8CH Neware Battery Test Equipment Reliable and Cost Effective Battery Cycler
Neware battery testers provide good accuracies both for voltage and current . This ensures you get the most reliable data from your tests .
DCIR - Direct Current Internal Resistance
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 .
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 .
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 .
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 .
|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||50mV - 10V|
|Discharge Min Voltage||0V|
|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|
|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|
|Noise||Less than 85dB|
|Communication Interface||Ethernet Port|
|Per Unit Main Channels No.||8|