A motored vehicle comprising: a plurality of chargeable power storage devices ( 6-1, 6-2); a motor using electric power received from said plurality of power storage devices ( 6-1, 6-2) to generate driving power for the vehicle; an electric power receiving unit ( ACL1, ACL2, 38, 40) receiving electric power from a power supply external to the vehicle for charging said plurality of power storage devices ( 6-1, 6-2); a voltage conversion device ( MG1, MG2, 30-1, 30-2, 8-1, 8-2) connected to said electric power receiving unit ( ACL1, ACL2, 38, 40) and said plurality of power storage devices ( 6-1, 6-2), and configured to convert in voltage the electric power that said electric power receiving unit ( ACL1, ACL2, 38, 40) receives and output the converted electric power to said plurality of power storage devices ( 6-1, 6-2), characterized in that said voltage conversion device ( MG1, MG2, 30-1, 30-2, 8-1, 8-2) is configured to also allow said plurality of power storage devices ( 6-1, 6-2) to communicate electric power therebetween; and the motored vehicle further comprising a control device ( 2, 2A, 2B) controlling said voltage conversion device ( MG1, MG2, 30-1, 30-2, 8-1, 8-2) to allow said plurality of power storage devices ( 6-1, 6-2) to communicate electric power therebetween when said plurality of power storage devices ( 6-1, 6-2) are charged from said power supply, said control device ( 2, 2A, 2B) including an electric power control value generation unit generating a charging electric power control value indicating a target value for an electric power charged from said power supply to said plurality of power storage devices ( 6-1, 6-2) when said plurality of power storage devices ( 6-1, 6-2) are charged from said power supply, a unit generating a temperature increasing electric power control value based on a temperature of one of said plurality of power storage device to allow at least two of said plurality of power storage devices ( 6-1, 6-2) to communicate electric power therebetween through an electric power line (MPL,MNL) for increasing temperature, and a signal generation unit ( 68, 70) generating a drive signal for driving a plurality of second conversion units ( 8-1, 8-2), being part of said voltage conversion device ( MG1, MG2, 30-1, 30-2, 8-1, 8-2), based on said charging electric power control value and said temperature increasing electric power control value. a plurality of chargeable power storage devices ( 6-1, 6-2); a motor using electric power received from said plurality of power storage devices ( 6-1, 6-2) to generate driving power for the vehicle; an electric power receiving unit ( ACL1, ACL2, 38, 40) receiving electric power from a power supply external to the vehicle for charging said plurality of power storage devices ( 6-1, 6-2); a voltage conversion device ( MG1, MG2, 30-1, 30-2, 8-1, 8-2) connected to said electric power receiving unit ( ACL1, ACL2, 38, 40) and said plurality of power storage devices ( 6-1, 6-2), and configured to convert in voltage the electric power that said electric power receiving unit ( ACL1, ACL2, 38, 40) receives and output the converted electric power to said plurality of power storage devices ( 6-1, 6-2), characterized in that said voltage conversion device ( MG1, MG2, 30-1, 30-2, 8-1, 8-2) is configured to also allow said plurality of power storage devices ( 6-1, 6-2) to communicate electric power therebetween; and the motored vehicle further comprising a control device ( 2, 2A, 2B) controlling said voltage conversion device ( MG1, MG2, 30-1, 30-2, 8-1, 8-2) to allow said plurality of power storage devices ( 6-1, 6-2) to communicate electric power therebetween when said plurality of power storage devices ( 6-1, 6-2) are charged from said power supply, said control device ( 2, 2A, 2B) including an electric power control value generation unit generating a charging electric power control value indicating a target value for an electric power charged from said power supply to said plurality of power storage devices ( 6-1, 6-2) when said plurality of power storage devices ( 6-1, 6-2) are charged from said power supply, a unit generating a temperature increasing electric power control value based on a temperature of one of said plurality of power storage device to allow at least two of said plurality of power storage devices ( 6-1, 6-2) to communicate electric power therebetween through an electric power line (MPL,MNL) for increasing temperature, and a signal generation unit ( 68, 70) generating a drive signal for driving a plurality of second conversion units ( 8-1, 8-2), being part of said voltage conversion device ( MG1, MG2, 30-1, 30-2, 8-1, 8-2), based on said charging electric power control value and said temperature increasing electric power control value.