Oneda New High Performance Laptop Notebook Battery for Lenovo IdeaPad U330, U330 20001, U330 2267, U330A, v350 ; Fits P/N: 55Y2019 L08S6D12 Replacement batteries Pack [6-cell / 4400mAh/49Wh] Brand: Oneda; Battery type: Li-ion; Voltage: 11.1V; Cells: 6-cell; Actual Capacity: 4400mAh/49Wh; Color: Black. Improve the service guarantee, Satisfaction guaranteed and backed by a one year replacement warranty. Oneda new high-quality batteries, 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection. Automatic power cut off at high electric current, voltage or temperature ensures safety and extended battery life. The actual operation time will depend on how much electricity is required by the device and how you use it.