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Systems and methods for interfacing a battery-powered information handling system with a battery pack of a physically separable battery-powered input or input/output device

  • US 7,436,149 B2
  • Filed: 09/26/2006
  • Issued: 10/14/2008
  • Est. Priority Date: 09/26/2006
  • Status: Active Grant
First Claim
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1. A battery-powered information handling system, comprising:

  • a system load;

    a charger regulator that is configured to produce charge current from a current supply, said current supply comprising alternating current or direct current from an AC adapter; and

    battery and charging circuitry coupled to said charger regulator and configured to provide said charge current to a first battery pack that is a main system battery pack of said battery powered information handling system;

    wherein said battery and charging circuitry of said battery-powered information handling system is further configured to be coupled to a second battery pack that is a battery pack of a physically separable battery-powered input or input/output device to allow at least one of;

    a flow of said charge current produced by said charge regulator from said battery and charging circuitry to charge said second battery pack of said physically separable battery-powered input or input/output device, ora flow of discharge current from said second battery pack of said physically separable battery-powered input or input/output device to power said system load of said battery-powered information handling system, ora combination thereof.

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