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.

Date of Patent:
Jan. 05, 2016

Filed:

Jun. 12, 2012
Applicants:

Kazunori Watanabe, Sao Paulo, BR;

Koji Asakawa, Shiga, JP;

Inventors:

Kazunori Watanabe, Sao Paulo, BR;

Koji Asakawa, Shiga, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/16 (2006.01); H02J 7/00 (2006.01); H02J 7/04 (2006.01); H01M 10/44 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0029 (2013.01); H01M 10/448 (2013.01); H02J 7/007 (2013.01); H02J 7/04 (2013.01); H01M 2220/30 (2013.01); H02J 2007/0037 (2013.01);
Abstract

The charging current value in the first trickle charge after the rapid charge is differentiated from the charging current value in the second and subsequent trickle charge. Thus, for example, in the first trickle charge, charging can be performed with the charging current value required to simultaneously activate and charge an inactive battery. In the second and subsequent trickle charge, charging can be performed with the charging current value required to compensate for self-discharge of a rechargeable battery. By charging the battery with the charging current value required to compensate for self-discharge of the battery in the second and subsequent trickle charge, power consumption required to charge the battery can be reduced, compared to the case where the trickle charge is continued with a constant charging current value required to simultaneously activate and charge the inactive battery, as the conventional device.


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