ThinkPad T40 Series High Capacity Li-Ion Battery -

Item#:  YYS2-4105699  | Model#: 92P1077

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Product Details

Provides up to one-third more capacity than the standard system battery. This high-capacity battery has an extended area on the back edge and fits in the standard ThinkPad T40/R50 system battery slot. It can be used even when the notebook is connected to the ThinkPad Dock II, Mini-Dock or Port Replicator II. It can be recharged with the optional ThinkPad Multiple Battery Charger II. All-day unplugged computing is possible (up to eight hours on select T40/R50 systems) when the ThinkPad T40/R50 Series 9-Cell Li-Ion Battery is combined with the optional ThinkPad Ultrabay Slim Li-Polymer Battery. Battery life (and also recharge time) will vary depending upon screen brightness, applications used, features installed, power management settings, battery condition and other customer preferences.


   Device Type:  Notebook battery

   Quantity:  1
   Technology:  9-cell lithium ion
   Voltage Provided:  10.8 V
   Capacity:  7.2 Ah
   Run Time (Up To):  6 hrs

   Compliant Standards:  C-Tick, cUL, UL 1950

Environmental Parameters
   Min Operating Temperature:  41 °F
   Max Operating Temperature:  95 °F
   Humidity Range Operating:  8 - 80%

Dimensions & Weight
   Width:  8.9 in
   Depth:  3.2 in
   Height:  0.8 in
   Weight:  16.93 oz

Compatibility Information
   Designed For:  ThinkPad R51e ¦ 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

Additional Resources: Product Manuals

  • Manufactured by: Lenovo
    Warranty provided by: Lenovo
    UPC No:
    Mfg Part No: 92P1077
  • Box Size: ( Length:0, Width:0, Depth:0)
    Shipping Weight: 1.0000 pound(s)
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