| 摘要 |
PROBLEM TO BE SOLVED: To provide a power storage device capable of easily handling changes in load voltage.SOLUTION: A constant-closed type contactor 3 of one power storage device A1 is connected to a constant-open type contactor 2 of the other power storage device A2 so that storage batteries 1 of the power storage devices A1 and A2 are connected to each other in series. When a load (not shown) is connected to a connector 6 of the other power storage device A2, the two power storage devices A1 and A2 are connected to each other in series to form a closed circuit with respect to the load, and the power is supplied to the load from the power storage devices A1 and A2. Thus, even when the rated voltage of the load is increased two times, the power is satisfactorily provided from the power storage devices A1 and A2. |
