Swap out your optical drive with a second battery to increase your unplugged power supply. The ThinkPad Ultrabay Slim Li-Polymer Battery fits neatly into the Ultrabay Slim bay of the ThinkPad T40. It can be used with the system battery or the optional ThinkPad T40 Series High Capacity Li-Ion Battery for all day computing (up to 8 hours on select systems)*. These model numbers achieved eTesting Labs, Inc's BatteryMark 4.0.1 Battery Rundown Time of at least the time shown. This test was performed without independent verification by eTesting Labs, Inc; eTesting Labs, Inc. makes no representations or warranties as to these test results. BatteryMark is a trademark of Ziff Davis Publishing Holdings Inc., an affiliate of eTesting Labs Inc., in the U.S. and other countries. A description of the environment under which the test was performed is available at http://www.ibm.com/pc/ww/thinkpad/batterylife. Battery life (and recharge times) will vary based on many factors including screen brightness, applications, features, power management, battery conditioning and other customer preferences.
Features & Benefits:
• Operates and recharges in the Ultrabay Slim bay of the ThinkPad system
• Power of a second battery without having to carry around a spare loose battery
• Similar specifications to the standard system battery - Use it in the Ultrabay bay of the ThinkPad system along with your standard system battery to get up to twice the unplugged usage time as the standard system battery alone. Since the battery works in the Ultrabay Slim you don't have to suspend the system to swap out the system battery to use the ThinkPad for an extended period of time.
• Compatible with ThinkPad T40 systems
• Backed by IBM Service and Support
