The ThinkPad Reserve Edition 8 cell Li-Ion battery (41U5259) is a rechargeable, high capacity replacement part for the ThinkPad Reserve Edition system. The ThinkPad Reserve Edition 8 cell Li-Ion battery features:

• Lithium-Ion technology
• Eight-cell, rechargeable system battery
• Output Voltage: 14.4 V dc
• Battery Performance amp-hours: 4.6 Ah
• 7.0 hours average battery life
• Standard system battery specifications
• Over-discharge protection

Note: Battery life and recharge times will vary based on many factors including screen brightness, applications, features, power management, battery conditioning, and other customer preferences. These model numbers achieved Battery Rundown Time of at least the time shown during testing. A description of the testing is available here.

• Approximate height: 21 mm (0.81 in)
• Approximate width: 279 mm (11.01 in)
• Approximate depth: 91 mm (3.59 in)
• Weight: 428 g (0.94 lb)

1 year – Customer Replacement Unit (CRU) Service

• Aailability date: 10 Jul 2007 (Worldwide)
• Discontinued, withdrawn from marketing: October 2009

• Battery
• Publications