An electronic device includes a charging circuit and a bypass circuit. The charging circuit adapted to charge a battery of the electronic device. The bypass circuit is connected in parallel with the charging circuit. A controller is configured to selectively turn on or turn off the bypass circuit…

A battery charger for charging a detachably attached battery pack by supplying an electric power from an external power source, the battery charger includes a notification unit for notifying a user of a charging operation by turning on or flickering a light-emitting member. The notification unit…