Other

Masahiko Sakoh

Yutaka Matsunaga

Masatoshi Sugiura

Kazuyoshi Horikawa

Tomoo Muramatsu

A charging system includes an electric power tool (,) and a charger (,) having internal rechargeable batteries (,) and a controller (,) for monitoring the charge/discharge level of the batteries (,). The electric power tool (,) additionally includes a pair of charge terminals (,) for carrying current to charge the batteries (,), a temperature terminal (,) for outputting to the charger (,) data on the temperature of the batteries, and a data terminal (,) for outputting to the charger data on the battery charge/discharge level from the controller (,). The charger (,) includes a pair of charge terminals (,), a temperature terminal (,), and a data terminal (,) that are electrically connected to the corresponding tool terminals when the tool (,) is set on the charger for a charge. The charging system indicates the remaining charge level on an indicator unit (,) based on the received data on the battery charge/discharge level and changes the amount of the charging current based on the data on the battery charge/discharge level and the battery temperature data received from the tool (,).

Growing community of inventors

Nishikamo-gun, Japan

Masahiko Sakoh