Regenerative High-Precision Battery Test System For Li-ion Performance Analysis
Product information:
The regenerative high-precision battery pack testing equipment is capable of testing various performance parameters of lithium-ion batteries, such as capacity, state of charge (SOC), overcharge, and over-discharge performance.
The system features high power, high efficiency, high precision, and high performance.
By adopting energy regeneration technology, it significantly reduces heat generation, power consumption, and operational costs.
System Architecture:
The equipment mainly consists of the host computer (upper controller), middle controller, DC/AC module, DC/DC module, lower controller, and data acquisition & processing system.
It can collect real-time data such as voltage, current, capacity, and energy for each individual cell. Optional temperature acquisition channels are available. All collected data are stored in a dedicated database, which supports data statistics, analysis, and report generation.
System architecture diagram (Figure 1):
Figure 1 System architecture diagram
System Main Functions:
1.Battery cycle life testing
2.Battery capacity testing
3.DC internal resistance testing
4.Charge/discharge characteristic testing
5.Charge retention testing
6.Charge/discharge efficiency testing
7.Deep discharge / constant voltage discharge testing
8.Overcharge and over-discharge tolerance testing
9.Temperature characteristic testing
System Main Features:
1.Energy regeneration technology for high efficiency, reduced heat, and lower energy consumption.
2.Three-phase balance technology (no neutral line) reduces grid load.
3.Soft start-up function minimizes impact on the power grid.
4.Measurement accuracy better than ±0.05%; data recording interval up to 1000ms; excellent stability.
5.Each channel operates independently and supports individual charge/discharge settings.
6.Comprehensive protection functions: input/output, software/hardware, reverse polarity, power failure recovery, and poor contact protection.
7.Smooth transition between constant current and constant voltage without surge current.
8.Multi-level network integration: one PC can control over 1000 channels; large systems support remote monitoring.
9.Channels can be freely paralleled for flexible operation (multi-use in one system).
10.Modular plug-in design for easy maintenance.
11.Quick-connect output lines for convenient installation and servicing.
12.Gold-plated probe clamps minimize heating and simplify battery installation/removal.
13.High-speed DSP with floating-point arithmetic as the control core for precise digital control.
14.Synchronous rectification technology enhances energy efficiency and reduces hardware size.
15.Rich peripherals and fast computing support data processing and system control.
16.Control variables sent to DSP via I/O for processing.
17.Simple, reliable hardware design.
18.Modular structure allows easy upgrades and maintenance.
19.Clear data presentation with real-time monitoring and MES data uploading(optional).
Technical Parameters:
| No. | Item | Specification |
| 1 | Model | SNCTS100V60A-8CH |
| 2 | Main Channels | 8 channels |
| 3 | Channel Operation Mode | Fully independent |
| 4 | Main Channel Operating Modes | Charging: CC, CV, CCCV (smooth transition without impact) Discharging: CC, CP, CV Others: Standby, Stop |
| Main Channel Test Termination Conditions | Time, voltage, current, capacity, etc. |
| 5 | Main Channel Voltage | Charging Voltage Range | 0V-100V |
| Discharging Voltage Range | 10V-100V |
| Accuracy | ±(0.05%RD+0.05%FS) |
| Resolution | 0.1mV |
| Main Channel Current | Max | ±60A |
| Min | ±150mA |
| Accuracy | ±(0.05%RD+0.05%FS) |
| Resolution | 0.1mA |
| Current Start Response Time | ≤20ms |
| Current Switching Time | ≤40ms |
| Time | Resolution | 1000mS |
| Power | Output | Max Continuous Output per Channel: 6000W |
| Stability | ±0.1%FS |
| Efficiency | Maximum Charge Efficiency | 85% |
| Maximum Discharge Efficiency | 85% |
| Grid Feedback | Harmonic Distortion | ≤3% |
| Power Factor | ≥0.99 |
| Auxiliary Channel Cutoff Function | The system allows setting conditions under which the main channel step will stop or switch when the auxiliary channel signal reaches a specified value. |
| 6 | Communication | RJ-45 Ethernet interface for stable and real-time data transmission |
