Stay unplugged longer with the help of a spare or replacement Think Pad system battery. Get more the twice the capacity of the 4 cell system battery (select models) or carry an extra to extend your unplugged computing time Its compatible design allows it to be in the system when the system is connected to Think Pad X200 Ultra Base. Compatible with Lenovo Think Pad X200; X200s; X200si; X201; X201i; X201s Features Lithium-Ion (Li-Ion) technology Capacity: 7800 m Ah 9-cell, rechargeable system battery, 10.8 V DC, 7.8 Ah Standard system battery specifications Over-discharge protection One year Customer Replaceable Unit
Dimensions 23.1cm (W) 7.85cm (D) 2.0cm (H) Weight 0.5kg