Cell Charge and Discharge Test System | B2000-EC Series
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Product Information "Cell Charge and Discharge Test System | B2000-EC Series"
Kewell B2000-EC Series
Modular Test System for Charge and Discharge Cycles
Precision battery cell test system for charge and discharge testing
The Kewell B2000-EC Series is a modular battery cell test system designed for precise functional testing and realistic charge and discharge procedures. It serves as a reliable battery measurement solution for test and measurement applications and is ideal for laboratory use, research and development (R&D), and end-of-line testing in production.
The scalable multi-channel platform allows flexible expansion from single-channel operation to parallel configurations, reliably covering a wide range of performance requirements. The result is an efficient laboratory test bench for batteries and accumulators that combines speed, stability, and flexibility in one system. The series meets the highest demands and provides a precise method for cell testing in any application.
Highest precision and fast response
The B2000-EC Series features fast current and voltage control, accurately reproducing dynamic load changes, pulse profiles, and realistic driving cycles. This enables reproducible test results for cell characterization, aging analysis, and validation, from short screening tests to demanding endurance runs.
Battery cell testing, capacity testing, and state-of-charge measurement are performed reproducibly with the battery tester, ensuring maximum test safety and high accuracy for rechargeable batteries.
Flexible – from single-channel to parallel operation
The modular architecture allows channels to be combined as required and operated in parallel to handle higher loads. A wide range of operating modes and freely configurable sequences support complex test plans, including negative voltage discharge and ripple injection (optional) for realistic test scenarios.
Integrated temperature measurement further supports reliable evaluation of thermal effects, ensuring the highest level of test safety during battery cell testing.
Intelligent software and data management
The integrated software provides real-time visualization of relevant measurement values and structures the test process. Test results can be documented, exported, and further processed to ensure full traceability.
Thanks to open interfaces, scripting, and templates, the battery tester integrates seamlessly into existing test environments. The software includes sequence control for defined test cases as well as interfaces for components and battery testers. Step control guides the battery tester through defined test sequences, logs results, and provides step-specific measurement and limit parameters for cells, increasing test safety and comparability.
Conclusion: maximum test safety and availability
The B2000-EC Series test system combines everything required for modern battery testing, from research and development to cell characterization and end-of-line testing.
With OCV and DCIR tests, capacity and cycle tests, pulse profiles, and realistic driving cycle simulations, it covers the full range of applications.
Comprehensive protection functions ensure precise test results and maximum test safety. Whether for fast functional tests, battery cell testing, or demanding endurance tests, the series delivers maximum availability and long-term investment security.
Whether in the laboratory or production – we support your test tasks.
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Available documents (Subject to change)
Features of the B2000-EC Series
- Test and measurement functions:
- Voltage range (charge, discharge): 0 to +6 V (NG models) or –6 V to +6 V (PG models), optional –10 V to +10 V
- Current output range: 0 to 800 A
- Minimum operating interval: 10 ms
- Data logging interval: 1 ms for precise test results
- Current rise time: 1 ms at 10% to 90%
- Voltage accuracy: ±0.02% F.S. / ±0.05% F.S.
- Current accuracy: PG models ±0.02% F.S. / NG models ±0.05% F.S.
