Charger, battery pack charging system and cordless power tool system

A charger for charging a battery pack that is detachably attachable to a cordless power tool, the charger comprising:

• at least one wall that at least partially defines a battery pack receiving space configured to receive and accommodate at least a portion of the battery pack,
• a first guide extending away from the at least one wall,
• a second guide extending away from the at least one wall and spaced from the first guide, and
• a charging output element configured to supply charging current to the battery pack,
• wherein the at least one wall, the first guide and the second guide are configured such that the battery pack will be guided to a prescribed position relative to the at least one wall when the battery pack is inserted into the battery pack receiving space in an insertion direction,
• the charging output element is positioned so as to be proximal to a corresponding charging power input element of the battery pack when the battery pack is disposed in the prescribed position, and
• the first guide and the second guide each include a portion inclined relative to the insertion direction by an angle of inclination such that a distance between the inclined portion of the first guide and the inclined portion of the second guide decreases in the insertion direction.

A charger for charging a battery pack that is detachably attachable to a cordless power tool, the charger comprising:

• at least one wall that at least partially defines a battery pack receiving space configured to receive and accommodate at least a portion of the battery pack,
• a charging output element configured to supply charging current to the battery pack, and
• means for positioning the battery pack at a prescribed position relative to the at least one wall when the battery pack is inserted into the battery pack receiving space in an insertion direction;
• wherein the charging output element is positioned so as to be proximal to a corresponding charging power input element of the battery pack when the battery pack is disposed in the prescribed position.