A charging device that is configured to charge a storage battery placed on a placement stand, the device comprising: a connector that protrudes in a first direction from a placement surface of the placement stand and that is configured to electrically connect to a terminal of the storage battery placed on the placement stand; a protective plate disposed in a first position, the first position located further in the first direction than the connector; and a wall surface (212, 213, 214) extending in the first direction and a second direction substantially orthogonal to the first direction; characterized by further comprising: a support member capable of moving to be in a first orientation and a second orientation, the support member configured to support the protective plate in the first position when in the first orientation and to not support the protective plate when in the second orientation; and a lock mechanism that is configured to lock the support member in the first orientation, wherein the lock mechanism includes a first protruding part that, when the support member is locked, is disposed in a first protruding position protruding from the wall surface (212, 213, 214) and that is configured to release locking of the support member by being pushed from the first protruding position to a second protruding position closer to the wall surface (212, 213, 214) than the first protruding position, the support member (i) includes a second protruding part disposed in a different position from the first protruding part in the second direction and protruding by an amount smaller than a distance from the wall surface (212, 213, 214) to the second protruding position, and (ii) is configured to move from the first orientation to the second orientation by the second protruding part being pushed toward the wall surface (212, 213, 214) in a state where the locking by the lock mechanism is released, and when the support member has moved to the second orientation, the protective plate is capable of moving to a second position closer to the placement stand than a first direction-side end part of the connector. a connector that protrudes in a first direction from a placement surface of the placement stand and that is configured to electrically connect to a terminal of the storage battery placed on the placement stand; a protective plate disposed in a first position, the first position located further in the first direction than the connector; and a wall surface (212, 213, 214) extending in the first direction and a second direction substantially orthogonal to the first direction; characterized by further comprising: a support member capable of moving to be in a first orientation and a second orientation, the support member configured to support the protective plate in the first position when in the first orientation and to not support the protective plate when in the second orientation; and a lock mechanism that is configured to lock the support member in the first orientation, wherein the lock mechanism includes a first protruding part that, when the support member is locked, is disposed in a first protruding position protruding from the wall surface (212, 213, 214) and that is configured to release locking of the support member by being pushed from the first protruding position to a second protruding position closer to the wall surface (212, 213, 214) than the first protruding position, the support member (i) includes a second protruding part disposed in a different position from the first protruding part in the second direction and protruding by an amount smaller than a distance from the wall surface (212, 213, 214) to the second protruding position, and (ii) is configured to move from the first orientation to the second orientation by the second protruding part being pushed toward the wall surface (212, 213, 214) in a state where the locking by the lock mechanism is released, and when the support member has moved to the second orientation, the protective plate is capable of moving to a second position closer to the placement stand than a first direction-side end part of the connector. a support member capable of moving to be in a first orientation and a second orientation, the support member configured to support the protective plate in the first position when in the first orientation and to not support the protective plate when in the second orientation; and a lock mechanism that is configured to lock the support member in the first orientation, wherein the lock mechanism includes a first protruding part that, when the support member is locked, is disposed in a first protruding position protruding from the wall surface (212, 213, 214) and that is configured to release locking of the support member by being pushed from the first protruding position to a second protruding position closer to the wall surface (212, 213, 214) than the first protruding position, the support member (i) includes a second protruding part disposed in a different position from the first protruding part in the second direction and protruding by an amount smaller than a distance from the wall surface (212, 213, 214) to the second protruding position, and (ii) is configured to move from the first orientation to the second orientation by the second protruding part being pushed toward the wall surface (212, 213, 214) in a state where the locking by the lock mechanism is released, and when the support member has moved to the second orientation, the protective plate is capable of moving to a second position closer to the placement stand than a first direction-side end part of the connector.