Lithium Battery charge and discharge test system was developed by DWEV Power used in a computer-controlled products. Software design adopts large data dealing methods, controlling bidirectional power supply with PC to realize automatic charge and discharge function for bi-dc power supply and battery test instead of manual record data.
Good flexibility for the extension of the power battery test, facilitating to expand and adjust for system in need.
Various standard dynamic test procedures to meet the needs of battery testing.
Up to 225 steps to provide users with a wide range of functions.
Flexible test program, variables and programming to achieve a variety of combinations of test programs,simulating a variety of operating conditions of the car.
Providing charging and discharging efficiency, capacity decay rate, current - voltage characteristics curves,
EXCEL document to save and print
With emergency switch. Power off automatically shut down, automatic load connection and disconnection.
|Channels||one channel,bidirectional control,PC software can be customized and communicate with BMS|
|Functions||1. Battery Cycle Life Test|
|2.Battery capacity test|
|3. Battery charge / discharge test|
|4.Battery charge retention test|
|5. Battery Charge / Discharge Efficiency Test|
|6. Battery Overcharge / Overdischarge Rate Tolerance Test ,Supporting CAN communication with BMS|
|AC input interface||1. Input three-phase four-wire AC380V +/- 10%|
|2. Input maximum power 175KW|
|3. Maximum inverter power 120KW|
|4. Frequency 50Hz|
|6. Power factor|
|7. Charging efficiency 93%|
|8. Feedback efficiency 93%|
|Voltage accuracy||±0.1% of F.S±0.1% of F.D|
|Charge efficiency||≥94%（full load）|
|Feed back efficiency||≥93%（full load）|
|Channels current range||0.1A|
|Current accuracy||±0.1% of F.S±0.1% of F.D|
|Channels power range||1 channel:1500W~±150KW|
|Current response time||current hardware response time|
|time set range||1000mins/step|
|Voltage and current detect sampling||4 wires connecting|
|Data record||voltage、current, time difference|
|Data record frequency||100ms|
|Charge mode||CC, CV,CP.|
|Charge deadline||Bus-line voltage，current，time，capacity，Auxiliary voltage|
|Discharge deadline||Bus-line voltage，current，time，capacity，Auxiliary voltage|
|Protections||power-down, data recovery, software OVP, OUP, software OCP, UCP, auxiliary temperature, auxiliary voltage, set voltage and current, channel protection can be displayed in the list|
|Single cycle step||255 steps, with inserted function|
|Single channel cycle times||65535|
|Software||Binary file records, voltage, current, time, capacity, temperature, energy, etc.,corresponding curves can be saved as EXCEL or txt files, providing constant current, constant voltage, rest, trip,Loop, loop insert, "goto" and other functions|