| 摘要 |
The present invention addresses the problem of providing a battery system, wherein power consumption of an electric circuit is suppressed, said electric circuit becoming an additional component when a storage battery is in a stand-by state, and charge/discharge efficiency is high. This battery system is characterized in that: a first storage battery group wherein a plurality of storage batteries are connected in series and/or parallel, a second storage battery connected to the high potential side of the storage battery group via a switch, and a battery management device that manages the battery state of the storage battery group are integrated with a housing; the battery management device is supplied with power from the second storage battery; and the second storage battery is supplementarily charged by closing the switch. |
