Lenovo 3000 N200 9-Cell Li-Ion Battery 41U5026The 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) 9 cell Li-Ion battery features:Nine-cell, rechargeable system battery, 11.1 V dc, 7.2 Ah3.9 - 6.0 hours average battery lifeMain Specification:Li-Ion technologyNine-cell, rechargeable system battery, 11.1 V dc, 7.2 Ah3.9 - 6.0 Hours average battery lifeStandard system battery specificationsOver-discharge protection