| CPC B25F 5/00 (2013.01) [H02J 7/0044 (2013.01); H02J 7/0045 (2013.01); H01M 10/4257 (2013.01); H02J 7/00 (2013.01); H02J 7/342 (2020.01); H02J 2207/40 (2020.01)] | 20 Claims | 

| 
               1. A battery pack charger comprising: 
            a housing including a support portion configured to receive a battery pack; 
                a universal serial bus (“USB”) input port connectable to a USB cable for receiving power; 
                a charging terminal electrically connectable to a terminal of the battery pack; 
                a battery charging portion operable to receive power from the USB input port and to output a charging current to the charging terminal to charge the battery pack; 
                a USB output port connectable to a powered device for supplying output power to the powered device; 
                an electronic controller configured to control the charging current and the output power; and 
                a light emitting diode (“LED”) assembly including a plurality of LEDs, the plurality of LEDs configured to display a charging indication of the battery pack. 
               |