NCJ Number
14966
Date Published
1973
Length
23 pages
Annotation
REVIEW OF BATTERY TYPES PRESENTLY USED TO POWER PORTABLE POLICE RADIO TRANSCEIVERS AND THOSE NEWLY DEVELOPED TYPES WHICH SEEM SUITABLE FOR SUCH USE.
Abstract
THE NECESSITY FOR ADEQUATE BATTERY STANDARDS, ACCEPTABLE TO BOTH USERS AND MANUFACTURES, IS POINTED OUT AND SOME OF THE CONSIDERATIONS TO BE OBSERVED IN ESTABLISHING SUCH SPECIFICATIONS ARE DISCUSSED. MANY OF THE PROBLEMS EXPERIENCED WITH BATTERY-POWERED RADIOS ARE NOT CAUSED BY INHERENT LIMITATIONS OF THE BATTERIES BUT BY IMPROPER MATCHING OF THE BATTERY WITH THE ELECTRONICS AND THE USE REQUIREMENTS. THE EFFECT OF EQUIPMENT APPLICATION IS DISCUSSED, AND SOME REPRESENTATIVE SYSTEM COST TRADE-OFF ANALYSES ARE PROVIDED TO ILLUSTRATE THE ADVANTAGES OF PROPER SYSTEM PLANNING. A LIST OF AREAS WHEREIN FURTHER STUDY AND ANALYSIS WOULD BE REWARDING IS PROVIDED. THESE AREAS INCLUDE A STUDY OF OPTIMUM POWER SUPPLY VOLTAGE, APPLICATION OF NEW BATTERY TYPES, REDESIGNED BATTERY CHARGERS, DEVELOPMENT OF STATE-OF-CHARGE MEASUREMENT FOR BATTERIES, STUDY OF BATTERY CONNECTOR PROBLEMS, AND A STUDY OF COMMUNICATIONS OPERATIONS TO OPTIMIZE BATTERY EXCHANGE CYCLES. (AUTHOR ABSTRACT)