Uninterruptible power supply, battery assembly thereof and charging-discharging method thereof

An uninterruptible power supply for connection between an electronic apparatus and a main power source, the uninterruptible power supply comprising:

• a power module including a battery control unit and at least one cell electrically connected to the battery control unit, the battery control unit controlling charging or discharging of the cell;
• a receptacle connector disposed at the power module and electrically connected to the cell via the battery control unit for the charging or discharging of each of the cells, the receptacle connector including an insertion opening;
• a driving switch disposed corresponding to the receptacle connector and electrically connected to the battery control unit, the battery control unit being driven to disconnect the electrical connection between the battery control unit and the cell when the driving switch is switched on, the driving switch being switched off in a default setting;
• a movable stop arm, one end of the movable stop arm being outside the insertion opening and blocking the same, the movable stop arm being movable toward the driving switch to touch and switch on the driving switch;
• a power wire, one end of the power wire including a plug connector adapted for insertion into the receptacle connector;
• and
• a host computer electrically connected to the electronic apparatus and the main power source, the other end of the power wire being electrically connected to the host computer, the host computer managing electrical power distribution among the main power source, the electronic apparatus, and the power module.

A charging-discharging method of a battery assembly, comprising steps as follows:

• a. providing a power module, a receptacle connector, a driving switch, and a movable stop arm, the power module comprising a battery control unit and at least one cell electrically connected to the battery control unit, the receptacle connector being electrically connected to the cell via the battery control unit, the driving switch being electrically connected to the battery control unit, the driving switch being switched off in a default setting;
• b. detecting an ON-OFF state of the driving switch by means of the battery control unit, and the method proceeding to a step c if it is detected that the driving switch is in the ON state.
• c. disconnecting the electrical connection between the receptacle connector and the cell;
• d. following from the step c, adjusting the voltage state of the cell by means of the battery control unit;
• and
• e. following from the step d, switching the receptacle connector and the cell into the ON state by means of the battery control unit.