etc. Series 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