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16CH Neware Battery Testing System LFP 10C Rate Discharge Equipment
DCIR - Direct Current Internal Resistance
The variation of DCIR has a great influence on battery discharge performance , especially for high power batteries . In general , the better the battery , the lower the internal resistance . Therefore , most battery manufacturers identify DCIR as a key indicator to evaluate battery quality . The method of DCIR measurement is to inject high current into the anodeand cathode of the battery in a short period , and then record the changes of battery voltage and charge / discharge current . To calculate DCIR by Ohm Law , voltage variation is divided by current variation .
Direct current internal resistance of batteries is the r esistance of current flowing through the battery , with the standard unit of measurement called the ohm .The value of DCIR is not fixed , and varies depending on multiple factors , such as battery materials , electrolyte concentration , temperature , and depth of discharge .
Neware battery testers provide good accuracies both for voltage and current . This ensures you get the most reliable data from your tests .
A measurement system can be accurate but not precise , precise but not accurate , neither , or both .
Neware battery testers provide good prrecision meanwhile . To get an overall performance of a measurement system , Measurement system analysis MSA is usually introduced for the study .
Software Feature
1 , Windows-based software interface for easy operation .
2 , Uses standard SQL data - base management .
3 , Real - time monitoring windows and integrated graph / data windows can set various working modes for measuring capacity and cycle life of all types of rechargeable batteries , such as:constant current discharge , constant current charge , constant voltage charge , rest , as well as voltage , current , time , capability , negative voltage slope , and other limit conditions .
4 , The user can define the curve by different types such as voltage - time curve , current - time curve , capacity - voltage curve ,
loop times - charge / discharge capacity curve , loop times - charge / discharge efficiency curve , etc . to make curves be compared both by visually and statistically .
5 , Provide timely instructions , warnings, and intelligent support .
6 , Compliance CE Certified .
Project index | Parameter index | |
---|---|---|
resolution | AD 16bit , DA 16bit | |
Input Resistance | More than 1MΩ | |
Input Power | 11342W | |
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 | 25mV - 5V |
Discharge Min Voltage | 2.5V | |
Accuracy | 0.1 percent of FS | |
Stability | 0.1 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 | |
Automated Switch | Automated swith from charge to discharge for each pulse | |
End Condition | Voltage, Test Time | |
Cycle | Loop Measure Range | 65535 times |
Max Steps Per Loop | 254 | |
Nested Loop | Nested loop Function , Max Support 3 Layers | |
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 | |
A Means of Communication of Upper Machine | TCP / IP Protocol | |
Data Output | EXCEL , TXT , Graph | |
Communication Interface | Ethernet Port | |
Per Unit Main Channels No. | 16 |