Accession Number : ADD003094

Title :   Device for Determining the State of Charge in Batteries.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : McWilliams,Gerald E

Report Date : 13 Jul 1976

Pagination or Media Count : 6

Abstract : The patent relates to a device for determining the state of charge in batteries. The battery under test is discharged to its maximum capability by controlling the discharge current in a linear manner. The product of the current and battery voltage is recorded until the battery power reaches maximum at the maximum power point. The readings, peak power and the potential of the battery at the peak power, are held on meters by peak read and hold and track and hold circuits, respectively. From the readings obtained the state of charge can be determined by using a calibration curve for the type of battery being tested.

Descriptors :   *Test equipment, *Patents, Electric batteries, Electric charge

Subject Categories : Electrochemical Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE