| 摘要 |
PROBLEM TO BE SOLVED: To suppress a decrease in a storage battery capacity due to insufficient charging of the storage battery in a charge controller for charging the storage battery by an output of a solar cell, and to provide a power source system having the same. SOLUTION: The charge controller 1 charges a storage battery 13 by the output of a solar cell panel 11. The controller 1 has the function of opening a charge circuit by a solar cell charging circuit switch 8 when the voltage of the storage battery is raised to a first set voltage (V1 ), re-closing the charge circuit when the voltage of the storage battery is lowered to a second set voltage (V2 ), and continuing charging without opening the charge circuit even if the voltage of the storage battery rises to the set voltage (V1 ) when the charging current of the storage battery is a set current (I1 ) or less. |
