A to-be-charged device , comprising: at least two receiving branches , a charging control module and a battery , wherein each receiving branch of the at least two receiving branches is connected to the charging control module and the battery ; each receiving branch is configured to couple to one transmitting branch of a wireless charging device to receive an electromagnetic signal transmitted by the coupled transmitting branch and configured to convert the received electromagnetic signal into a charging voltage and a charging current for charging the battery of the to-be-charged device ; characterized in that , the charging control module is configured to generate feedback information based on at least one of charging parameters and provide the feedback information to the wireless charging device , wherein the charging parameters comprise: a charging voltage of the battery , a charging current of the battery , a voltage of each receiving branch and a current of each receiving branch ; and the feedback information is configured to instruct the wireless charging device to adjust a transmitting power of the electromagnetic signal of each transmitting branch , the charging control module is further configured to: control the at least two receiving branches to operate simultaneously in response to the battery being in the constant-current charging phase; and control, when the battery is in a non-constant-current charging phase, one receiving branch of the at least two receiving branches to operate, and the remaining receiving branch of the at least two receiving branches other than the one receiving branch to stop operate. wherein each receiving branch of the at least two receiving branches is connected to the charging control module and the battery ; each receiving branch is configured to couple to one transmitting branch of a wireless charging device to receive an electromagnetic signal transmitted by the coupled transmitting branch and configured to convert the received electromagnetic signal into a charging voltage and a charging current for charging the battery of the to-be-charged device ; characterized in that , the charging control module is configured to generate feedback information based on at least one of charging parameters and provide the feedback information to the wireless charging device , wherein the charging parameters comprise: a charging voltage of the battery , a charging current of the battery , a voltage of each receiving branch and a current of each receiving branch ; and the feedback information is configured to instruct the wireless charging device to adjust a transmitting power of the electromagnetic signal of each transmitting branch , the charging control module is further configured to: control the at least two receiving branches to operate simultaneously in response to the battery being in the constant-current charging phase; and control, when the battery is in a non-constant-current charging phase, one receiving branch of the at least two receiving branches to operate, and the remaining receiving branch of the at least two receiving branches other than the one receiving branch to stop operate. control the at least two receiving branches to operate simultaneously in response to the battery being in the constant-current charging phase; and control, when the battery is in a non-constant-current charging phase, one receiving branch of the at least two receiving branches to operate, and the remaining receiving branch of the at least two receiving branches other than the one receiving branch to stop operate. <EOS>