Neware Battery Grading System EV Battery Echelon Utilization Capacity Analyzer
CT-4000 mainly applies for institutions , colleges and universities and EV battery manufacturers .
Most of us are considering the voltage and current accuracies are the all important factors of a battery tester , but actually timing accuracy is of the same importance .
Capacity or energy is calculated on time basis with the voltage and current measured , thus the timing accuracy will greatly affect the capacity calculated . To a general constant current or other constant testing regimes, this effect may not that easy to be observed .
Recycle Battery Function
If you have recovery battery pack , like Toyota Prius battery pack , generally, each piece has 6 single Ni - MH cell , then several pieces batteries assembed in one pack , and you need to check each single cell for capacity , cyclie life , resistance , etc . Then assemble the battery cell after sorting by capacity , resistance . You will get the new battery pack . And last you will test the battery pack to check the real capacity and other function parameter .
Driving Cycle Simulation
Driving cycles are used to simulate car fuel economy at different operating conditions . There are many driving schedules or driving cycles that are issued by various agencies or institutes. To simulate EV , you need to convert the speed output into the power consumption or regeneration of the energy storage device installed on the vehicle .
Simulation - the Way You Look into Reality
You know battery capacity at at constant current , or power , or load . But the reality is that no the energy is drawn by a constant variable . Your capacity or energy tested under constant conditions can only be a general one , and the cycle life tested such regime can also be largely deviated from reality . To have a better master of reality, simulation is introduced . GSM pulse is of such kind for phone batteries . for EV batteries , Drive Cycle Simulation is used .
|resolution||AD 16bit , DA 16bit|
|Input Resistance||More than 1MΩ|
|Channel Features||Constant Current Source and Constant Voltage Source with Independent pairs of Closed - loop Structure|
|Channel Control Mode||Independent Control|
|Voltage||Per Channel Voltage Range||100mV - 20V|
|Discharge Min Voltage||2.5V|
|Accuracy||0.05 percent of FS|
|Stability||0.05 percent of FS|
|Time||Current Response Time||20ms|
|Charge||Charge Mode||CCCharge , CVCharge , CCCVCharge , CPCharge|
|End Conditon||Voltage , Current , Relative Time , Capacity , -deltaV|
|Discharge||Discharge Mode||CCD , CPD , CRD|
|End Condition||Voltage , Current , Relative Time , Capacity|
|Pulse||charge||CCC , CPC|
|Discharge||CCD , CPD|
|Min Pulse Width||500ms|
|Cycle||Loop Measure Range||65535 times|
|Max Steps Per Loop||254|
|Protection||Software Protection||Power - down Data Protection|
|Off - line Testing Function|
|Setting Protection Condition,Setting Parameter - Low Voltage limit , Upper Voltage limit , Low Current limit , Upper Current limit , Delay Time|
|IP protection level||Protection level IP20|
|Voltage and Current Testing Sample||4 - wire connecting|
|Noise||Less than 85dB|
|A Means of Communication of Upper Machine||TCP / IP Protocol|
|Data Output||EXCEL , TXT , Graph|
|Communication Interface||Ethernet Port|
|Per Unit Main Channels No.||2|