A multiple battery charger comprising: - an input unit (10; 10a) configured to receive or block power from a power supply unit, wherein the input unit (10; 10a) includes at least one first switch (SP 1); - an output unit (40; 40a) including a plurality of output terminals, wherein the plurality of output terminals are connected to the input unit (10; 10a) via a transformer (20; 20a) and a plurality of second switches (SS 1, SS 2,..., SS n) and the output unit is adapted to charge a plurality of batteries, and wherein each of the plurality of output terminals is connected to at least one of the plurality of second switches (SS 1,SS 2,....,SS n) for a selective receipt of the power from the input unit (10; 10a) and the plurality of second switches (SS 1,SS 2,....,SS n) are configured to be controlled in a time division multiplex control manner by using a pulse width modulation, PWM, signal; - characterized in that the multiple battery charger further comprises a control circuit, which includes a feedback circuit unit (230; 230a) and a switching control unit (260; 260a); wherein the feedback circuit unit (230; 230a) includes a voltage control unit and a current control unit, wherein for each output, a feedback signal is generated by means of the voltage control unit and the current control unit, wherein the voltage control unit is configured to detect a voltage (V 01, V 02) output from an output terminal and to detect an error between the detected voltage (V 01, V 02) and a corresponding reference voltage (V* 01, V* 02), and the voltage control unit includes a PI controller configured to amplify said error and to output a current for adjusting the error of the voltage, and wherein the current control unit is configured to receive said current output from the voltage control unit through a current limiter, and the current control unit is configured to detect an error by comparing a reference current (I* 01, I* 02) output from the current limiter and a detected current (I 01, I 02) from said output terminal, and a PI controller of the current control unit is configured to receive the error and to output said feedback a signal to a positive terminal of a comparator of the switching control unit (260; 260a) so as to generate the PWM signal according to the detected error; and wherein the switching control unit (260; 260a) is configured to transmit the PWM signal to the input unit (10; 10a) and to the output unit (40; 40a) so as to provide independent control of power applied to each one of the plurality of batteries and to independently compensate for the power on a corresponding output terminal; wherein the switching control unit (260; 260a) is configured to synchronize the at least one first switch (SP 1) and the plurality of second switches (SS 1,SS 2,....,SS n); and wherein the switching control unit (260; 260a) is configured to operate the at least one first switch (SP 1) at a frequency fs, and when there are n second switches (SS 1,SS 2,....,SS n), operate each second switch (SS 1,SS 2,....,SS n) at a frequency fs/n in the time division multiplex control manner and control power of each one of the output terminals connected to the plurality of second switches (SS 1,SS 2,....,SS n) according to the PWM signal. - an input unit (10; 10a) configured to receive or block power from a power supply unit, wherein the input unit (10; 10a) includes at least one first switch (SP 1); - an output unit (40; 40a) including a plurality of output terminals, wherein the plurality of output terminals are connected to the input unit (10; 10a) via a transformer (20; 20a) and a plurality of second switches (SS 1, SS 2,..., SS n) and the output unit is adapted to charge a plurality of batteries, and wherein each of the plurality of output terminals is connected to at least one of the plurality of second switches (SS 1,SS 2,....,SS n) for a selective receipt of the power from the input unit (10; 10a) and the plurality of second switches (SS 1,SS 2,....,SS n) are configured to be controlled in a time division multiplex control manner by using a pulse width modulation, PWM, signal; - characterized in that the multiple battery charger further comprises a control circuit, which includes a feedback circuit unit (230; 230a) and a switching control unit (260; 260a);