XW-120V120A Battery Pack Charge and Discharge Aging Cycle Machine

The battery charge and discharge aging machine is an essential testing equipment primarily used for conducting charge and discharge cycle tests and aging treatments on batteries to evaluate their charge and discharge curves, capacity, durability, and safety.

The battery charge and discharge aging machine simulates the actual charge and discharge conditions of batteries and conducts long-term cycle tests. During the testing process, the equipment precisely controls parameters such as voltage, current, and temperature to mimic complex operating conditions in real-world applications. Simultaneously, the equipment continuously records various parameters and data, including voltage, current, temperature, and capacity, which are used to generate battery aging curves and performance reports.

Upper computer: The upper computer software serves as the primary human-machine interaction tool, enabling functions such as device startup, shutdown, pause, and sequencing through the upper computer; the data of battery aging is primarily collected, processed, and output by the upper computer to provide customers with the required test results.
Middle computer: The middle computer is the central control management software for the device, executing calculations for the parameters of battery test such as capacity and electric quantity.
Bi-directional AC/DC + LLC isolated DC/DC: During charge, this functional module draws power from the power grid, regulates it through the bi-directional DC/DC, and charges the battery; during discharge, the functional module feeds the energy transferred from the bi-directional DC/DC back to the power grid.
Bi-directional DC/DC (Buck/Boost): This functional module is a non-isolated DC/DC, capable of outputting the current and voltage values required for battery charge and discharge, thereby executing constant current charge, constant voltage charge, and constant current discharge.

◆ Employing high-frequency isolating mode, the complete system is isolated from the power grid, guaranteeing safe and stable system operation;
◆ The bi-directional AC/DC module utilizes space vector modulation technology and digital control, resulting in high voltage utilization and minimal current harmonic splitting;
◆ The internal conversion of dual-channel charge and discharge energy is achievable;
◆ The DC/DC module adopts advanced PID regulation technology and multiple protection mechanisms, guaranteeing the operation stability of the device;
◆ Energy feedback (efficiency of DC bus ≥ 92%): The energy-feedback type allows discharged battery energy to be returned to the power grid;
◆ The constant current and constant voltage mode switches seamlessly with no voltage or current impact, effectively preventing heat concentration of batteries caused by peak current, which can lead to battery tab delamination;
◆ Voltage and current sampling employs a four-wire system, guaranteeing high voltage sampling accuracy and long-term stability;
◆ The single-channel system possesses independent operation capabilities and supports multi-channel parallel output;
◆ The device supports barcode input for batteries and enables traceability of historical test data.

Main Interface

Each channel is independently controlled, with independent editing of processes of each channel. Channel status can be quickly identified by the background color of the upper computer interface.

Step Setting Interface

Users can customize the content of the X-axis and Y-axis for data comparison analysis, supporting up to four curve data simultaneously.
After well selecting the curve content, the corresponding color can be configured in the list. The curve can be freely zoomed and moved, and double-clicking data in the data table will map it to a data point on the curve.

Detailed Record

Data and curve processing: The system can directly export data to CSV and EXCEL, and save curves as images directly. Furthermore, users can customize the display items of the list based on their needs, including cycle data, process data, and detailed data, as well as customize the name of export file.