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DYNAMIC RADIO LOW VOLTAGE BATTERY THRESHOLD AND CHARGER RADIO ON/OFF RECOGNITION SCHEME

IP.com Disclosure Number: IPCOM000007783D
Original Publication Date: 1996-Aug-01
Included in the Prior Art Database: 2002-Apr-23
Document File: 2 page(s) / 122K

Publishing Venue

Motorola

Related People

Authors:
Joseph PatiƱo Patrick Koskan Thomas Fitzgibbons Kevin Mayginnes

Abstract

Today's radios are not able to determine the chemistry type battery connected and as such can not adjust the radio low voltage threshold indicator accordingly. This is especially a problem with new chemistry types such as Li Ion which have a lower and flatter discharge curve than NiCad. The use of the existing NiCad low voltage threshold for a Li Ion battery will cause the radio to prematurely indi- cate low battery. Hence a need exists to allow the radio to dynamically adjust the low voltage thresh- old corresponding to chemistry battery type.