| 摘要 |
A portable telephone (1) includes in its body (2), a sub battery (4) contained therein or attached thereto, and a main battery (3a, 3b) is detachably provided on the body (2). Usually, main battery (3a, 3b) is attached to the portable telephone body (2), and power is supplied from the main battery (3a, 3b) to the equipments on the body (2) while the sub battery (4) is charged by the main battery (3a, 3b). When the main battery (3a, 3b) is to be exchanged, power is supplied from the sub battery (4) to the equipments (2) on the body. Therefore, possible trouble encountered at the time of battery exchange in the portable communication equipment can be prevented. <IMAGE> |
