| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply device capable of attaining a small installation space and long use of an electronic appliance. SOLUTION: This power supply unit is provided with an AC adapter section 19 connected to a power plug 3, a charging part 26 connected to the AC adapter 19, a battery 33 connected to the charging part 26, a solar battery 36 connected to the battery 33, and a connecting terminal 31 of which the one side is connected to the output side of the battery 33 and of which the other side is connected to the electronic appliance 2. The AC adapter 19, the charging part 26, the battery 33, and the solar battery 36 are disposed inside one box.
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