Browse Prior Art Database

Dual Battery Extended Life, Auto-Charge Power Supply

IP.com Disclosure Number: IPCOM000061333D
Original Publication Date: 1986-Jul-01
Included in the Prior Art Database: 2005-Mar-09

Publishing Venue

IBM

Related People

Authors:
Balliet, L Bou-Ghannam, AA [+details]

Abstract

This article describes a system arrangement that permits dual redundant battery operation, optimizes battery life, predicts need for replacement, and extends operating time when primary power is disconnected. Rechargable batteries are candidates for use in portable computers as well as systems that must meet high "availability" requirements. In general, however, the life of batteries including rechargeables, has been considerably less than other electronic components. In computers especially, it is desirable to maximize life, extend service when primary power is removed or interrupted and predict in advance when replacement is required. The system disclosed herein provides these features.