Specifications: 9 Cell, Li-ion battery, Rated at 11.1V(10.8V Compatible) 7800mAh Compatible Models: 9Cell 7800mAh battery for Dell Latitude D830 D820 D531 Precision M65 M4300 CF623 All Futurebatt Products are CE-/RoHS-/FCC- Certified and Built-in circuit protection ensure both safety and stability; Strict guidelines for compatibility, and standards compliance for environmental safety 100% Brand New from Manufacturer; Rechargeable Up to 600 times over life of battery; Equipped with Higher Quality Cells yet has Same Size & Shape as an OEM Battery