LB1 High Performance New Laptop battery for IBM IdeaPad U350 20028 for Notebook IBM IdeaPad U350 20028 for Computer IBM IdeaPad U350 20028 Battery Type: Li-Ion; Capacity: 4800 mAh/71Whr; Cells: 8 ; Voltage: 14.8 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. Battery for IBM IdeaPad U350 20028