| 摘要 |
A battery pack charging/discharging system and method for an electric tool, and an electric tool. The battery pack charging/discharging system comprises a battery pack (100) and a charging dock (200), wherein a plurality of independently arranged batteries (110) are arranged in the battery pack (100), and both the positive electrode and the negative electrode of each battery are led out; and a parallel circuit (400) for charging the positive electrode and the negative electrode of each battery in parallel is formed in the charging dock (200), and a series circuit (500) for discharging the positive electrode and the negative electrode of each battery in series is formed in an electric tool (300). In the battery pack charging/discharging system, batteries in a battery pack are independently arranged, the batteries are connected in series when large-current discharging is needed, and the batteries are connected in parallel when charging is needed. When the charging voltage of the battery pack needs to be detected, there is no need to arrange a complicated detection circuit or sampling circuit. |
