5V 20A 256 channels Battery Capacity Grading Machine
Product Description
ACEY-BCT520-256H Battery Capacity Grading Machine is a 256-channel battery testing and grading system designed for lithium battery charging, discharging, capacity testing and sorting. It provides independent constant current and constant voltage control for each channel, with a 5V 20A operating range, automatic tray type clamping and energy feedback technology. The system supports programmable multi-step testing, battery capacity grading, Pass or NG judgment, data recording and report export for efficient battery performance evaluation and production quality control.
Product Features
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256-channel independent battery testing
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5V 20A charging and discharging range
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0 to 5V voltage measurement range
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50mA to 20A current range
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0.1mV voltage control and sampling resolution
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1mA current control resolution
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Constant current and constant voltage charging
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Constant current, constant power and constant resistance discharge
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Up to 32 steps and 256 cycles
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Automatic capacity grading and Pass or NG judgment
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Barcode scanning and test data management
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EXCEL, Word and MDB data export
Main technical parameters
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Structure of equipment |
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Number Of Device Channels |
The whole machine has a total of 256 channels |
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Dimensions |
L1684*W1091*H1640 |
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Chassis Color |
Standard gray black (can be customized) |
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Fixture Form |
Customized fixture, using pallet structure, cylinder open clamp. |
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Fixture Spacing |
37mm |
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Support Battery Specifications |
Length: 120-185mm; Diameter: 34/35mm |
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Channel Control Mode |
Each battery has an independent constant current and constant voltage source, which is stable and without impact. can be realized |
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start, stop, pause, resume and protect |
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Each channel has independent constant voltage and constant current hardware control circuit |
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Working Power |
The charging current and discharging current accuracy of each channel can be automatically calibrated by software |
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Power Factor |
Three-phase five-wire system AC380V±10%, 50HZ |
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Ac Current Distortion Rate |
≥0.99 |
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Power Department Efficiency Index |
≤2% |
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Working Power Consumption |
Charge ≥80%, discharge ≥70% |
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Equipment Failure Rate |
<1% |
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Working Environment |
Temperature -10~40, relative humidity 80% |
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Cooling Method |
TNatural air intake, upward exhaust |
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Power Section Protection Function |
1. Grid voltage over-limit protection 2. Power grid frequency over-limit protection |
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Channel parameters |
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Voltage measurement range |
DC 0~5V |
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battery voltage range |
Charging DC 0~4.5V; Discharging DC 4.5~2V |
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Constant voltage range |
DC 2~4.5V |
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Voltage accuracy |
±(0.5‰ reading+0.5‰ full scale), |
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Voltage control resolution |
0.1mV |
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Voltage sampling resolution |
0.1mV |
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Voltage stability |
≤(±1mV) |
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Current range |
Charging DC 50mA~20A; Discharging DC 50mA~20A |
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Current accuracy |
±(0.5‰reading+0.5‰full scale) |
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Current control resolution |
1mA |
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Current sampling resolution |
0.1mA |
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Current stability |
≤(±1mA) |
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Current Rise Time (90% Load) |
≤50MS |
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Channel startup time (90% load) |
≤50MS |
Product Details

FAQ
Q: What is a battery capacity grading machine used for?
A:ACEY‑BCT520‑256H Battery Capacity Grading Machine is used for cylindrical lithium‑ion battery charge and discharge testing, capacity testing, cell grading and performance evaluation. With 256 independent channels, it can test multiple battery cells simultaneously and classify cells according to their test results.
Q: How does battery capacity grading work?
A:ACEY‑BCT520‑256H Battery Capacity Grading Machine grades battery cells by performing programmed charging and discharging tests while recording parameters such as capacity, test time, open‑circuit voltage and discharge platform. The collected test data can then be used to classify cells according to preset grading requirements.
Q: What parameters are used to grade lithium-ion battery cells?
A:ACEY‑BCT520‑256H Battery Capacity Grading Machine supports battery sorting based on capacity, test time, open‑circuit voltage and discharge platform. It also supports up to 32 process steps and 256 cycles, allowing manufacturers to perform programmable charge‑discharge testing and evaluate battery cell consistency.
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