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.
MacMall Part #: 145130
Manufacturer Part #: 08K8190
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)
Features 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: Compatible with ThinkPad T40 systems
Note: For use in the Ultrabay Slim in the X4 UltraBase Dock only.
Battery Enclosure Type
Run Time (Up To)
C-Tick, cUL, UL 1950
Service & Support
1 year warranty
Service & Support Details
Limited warranty - replacement - 1 year - carry-in
Min Operating Temperature
Max Operating Temperature
Humidity Range Operating
8 - 80%
0.7 g @ 5-500 Hz (operating)
Dimensions & Weight
ThinkPad T43e ¦ IBM ThinkPad R50 ¦ IBM ThinkPad R50e ¦ IBM ThinkPad R50p ¦ IBM ThinkPad R51 ¦ IBM ThinkPad R52 ¦ IBM ThinkPad T40 ¦ IBM ThinkPad T40p ¦ IBM ThinkPad T41 ¦ IBM ThinkPad T41p ¦ IBM ThinkPad T42 ¦ IBM ThinkPad T42p ¦ IBM ThinkPad T43 ¦ IBM ThinkPad T43p ¦ Lenovo ThinkPad R50 ¦ Lenovo ThinkPad R50e ¦ Lenovo ThinkPad R50p ¦ Lenovo ThinkPad R51 ¦ Lenovo ThinkPad R51e ¦ Lenovo ThinkPad R52 ¦ Lenovo ThinkPad T40 ¦ Lenovo ThinkPad T40p ¦ Lenovo ThinkPad T41 ¦ Lenovo ThinkPad T41p ¦ Lenovo ThinkPad T42 ¦ Lenovo ThinkPad T42p ¦ Lenovo ThinkPad T43 ¦ Lenovo ThinkPad T43p
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