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:
Nov. 14, 1978
Filed:
Sep. 21, 1976
Pierre Godard, Tremblay les Gonesse, FR;
Saft-Societe des Accumulateurs Fixes et de Traction, Romainville, FR;
Abstract
Method and apparatus for charging storage batteries in which the charging rate is varied as a function of temperature are disclosed. The battery temperature and ambient temperature are sensed and compared. When the battery temperature is less than the ambient temperature plus a first temperature difference, a first charging rate is provided; when the battery temperature is greater than the ambient temperature plus the first temperature difference but less than the ambient temperature plus a second temperature difference which is greater than the first temperature difference, an intermediate charging rate is provided which varies with the comparison of the battery and ambient temperatures between the first charging rate and a second charging rate which is less than the first charging rate; and when the battery temperature is greater than the ambient temperature plus the second temperature difference, the second charging voltage is provided. Alternatively, charging may be cut-out instead of proceeding at the second charging rate. The method disclosed herein may advantageously be used to charge all types of storage batteries.