| 摘要 |
<p>Disclosed is a power supply device that is equipped with a battery mounting unit in which at least three batteries can be mounted and a connection circuit that electrically connects the at least three batteries mounted in the battery mounting unit. The connection circuit is characterized by connecting at least two batteries in parallel and by connecting, in series, the at least one other battery to the at least two batteries that have been connected in parallel. With the power supply device, a large amount of power can be supplied to electrical equipment by connecting the batteries in series, and even more of the power accumulated in the plurality of batteries can be supplied to electrical equipment even if the amount of power remaining in each battery is not substantially the same.</p> |
