The present disclosure relates to an electric storage unit group, a charger, an electronic device, an electric vehicle, a method for charging the electric storage unit group, a method for discharging the electric storage unit group, a method for supplying and receiving power, and a method for determining a charging/discharging route in the electric storage unit group.
In order to meet requirements for high-power, high-capacity devices, a case of utilizing a type of a battery pack (assembled battery) configured by connecting a plurality of rechargeable batteries (single cells) in parallel and connecting a plurality of parallel-connected rechargeable battery groups in series is increasing. Such a battery pack is known from, for example, Japanese Patent Application Laid-Open No. H6-283210. Typically, in such a battery pack, charging power is supplied from one end of the battery pack. Also, a load is connected to the battery pack, and power is supplied to the load.