Patent 9166417 was granted and assigned to Makita on October, 2015 by the United States Patent and Trademark Office.
A charger of the present invention includes a plurality of battery connection parts to which battery packs can be connected to charge, with each battery connection part having an indicator. The indicators can be configured such that when charging is expected to be completed more quickly in a first battery connection part compared to a second battery connection part, the indicator of the first battery connection part is displayed differently from the indicator of the second battery connection part.