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HP PB991A Li-Ion 6-cell Primary Replacement Battery for the nc4200/nc4400/tc4400

  • 6 Cell Lithium-Ion
  • 4.8 Ah
  • HP Compaq nc4200 Notebook PC
  • HP Compaq nc4400 Notebook PC
  • HP Compaq Tablet PC tc4400
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Extra battery life is essential to optimizing your productivity while in meetings or traveling.

Learn more about the Hewlett-Packard PB991A



General Spec

HP Compaq nc4200 Notebook PC
HP Compaq nc4400 Notebook PC
HP Compaq Tablet PC tc4400
Battery Type
6 Cell Lithium-Ion
Battery Voltage
10.8 V
Battery Capacity
4.8 Ah

Physical spec

4.75" x 2.75" x 0.8"
0.71 lbs.


The Common Travel Battery powers your HP notebook while in the office or on the road. Used in conjunction with your primary battery, this powerful travel battery can more than double your battery life, providing up to 8 hours of battery life without having to plug in or swap out! A second battery is essential to optimizing your productivity when on the road.

Manufacturer Warranty

1 year limited
1 year limited

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

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