Go to Amazon Sites : br br CWK? New Replacement Laptop Notebook Battery for Asus Eee PC SL22-900A 900-W072X 900-W047 900-BK039X br br Condition Brand New - Grade A cells br Battery Type Li-ion br Voltage 74 Volt 72 Volt compatible br Capacity 5200mAh Better than 4400mAh br 2 Year Warranty Buy with confidence