LB1 High Performance Laptop / Notebook Battery Replacement for HP VK04 (2200mAh) - 4 Cell Battery Type: Li-ion; Capacity: 2200mAh/33Wh; Cells:4-cell; Voltage: 14.8 V Premium Grade A cells ensures peak performance and reliability. Operation time depends on the capacity of the battery, laptop settings, power consumption of equipment, and how you use it. CE-/RoHS-/FCC- Certified and Built-in circuit protection ensure both safety and stability. Live Support Mon-Fri 4am-8pm PST | Sat-Sun 8am-5pm PST | 18 Months Hassle-Free Warranty.