ELECTRIC TOOL AND BATTERY PACK

Provided are an electric tool and a battery pack, both of which may contribute to increasing the degree of handiness of the electric tool. An electric tool (1) includes a body portion (10), a grip portion (20), and a battery pack (30). The body portion (10) includes: a tool attachment member (11) to which a tool (40) is attached; a driving unit (12) to drive the tool (40); and a transmission unit (13) to transmit driving force of the driving unit (12) to the tool (40). The grip portion (20) is provided for the body portion (10) and includes a gripping part (21) designed to be held by a user (100) with his or her hand. At least part of the battery pack (30) is provided at one end portion (202), located opposite from the body portion (10), of the grip portion (20). The battery pack (30) supplies power to the driving unit (12). The battery pack (30) includes: a connection terminal portion (33) to be electrically connected to the driving unit (12) when the battery pack (30) is attached to the grip portion (20); and a power storage unit (36). The power storage unit (36) includes an all-solid-state battery (35) electrically connected to the connection terminal portion (33).