New Replacement Laptop/Notebook Battery for/Compatible with Dell XPS GEN2 M170 M1710 M1720, Precision M90, Inspiron E1705 E1505N [ Li-ion  9-cell 6600mAh Black ] Battery type: Li-ion; Capacity: 7800mAh; Cells: 9-cell; Voltage: 11.1v 100% New from Manufacturer CE-/FCC-/RoHS-Certified for safety Built-in circuit protection ensures both safety and stability Note:As this replacement battery can fit many models and part numbers,the factory can not mark all the compatible part numbers on it,please understand.If you have any problems,pls contact us by the message, we will help you to deal with it timely.