PURPOSE: To attain replacement of a battery without interrupting speech when the battery runs short during speech. ;CONSTITUTION: A connector 5 of a cable 4 connecting to a standby battery 2 is connected to a main body connector connecting to a 1st reverse flow prevention element provided in a main body 8 of a portable mobile radio equipment. After an active battery 7 connecting to a 2nd reverse flow preventing element in the main body 8 is removed from the main body 8, the standby battery 2 is mounted and the cable 4 is removed.;COPYRIGHT: (C)1996,JPO
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