This is a Brand New IBM Boxed Original Product.Stay unplugged longer with the help of a spare ThinkPad system battery. Help increase your productivity due to longer system run times. Get the power your need whenever and wherever you need it. This is a 6 Cell Li-Ion Battery. Compatible IBM Models: ThinkPad T40: T40, T40p. ThinkPad T41: T41, T41p. ThinkPad T42: T42, T42p. ThinkPad T43: T43, T43p. ThinkPad R50: R50, R50e, R50p. ThinkPad R51: R51, R51e. ThinkPad R52: R52, R52p. Replaces IBM part #s: 08K8192, 08K8193, 08K8195, 8K8214, 92P1011, 92P1058, 92P1060, 92P1062, 92P1064, 92P1067, 92P1070, 92P1071, 92P1074, 92P1075, 92P1087, 92P1088, 92P1089, 92P1090, 92P1091, 92P1101, 93P5002. Product Specifications: Rating: 10.8V Capacity: 4.8Ah/4800 mAh Size: 8.00" x 2.32" x 0.80" Color: Black Technology: Lit-Ion Condition: Brand New In Stock: Yes