IBM Lenovo 3000 N200 Series Battery 41U5025(14in Wide) 6-Cell Li-Ion 11.1 V DC 4.8AhThe N200 Series (14-inch wide) 6 cell and 9 cell Li-Ion battery options are rechargeable system batteries that can replace the original system battery or be swapped in as spares. The N200 Series (14-inch wide) 6 cell and 9 cell Li-Ion battery options feature:Lithium-Ion technologyStandard system battery specificationsOver-discharge protectionThe N200 Series (14-inch wide) 6 cell Li-Ion battery features:Six-cell, rechargeable system battery, 11.1 V dc, 4.8 Ah2.6 - 4.0 hours average battery life