The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2019
Filed:
Sep. 14, 2015
Facebook, Inc., Menlo Park, CA (US);
Soheil Ebrahimzadeh, Menlo Park, CA (US);
Pierluigi Sarti, Milpitas, CA (US);
Facebook, Inc., Menlo Park, CA (US);
Abstract
Several embodiments perform battery backup unit (BBU) degradation testing. For example, a BBU testing system can be coupled to or part of a BBU. The BBU testing system can discharge the BBU by engaging a variable load to the BBU. The BBU testing system can monitor a discharge energy consumption over time as the BBU discharges until the discharge energy consumption reaches a specified amount of energy. The BBU testing system can determine a discharge time for the discharge energy consumption to reach the specified amount of energy. The BBU testing system can then compute a degradation state of the BBU based on the discharge time.