- Up to 16 channels, expandable as a multi-channel test system
- Four current ranges for flexible test procedures
- Temperature sensors: type K, type T (–50 °C to +200 °C)
- Operating modes: CV, CC, CR, CC+CV, pulse current, pulse load, ramp current, ramp load
- Flexible parallel operation up to 4800 A, ideal for battery packs and large batteries
- Current switching time: 2 ms at –90% to +90%
- Matrix mode (LUT)
- Real-time monitoring of measurement data with high sensitivity for accurate functional tests
- Support for discharge tests with negative voltage
- Ripple injection to simulate line disturbances (optional)
- Communication interfaces: LAN, RS-485, CAN FD for versatile peripheral integration
- Integrated test sequences and parameterized test cases for recurring applications
- Protection functions – AC and DC side:
- OCP (overcurrent protection) for safe load testing
- OVP (overvoltage protection) to protect devices under test such as battery cells
- OPP (overpower protection) to prevent overload and equipment damage
- Power-off protection for controlled shutdown in fault conditions
- Reverse polarity protection for reliable operation in case of wiring errors
- Short-circuit protection for maximum operational safety
- Cell voltage limits as a safety threshold for batteries
- Cell overtemperature limits to prevent thermal damage
- Protection functions – test safety:
- Total voltage monitoring for safe system operation
- Cell voltage monitoring to protect against overvoltage and undervoltage
- Temperature monitoring to prevent thermal risks
- State-of-charge monitoring for precise battery management
- Capacity limit as a protection and shutdown criterion for test control and capacity tests
- Protection against abnormal voltage, current, and temperature values with high sensitivity
- Advanced protection functions:
- Protection in case of communication timeout
- Protection against measurement fluctuations
- Peripheral protection for external interfaces
- Software-based protection for safe system behavior
- Emergency stop function for maximum operational safety
- Testing of electrical components with reproducible test results
Options & Accessories for the B2000 EC Series
Power Supply Cable Sets
(1× positive lead + 1× negative lead per channel, incl. voltage sense lead)
Specification: 100 A, 3 AWG ≈ 26.7 mm² → 1×25 mm²:
- PA1080 WC T1.1: 3 m high-current cable, 3.2 m voltage sense cable
- PA1080 WC T1.2: 3.5 m high-current cable, 3.7 m voltage sense cable
- PA1080 WC T1.3: 4 m high-current cable, 4.2 m voltage sense cable
- PA1080 WC T1.4: 5 m high-current cable, 5.2 m voltage sense cable
Specification: 200 A, 1/0 AWG ≈ 53.5 mm² → 1×50 mm²:
- PA1080 WC T2.1: 3 m high-current cable, 3.2 m voltage sense cable
- PA1080 WC T2.2: 3.5 m high-current cable, 3.7 m voltage sense cable
- PA1080 WC T2.3: 4 m high-current cable, 4.2 m voltage sense cable
- PA1080 WC T2.4: 5 m high-current cable, 5.2 m voltage sense cable
- PA1080 WC T2.5: 10 m high-current cable, 10.2 m voltage sense cable
- PA1080 WC T2.6: 15 m high-current cable, 15.2 m voltage sense cable
Specification: 300 A, 3/0 AWG ≈ 85 mm² → 1×85 mm²:
- PA1080 WC T3.1: 3 m high-current cable, 3.2 m voltage sense cable
- PA1080 WC T3.2: 3.5 m high-current cable, 3.7 m voltage sense cable
- PA1080 WC T3.3: 4 m high-current cable, 4.2 m voltage sense cable
- PA1080 WC T3.4: 5 m high-current cable, 5.2 m voltage sense cable
Specification: 400 A, 4/0 AWG ≈ 107 mm² → 1×120 mm²:
- PA1080 WC T4.1: 3 m high-current cable, 3.2 m voltage sense cable
- PA1080 WC T4.2: 3.5 m high-current cable, 3.7 m voltage sense cable
- PA1080 WC T4.3: 4 m high-current cable, 4.2 m voltage sense cable
- PA1080 WC T4.4: 5 m high-current cable, 5.2 m voltage sense cable
Specification: 500–600 A, 185 mm² → 1×185 mm²:
- PA1080 WC T5.1: 3 m high-current cable, 3.2 m voltage sense cable
- PA1080 WC T5.2: 3.5 m high-current cable, 3.7 m voltage sense cable
- PA1080 WC T5.3: 4 m high-current cable, 4.2 m voltage sense cable
- PA1080 WC T5.4: 5 m high-current cable, 5.2 m voltage sense cable
