High-Precision Battery Charge Discharge Test Systems for EV Manufacturers

AC input parameters

Input power supply

AC 380V±10% 50/60±5Hz

Inputimpedance

≥1MΩ

Power factor

≥99%（Full load）

Feedback efficiency （MAX）

≥90%（Full load）

THDI

≤5%（Full load）

DC output parameters

voltage precision

±0.05%FS

Electric current precision

±0.05%FS

voltage Resolution

1mV

Current Resolution

1mA

Current response time

10ms（10%FS ～ 90%FS)

Auxiliary channel type

NTC

Charge and discharge conversion time

20ms（-90%FS ～ 90%FS）

Channel control mode

All channels can be controlled independently

Step function characteristics

Minimum data recording time

10ms

Cycle number

65535

Number of work steps

2000

Loop nesting

5

Support experimental esting

Battery cycle life test、Battery pack capacity test、Battery charge/discharge characteristic test、Charge retention test of battery pack、Charge and discharge efficiency test of battery pack、Charge and discharge efficiency test of battery pack

Charge and discharge mode

Static, pause, constant current charging CC, constant voltage charging CV, constant resistance charging CR, constant current and constant Voltage charging CCCV, constant power charging CP, constant current discharge DC, constant power discharge DP, constant resistance discharge DR, DC Internal Resistance Test (DCIR)

Cut-off condition

Voltage, current, capacity, energy, time, power, number of cycles, BMS parameters, custom advanced parameters (support one or more logic and or combination)

Execution action type

Jump, pause, protect, Next

485/DBC File import

Supports file editing, saving, and importing

DcInternal Resistance Test (DCIR)

SupportDCIRwork step,hardwarereal-imecalculation,supportgraphic twokindsoftesting

Data export mode

Export in Excel or CSV format

Protection function

AC side protection

Powergridvoltage over/under、voltageprotection,surge、protection,anti-island protection, over and under frequencyprotection,hardware over temperature protection, self-detection protection, etc

DC side protection

under voltage protection, hardware over temperature protection, battery channel line reverse connection protection

Battery side comprehensive protection

Upper and lower limit protection of the total battery voltage, upper and lower limit protection of the battery voltage, upper and lower limit protection of the battery temperature, upper and lower limit protection of the battery charge and discharge current, upper and lower limit protection of the battery capacity, BMS communication outage protection, network outage protection, etc

Power failure data protection

With memory power off protection function, it can effectively avoid data loss caused by power off or can continue to run at the process break point without modifying the process after the call

Class of protection

IP20

Cooling mode

Forced air cooling

operating temperature range

0℃-45℃

noise

≤80dB