Lenoge Brand New Replacement Laptop Battery for Compaq Presario CQ40-215WM CQ50-103NR CQ60-422DX CQ60-228US EV06055 [Li-ion 6-cell 5200mAh] Battery type: Li-ion; Capacity: 5200mAh; Cells: 6-cell; Voltage: 10.8V. Built-in circuit protection ensures both safety and stability 100% New from Pro-Manufacturer CE-/FCC-/RoHS-certified for safety Read the instruction manual to Maximize the battery life