| 摘要 |
PROBLEM TO BE SOLVED: To prevent the impossibility of driving a cell motor following the power consumption of a battery during mooring in a small boat using an optional instrument such as a fish detector. SOLUTION: A small boat power source device 10 is provided with a generator 11 driven by a propelling engine, a first and second batteries 13 and 15 charged by the generator 11, and a relay circuit 20 attached to a charging line to the second battery and adapted to connected the second battery 15 to the generator 11 only when the first battery is in a charged state. Wirings from the generator 11 and a cell motor 17 are always connected to the first battery 13, and a wire from an optional instrument 19 such as a fish detector, a GPS or the like is always connected to the second battery 15. Thus, while the relay circuit 20 is OFF, the wirings of the second battery and the optional instrument 19 are cut off from the generator 11, the cell motor 17 and the first battery 13. |