| BMS Communication | CAN/RS485 (optional) |
| 7 | Control Program | Supports power-off data protection, enabling test continuation after unexpected power failure, manual stop, or from saved data files. |
| Safety limits can be configured, including lower and upper voltage limits, lower and upper current limits, and voltage/current trend protection.Protection can be set for each individual step. |
| Parameters such as upper/lower voltage limits and upper/lower temperature limits can be configured for the auxiliary channel. |
| Max cycles | 9999 |
| Nesting layers | up to 10 |
| Time formats | h / min / s |
| Data recording | ≥1000ms |
| 8 | Data Display | Cycle List | cycle number, charge/discharge capacity, energy, average voltage |
| Process List | process number, mode, time, capacity, energy, end voltage/current |
| Detail List | record number, system time, cumulative time, voltage, current, power, energy |
| 9 | Date Export | Data exportable to Excel and chart files; provides efficiency reports, charge/discharge curves, voltage/current-time characteristics, etc. |
| 10 | Curve Types | X-axis: total time, capacity, cycle count, etc. |
| Y-axis:Total voltage, current, capacity, cell temperature, charge/discharge capacity, cell voltage, etc. — all can be freely configured. |
| 11 | Software Protection | over/under-voltage, over/under-current, over-temp, power loss recovery, abnormal current fluctuation, etc. |
| Hardware Protection | reverse polarity, overcurrent, overvoltage. |
| Alarm | emergency cut-off switch, auto shutdown, auto load connection/disconnection. |
| 12 | Output Lines | Four-wire connection (separate current and voltage lines). |
| 13 | Cooling | Forced air cooling. |
| 14 | Safety Level | Complies with EN60950 and GB4943. |
| Noise | Tested according to the method specified in IEC 62040-3. Noise level is less than 75 dBA. The sound level meter used shall comply with Type I requirements of IEC 804, with an accuracy better than ±0.5 dB. |
| Protection level | IP22 |
| 15 | Maintainability | Modular design; spare parts replaceable; free maintenance during warranty period. |
| 16 | Software Upgrade | Lifetime free software upgrades (until hardware incompatibility). |
| 17 | Failure Rate | ≤1% |
| 18 | Equipment Dimensions | Cabinet: 670(W)×850(D)×960(H) mm
Main Unit: 560(W)×620(D)×100(H) mm
(excluding signal lamp) |
| 19 | Maintenance Direction | Front and rear access |
| 20 | Color | Main unit: Ice Gray GY09
Cabinet: Machine Tool Gray GY10
(Customizable) |
| 21 | Environment | Power Supply | 380VAC ±10%, three-phase five-wire, 50Hz ±5% |
| Rated Power | 54kW (L25²×3 + N4² + PE4²) |
| Ambient Temperature | -20℃ ~ 40℃ |
| Humidity | 10%–90% RH, non-condensing |
| Other | Avoid humidity, vibration, and dust; not for explosive or vaporous environments |
| 22 | Safety Notes | 1. Ensure proper grounding of the equipment. 2. Keep area around equipment clear and clean. 3. Do not open internal panels while operating. 4. Ensure test channels are idle before connecting or removing batteries. 5. In case of emergency, press the emergency stop switch before any other operation. |
Main Control Interface:
Figure 4.1: Host Computer Main Interface
Process Flow Editing Interface:
Figure 4.2: Host Computer Process Flow Editing Interface
Host Computer Data Viewing Interface:
Figure 4.3: Host Computer Data Viewing Interface
Component List:
| No. | Component | Manufacturer | Origin |
| 1 | MCU | ST / TI | Italy / France / USA |
| 2 | Fan | Delta / SUNON | China |
| 3 | Fuse | Littlefuse / Bussmann | USA |
| 4 | IC | TI / ON | USA |
| 5 | IGBT | Infineon | USA |
| 6 | Sampling Resistor | ISABELLENHÜTTE | Germany |
| 7 | AD | TI | USA |
| 8 | DA | ADI | USA |
| 9 | Relay | OMRON | Japan |
| 10 | Breaker/Contactor | CHINT / Delixi | China |
| 11 | Bidirectional Power Supply | TuWei / Lorentz | China |
| 12 | Probe | Kangxinda / Yingzhibao | China |
Optional Accessories:
| No. | Item | Range / Accuracy | Quantity | Remarks |
| 1 | Auxiliary Temperature Channel | Temperature Probe Model | NTC(R25=10KΩ±1% B25/50=3950±1%) | As required | Supplied upon delivery |
| Temperature Probe Accuracy | Range: -40℃ to 150℃
Accuracy: ±1℃ |
| 2 | Computer | CPU: Intel 10th Gen i5 (6 cores or higher)
Memory: 16GB DDR4
Storage: 500GB SSD
Display: ≥23.8 inches | As required | Supplied upon delivery |