- PA1080 TS T1 3.2 1: 1× thermocouple cable, length 3.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 3.2 2: 2× thermocouple cables, length 3.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 3.2 3: 3× thermocouple cables, length 3.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 3.2 4: 4× thermocouple cables, length 3.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 3.7 1: 1× thermocouple cable, length 3.7 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 3.7 2: 2× thermocouple cables, length 3.7 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 3.7 3: 3× thermocouple cables, length 3.7 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 3.7 4: 4× thermocouple cables, length 3.7 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 4.2 1: 1× thermocouple cable, length 4.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 4.2 2: 2× thermocouple cables, length 4.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 4.2 3: 3× thermocouple cables, length 4.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 4.2 4: 4× thermocouple cables, length 4.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 5.2 1: 1× thermocouple cable, length 5.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 5.2 2: 2× thermocouple cables, length 5.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 5.2 3: 3× thermocouple cables, length 5.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 5.2 4: 4× thermocouple cables, length 5.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 10.2 1: 1× thermocouple cable, length 10.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 10.2 2: 2× thermocouple cables, length 10.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 10.2 3: 3× thermocouple cables, length 10.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 10.2 4: 4× thermocouple cables, length 10.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 15.2 1: 1× thermocouple cable, length 15.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 15.2 2: 2× thermocouple cables, length 15.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 15.2 3: 3× thermocouple cables, length 15.2 m/channel, measurement deviation: ±1 °C
- PA1080 TS T1 15.2 4: 4× thermocouple cables, length 15.2 m/channel, measurement deviation: ±1 °C
- Output voltage range: –10 … +10 V, channel power remains unchanged, extended voltage range
- Temperature monitoring unit: Supports integration of a temperature monitoring unit and sensor cables
- Computer and accessories: ADVANTECH desktop, IPC51222001 T / AIMB 508G2 / Intel i5 12500 / DDR4 3200 16 GB / HDD 2 TB / M.2 128 GB / DVDRW / Windows 11, pre-installed with Office Small Business 2024, incl. 24" monitor, mouse, and keyboard
- Test fixture: Custom configurable, tailored to the customer's cell specifications
Scope of delivery of the B2000 EC Series
- Ethernet cable (PC LAN), 5 m
- CAN cable, 5 m
- 1× packing list
- 1× inspection report
- USB flash drive with software and user manual
Application Examples of the B2000-EC Series
- Battery development and research:
- Cell characterization: precise determination of OCV, DCIR, capacity, and cycle life
- Aging tests: simulation of realistic charge and discharge profiles to analyze degradation mechanisms in batteries
- Materials research: validation of new electrode and separator materials under application-oriented test procedures
- The system supports screening, characterization, and validation according to project-specific test requirements
- Automotive and e-mobility:
- Driving cycle simulations: replication of realistic road and load profiles such as WLTP, NEDC, and US06
- BMS validation: testing battery management systems for voltage monitoring, balancing, and safety functions, including cell testing, state-of-charge measurement, and evaluation of test results using defined test procedures
- End-of-line testing: 100% inspection of cells, modules, and packs using battery testers
- Production and quality assurance:
- End-of-line testing (EOL): functional final inspection with OCV/DCIR measurements and capacity checks
- Quality monitoring: detection of manufacturing deviations through test results, trend analysis, and limit monitoring
- Product release: verification of compliance with standards and customer requirements
- Power electronics and energy storage:
- Testing of power components: inverters, DC/DC converters, chargers
- Simulation of line disturbances: ripple injection and negative voltage discharge for robustness testing
- Long-term and stress testing: validation of energy storage solutions in continuous operation, including functional tests and capacity measurements
Kewell Technology Co, Ltd, founded in 2011, is a pioneering manufacturer of intelligent manufacturing equipment and testing solutions for various industries.
The product lines are divided into the following areas:
- Power supplies for test systems
- Hydrogen energy test equipment and intelligent manufacturing equipment
- Power semiconductor and production line test systems