JH8008A Battery Pack Balancing Tester (Energy-Regenerative Type)
This device is primarily used for correcting voltage imbalances in battery modules and battery packs. After connecting the cells to be balanced, manually configure the battery type, balancing termination voltage, balancing current, and protection parameters (such as cell over‑voltage protection threshold, cell under‑voltage protection threshold, cell over‑temperature protection threshold, and charging overcurrent protection threshold). Once the settings are complete, the device automatically allocates charging or discharging to each channel based on the balancing criteria. During the balancing process, if a cell’s voltage has already reached the termination condition, that channel enters standby mode, while the remaining channels continue charging or discharging until all cells have met the termination conditions.
- Product Description
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I. Overview
This device is primarily used for correcting voltage imbalances in battery modules and battery packs. After connecting the cells to be balanced, manually configure the battery type, balancing termination voltage, balancing current, and protection parameters (such as cell over‑voltage protection threshold, cell under‑voltage protection threshold, cell over‑temperature protection threshold, and charging overcurrent protection threshold). Once the settings are complete, the device automatically allocates charging or discharging to each channel based on the balancing criteria. During the balancing process, if a cell’s voltage has already reached the termination condition, that channel enters standby mode, while the remaining channels continue charging or discharging until all cells have met the termination conditions.
II. Main Test Functions
1) Supports charge–discharge balancing for battery cells in strings of any length, up to 8 cells (including lithium titanate, lithium iron phosphate, ternary, and others).
2) Supports single-cell voltage monitoring for battery packs, with a measurement range of 1–5 V and an accuracy of ±0.1% FS.
3) The single channel must support a maximum charge–discharge balancing current of 50 A, and the magnitude of this balancing current must be manually adjustable.
4) Equipped with protection functions including overcharge protection, overdischarge protection, reverse polarity protection, short-circuit protection, and AC input overvoltage/undervoltage protection.
5) A controlled equalization method is employed: equalization commences when the voltage difference between individual cells exceeds a preset threshold.
6) Supports host‑computer display of battery pack status, parameters, real-time voltage of each cell, and charge/discharge current for each cell.
7) Equipped with independent temperature measurement (optional), allowing the setting of an over-temperature protection threshold.
8) The system shall include test data management capabilities and support test data retrieval and query functions.
The PACK balancing test platform employs a modular design: each fully functional, controlled charge–discharge module corresponds to a single cell and utilizes proprietary charge–discharge control technology to meet the requirements for rapid charging and discharging of individual cells. This enables real-time, online health management and optimization of lithium‑ion battery packs, thereby significantly extending the cycle life of power lithium‑ion battery packs.
It supports real-time monitoring and measurement of individual cell voltages, as well as automatic calculation of charging energy. Equipped with multiple protection features, it ensures the safety of both the battery and the charger itself. Additionally, it offers a process‑editing function, facilitating capacity verification and state‑of‑charge configuration for batteries. It is suitable for charging and discharging lithium batteries such as lithium iron phosphate, ternary lithium, and lithium titanate types; it features 32 channels, with adjustable constant‑current charge/discharge currents ranging from 1 to 50 A, and operates on a 220 VAC input.
III. Main Technical Parameters
Serial number Project Technical indicators 1 Equipment dimensions 650 mm wide, 170 mm high, 700 mm deep 2 Device color 7035 Industrial Ash 3 Equipment weight 30kg 4 Number of device channels 8 channels 5 Operating Mode Manual mode 6 Equipment Power Supply AC 220V, 50±5 Hz 7 Operating environment Temperature: 0–35°C,
Humidity: 10%–85%
8 Voltage range Charging: 0V–5V (device port)
Discharge: 1.5 V to 5 V (device port)
9 Voltage acquisition accuracy ±0.1%FS 10 Voltage resolution 1 mV 11 Current range -50A to 50A 12 Current sampling accuracy ±0.1%FS 13 Current resolution 1 mA 14 Single-channel output power 250W 15 Power stability 0.2%FS 16 Time range ≤300*24 hours/per operation step 17 Temporal resolution 1S 18
Data recording method Current difference: 0.05%FS to 100%FS
Voltage difference: 0.05%FS to 100%FS
Capacity range: 1 mAh to 10 Ah
19 Host computer communication method CAN/RS485 20 Temperature sampling channel Routes 1–8 21 Temperature sampling range -40℃ to 150℃ 22 Temperature sampling accuracy ±1℃ 23 Protection function
1) Input polarity protection
2) Input short-circuit protection
3) Cell overpressure protection
4) Cell undervoltage protection
5) Voltage Transient Protection
6) Over-temperature protection
7) Power Grid Outage Protection
8) AC input overvoltage and undervoltage protection
24 Dustproof and heat dissipation Equipped with dust-proof and heat-dissipation features. 25 Cooling method Fan air cooling 26 Security Level Complies with EN 60950 and GB 4943 requirements. 27 Noise ≤72dBA 28 Data Details Includes record serial number, time, voltage, current, capacity, energy, power, cell voltage 1–cell voltage n, and cell temperature 1–cell temperature n (optional). 29 Curve Type X-axis: Total time, capacity, energy, power, number of cycles, etc.
Y-coordinate: total voltage, current, capacity, energy, cell voltage 1–cell voltage n,
Monomer temperature 1–Monomer temperature n (option)
30 Programmatic control 1) Number of cycles: 100,000 times
2) Programmable steps: 255 lines, 1,000 steps under a single operating condition.
3) Nested Loops: Supports nested loops, with a maximum of 5 levels.
4) Programming features: Each machining step can have one or more exits.
31 Hardware protection Overvoltage protection, undervoltage protection, short-circuit protection, reverse battery connection protection, overcurrent protection, and overtemperature protection. 32 Software Protection 1) Supports power-loss data protection
2) Supports resume-on-boot
3) Overvoltage protection, undervoltage protection, capacity protection, overcurrent protection, undercurrent protection, and temperature protection
4) Supports reverse‑polarity protection, communication‑fault protection, and auxiliary‑module communication protection.
33 Grid-side protection Undervoltage, overvoltage, overcurrent, and short-circuit protection
Keywords: battery charge–discharge cabinet, lithium‑battery charge–discharge cabinet, sodium‑battery charge–discharge tester, solid‑state battery charge–discharge tester, lithium‑battery charge–discharge testing system, lithium‑battery charge–discharge tester, lithium‑battery capacity‑grading cabinet, power‑battery charge–discharge testing system, lithium‑battery pack charge–discharge testing system
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Huizhou Jinghui Instrument and Equipment Co., Ltd.
Service Hotline:400-1331-882
No. 13, Jinda Road, Huinan Science and Technology Park, Huizhou City, Guangdong Province
E-mail:jh@jhyq.com
