An electric tool comprising: a body portion including: a tool attachment member to which a tool is attached; a driving unit configured to drive the tool; and a transmission unit configured to transmit driving force of the driving unit to the tool; a grip portion provided for the body portion and including a gripping part designed to be held by a user with his or her hand; and a battery pack, at least part of which is provided at one end portion, located opposite from the body portion, of the grip portion, the battery pack being configured to supply power to the driving unit, the battery pack includes: a connection terminal portion configured to be electrically connected to the driving unit when the battery pack is attached to the grip portion; and the grip portion includes: a first end portion; and a second end portion located opposite from the first end portion with respect to the gripping part and serving as the one end portion, the body portion being connected to the first end portion, the battery pack being attached to the second end portion, characterised in that, a power storage unit including an all-solid-state battery is electrically connected to the connection terminal portion, the battery pack includes a plurality of all-solid-state batteries, each of the plurality of all-solid-state batteries being formed in a sheet shape, the plurality of all-solid-state batteries are being stacked one on top of another, and a direction in which the plurality of all-solid-state batteries are stacked one on top of another is aligned with a line segment that connects together the first end portion and the second end portion, interposing the gripping part, of the grip portion. a body portion including: a tool attachment member to which a tool is attached; a driving unit configured to drive the tool; and a transmission unit configured to transmit driving force of the driving unit to the tool; a grip portion provided for the body portion and including a gripping part designed to be held by a user with his or her hand; and a battery pack, at least part of which is provided at one end portion, located opposite from the body portion, of the grip portion, the battery pack being configured to supply power to the driving unit, the battery pack includes: a connection terminal portion configured to be electrically connected to the driving unit when the battery pack is attached to the grip portion; and the grip portion includes: a first end portion; and a second end portion located opposite from the first end portion with respect to the gripping part and serving as the one end portion, the body portion being connected to the first end portion, the battery pack being attached to the second end portion, characterised in that, a power storage unit including an all-solid-state battery is electrically connected to the connection terminal portion, the battery pack includes a plurality of all-solid-state batteries, each of the plurality of all-solid-state batteries being formed in a sheet shape, the plurality of all-solid-state batteries are being stacked one on top of another, and a direction in which the plurality of all-solid-state batteries are stacked one on top of another is aligned with a line segment that connects together the first end portion and the second end portion, interposing the gripping part, of the grip portion. a connection terminal portion configured to be electrically connected to the driving unit when the battery pack is attached to the grip portion; and the grip portion includes: a first end portion; and a second end portion located opposite from the first end portion with respect to the gripping part and serving as the one end portion, the body portion being connected to the first end portion, the battery pack being attached to the second end portion, characterised in that, a power storage unit including an all-solid-state battery is electrically connected to the connection terminal portion, the battery pack includes a plurality of all-solid-state batteries, each of the plurality of all-solid-state batteries being formed in a sheet shape, the plurality of all-solid-state batteries are being stacked one on top of another, and a direction in which the plurality of all-solid-state batteries are stacked one on top of another is aligned with a line segment that connects together the first end portion and the second end portion, interposing the gripping part, of the grip portion.