To efficiently use the power of a battery up to a predetermined lower limit remaining capacity, reaching the charging base point.

The battery charge control device includes a generated power control unit controlling a power generation motor 2, a battery 4 to be charged through the power generated by the power generation motor 2, a remaining capacity detection unit for detecting the remaining capacity of the battery 4, a drive motor 3 connected to vehicle driving wheels 6a, 6b to be driven with the power of the battery 4, a target remaining capacity setting unit for setting the target remaining capacity of the battery 4, and a necessary energy estimation unit for estimating the energy necessary for the vehicle traveling from the present location to the charging base point. The target remaining capacity setting unit sets the target remaining capacity by adding the battery remaining capacity corresponding to the necessary energy estimated by the energy estimating unit necessary for the preset lower limit remaining capacity of the battery 4. The generated power control unit controls the power generation motor 2 so that the remaining capacity of the battery 4 detected by the remaining capacity detection unit becomes the target remaining capacity.

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