System and method for information handling system battery charge protection and fault alarm

Patent metadata

Field	Value
Publication number	US-9178368-B2
Application number	US-201314043001-A
Country	US
Kind code	B2
Filing date	Oct 1, 2013
Priority date	Aug 24, 2007
Publication date	Nov 3, 2015
Grant date	Nov 3, 2015

Abstract

An information handling system battery has first and second protective circuits to detect and address faults for a first charge applied from an external power source to an integrated charger and a second charge applied from a charger of an information handling system to battery cells. If the first protective circuit detects a fault associated with the integrated charger, charging of the battery cells is still supported by inserting the battery in an information handling system. If the second protective circuit detects a fault, the battery becomes inoperative by disconnecting the battery cells. An indicator, such as LEDs on the battery casing, indicates whether a soft or hard fault has occurred.

First claim

What is claimed is:

1. An information handling system comprising:
a housing;
processing components disposed in the housing and operable to process information; and
a battery coupled to the housing, the battery having an integrated charger operable to accept power from an external power source, one or more cells operable to store power, a first integrated protection circuit associated with the integrated charger and operable to monitor power provided from the external power sou…

Assignees

• Dell Products Lp

Inventors

• Wang Ligong
• Courtney Jr Gerald
• Ma Yin-Cheung

Classifications

• H02J4/25

  Electricity · mapped topic

• H02J7/663 Primary

  Electricity · mapped topic

• H01M10/488

  Electricity · mapped topic

• H01M10/48

  Electricity · mapped topic

• H02J7/02

  Electricity · mapped topic