5V 400A 16Chs Battery Cell Capacity Grading Testing Machine

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5V 400A 16 Channels Energy-Feedback Prismatic Battery Cell Capacity Grading Testing Machine

This battery charge/discharge testing machine delivers high‑precision multi‑channel charge‑discharge measurement, evaluating key performance parameters including voltage, current, capacity, and related metrics. Based on test results, the system grades batteries accordingly, effectively ensuring cell‑to‑cell capacity consistency.

• Single-point independent control: Each battery has a completely independent constant current and constant voltage source, ensuring stable and shock-free operation. It uses a 2-channel programmable constant current and constant voltage control module.
• The equipment is controlled by an STM32 microcontroller and connected to a computer for operation. It can save all test data and curves, and can also be operated directly through the device's keypad to set the process, complete testing, and perform sorting.
• Real-time monitoring and display of each battery's status. If an abnormality occurs, the channel will stop working and the indicator light will illuminate.
• Features power-off protection; upon power restoration, it can resume the original work process.
• Uses field-effect transistors for power control, suitable for batteries with lower discharge voltages, such as lithium iron phosphate batteries.
• Employs a graphical user interface, which is intuitive and clear. It simultaneously displays data such as voltage, current, time, and capacity for each battery, and can display different colors to indicate corresponding working states and abnormal conditions.
• Powerful software functions and a user-friendly interface.
• Four-wire test interface ensures high measurement accuracy.
• Modular design concept for easy maintenance.

• When the battery is charging, the bidirectional power supply converts AC power into 14V DC power, and the constant current board controls and monitors the battery charging process;
• When the battery is discharging, the process is the reverse of charging. The constant current board first raises the battery voltage to 15V, and then the bidirectional power supply converts the DC power back into AC power, which is fed directly into the factory's AC distribution network, thus achieving energy feedback from the battery discharge.

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