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:
Jul. 16, 1996
Filed:
Aug. 24, 1993
Hitachi, Ltd., Tokyo, JP;
Abstract
A secondary battery control device includes a secondary battery section, a current converting section for converting current inputted or outputted to the secondary battery section from direct current to alternating current or vice versa, and a charge and discharge control section for controlling an input and an output as monitoring the state of the secondary battery section. The secondary battery control device is characterized in that the secondary battery section is arranged to have a main battery, an auxiliary battery connected in parallel to the main battery, an operating section for operating a residual capacity of the main battery by detecting a voltage of the auxiliary battery, and an indicator for indicating the residual capacity outputted from the operating section.