CHARGER FOR PORTABLE BATTERY

This charger for a portable battery is a charger (1) for a portable battery used in an electric vehicle including a tray (2) in which a battery (100) is placed. The tray (2) has a bottom surface portion (10) which is formed in a length direction (V1) of the battery (100) in a state of being placed in the charger (1), and side surface portions (12) which rise from the bottom surface portion (10) in a height direction (V2) of the battery (100) in a state of being placed in the charger (1) and face side surfaces of the battery (100) in a width direction (V3). The charger (1) further includes an upper cover (3) which covers a portion of the bottom surface portion (10) and the side surface portions (12) from above.