The invention provides a piece of
charge and discharge test equipment for distributed all-online battery packs. The equipment includes a
battery pack online switching device, an MCU unit, a high-frequency DC /
DC converter, a working power supply circuit, a driving
control circuit, single
voltage detection equipment, a current /
voltage data acquisition circuit, a
remote communication circuit, and a data storage and human-computer interaction circuit. The
battery pack online switching device gates an online
backup battery pack and connects the online
backup battery pack to the two ends of the working power supply circuit, and is further connected in parallel with the high-frequency DC /
DC converter. The MCU unit is connected with the high-frequency DC /
DC converter, the working power supply circuit, the single
voltage detection equipment, the current / voltage
data acquisition circuit, the
remote communication circuit and the data storage and human-computer interaction circuit. The problem that there is hidden danger to the maintenance and test safety in the whole process of offline
discharge operation, power supply and coming back online is solved. The
charge and discharge test equipmenthas the advantages of energy saving, simple and
safe operation, safe online power supply, automatic online charging and
equipotential connection
recovery at the end of test, and the like.