Battery, based power supply device and associated maintenance system

摘要

A portable personal computer (2) makes access to a service handling server (1) set up on the Internet (5), and transmits data from a power source monitor (4). The service handling server (1) identifies a model type of the personal computer (2), refers the received data to a power source information database (22), determines whether good or bad, transmits a reply notifying a determination result when there is no abnormality, and transmits abnormality action information using an e-mail when there is an abnormality.