THIS IS A BRAND NEW IBM ORIGINAL SEALED AND BOXED GENUINE PRODUCT. The ThinkPad Ultrabay 2000 Li-Ion Battery is a rechargeable battery which can be used in addition to your primary system battery; adding this battery to your system maximizes your "unplugged" usage time. - 9 cells Li-Ion - Output of 10.8V - can be recharged in 2.0 to 5.0 hours depending on the ThinkPad system usage.- Requires the ThinkPad UltraBase X3 Media Slice. Not compatible with the ThinkPad R40e, ThinkPad A21e or ThinkPad A22e Compatible IBM Models: Ultrabay: 2000. ThinkPad X Series: X31, X30. ThinkPad T Series: T20, T21, T22, T23, T30. ThinkPad A Series: A20, A21, A22, A30, A31. Replaces part #s: 02K6646, 02K6645, 02K6817, 02K6819. Product Specifications: Rating: 10.8V Capacity: 3.6AHr Color: Black Technology: Lit-Ion Condition: Brand New In Stock: Yes

This is a Brand New 6 Cell 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. Compatible ThinkPad Models: ThinkPad: T20, T21, T22, T23. Machine Types: 2647, 2648. Replaces IBM part #s 02K7028, 02K7027, 02K6620, 02K7032, 08K8026, 02K6621, 02K6626, 02K6627, 02K6649, 02K6857, 02K7025, 02K7026, 02K6858, 02K6859, 02K7029, 02K7030, 02K6644, 02K6645. Product Specifications: Rating 10.8V Capacity: 3600mAh Size: 5.50" x 3.30" x 0.80" Color: Black Technology: Lit-Ion Condition: Brand New