Six-Channel High-Rate Battery Testing for Single-Cell Evaluation
The KIKUSUI PFX2731S is a high-rate charge/discharge tester that integrates six independent 6 V / 20 A battery-test channels, measurement circuitry, and system control into a single chassis.
Designed for high-power single-cell evaluation, the PFX2731S supports lithium-ion and all-solid-state battery development with static and pattern charge/discharge modes, C-rate-based test setup, and continuous voltage and current recording as fast as 10 ms across all channels.
6 Independent Channels
Each channel is independently isolated and supports charge/discharge testing up to 6 V and 20 A.
10 ms Recording
Continuously record voltage and current on all channels at the fastest data-recording setting.
9 Test Modes
CC, CC-CV, CP, CP-CV charging and discharging plus programmable pattern charge/discharge.
Up to 24 Channels
Connect up to four PFX2731S units by LAN and operate them from one PC.
Independent hardware and software protection, a built-in path switch, incorrect-wiring detection, capacity protection, optional temperature measurement, and synchronized environmental-chamber operation support long-duration battery evaluation with multiple layers of test protection.
Six Fully Independent Channels
One PFX2731S contains six independent charge/discharge channels. Isolation is provided between channels and between each channel and the chassis, allowing simultaneous independent single-cell tests.
6 V / 20 A High-Rate Operation
Each channel provides separate 2 A and 20 A current ranges with charge and discharge voltage control from -1.000 V to 6.000 V, supporting low-current through high-rate single-cell evaluation.
10 ms Continuous Data Recording
Voltage and current data can be recorded continuously at selectable 10 ms, 100 ms, or 1 s intervals. Delta-voltage and delta-current conditions can also trigger additional data acquisition.
Nine Charge / Discharge Modes
Supports CC, CC-CV, CP, and CP-CV charging; CC, CC-CV, CP, and CP-CV discharging; plus programmable pattern charge/discharge using CC(+CV) or CP(+CV) operation.
100,000-Step Pattern Testing
Constant-current and constant-power pattern operation supports up to 100,000 steps, with programmable step widths from 100 ms to 999.9 s and charge-to-discharge switching in 100 ms maximum.
C-Rate Test Configuration
Test currents, pattern-step currents, current limits, and selected cutoff conditions can be entered using C-rate values based on the battery's nominal capacity.
Independent Hardware / Software Protection
Separate hardware and software overvoltage, undervoltage, and overcurrent protection are complemented by capacity, temperature, SOC, connection-check, and path-switch protection functions.
LAN-Based Multi-Channel Expansion
A single PC can control up to four PFX2731S units for as many as 24 test channels. LAN connectivity also supports integration with compatible constant-temperature chambers.
All-solid-state battery single-cell evaluation
Lithium-ion battery single-cell evaluation
High-rate charge performance testing
High-rate discharge performance testing
Battery charge/discharge characteristic testing
C-rate-based battery evaluation
Pattern charge/discharge testing
Temperature-controlled battery evaluation with synchronized environmental chambers
PFX2731S Specifications
| Model | PFX2731S |
|---|---|
| Product Type | High-Rate Battery Tester |
| Number of Channels | 6 channels per unit |
| Channel Isolation | Between channels and between channel and chassis |
| Charge Voltage Range | -1.000 V to 6.000 V |
| Discharge Voltage Range | -1.000 V to 6.000 V |
| Charge Current — 2 A Range | 0.0000 A to 2.0000 A |
| Charge Current — 20 A Range | 0.000 A to 20.000 A |
| Discharge Current — 2 A Range | 0.0000 A to 2.0000 A |
| Discharge Current — 20 A Range | 0.000 A to 20.000 A |
| CC Setting Accuracy — 2 A Range | ±(0.15% of setting + 1.0 mA) |
| CC Setting Resolution — 2 A Range | 0.1 mA |
| CC Setting Accuracy — 20 A Range | ±(0.15% of setting + 10.0 mA) |
| CC Setting Resolution — 20 A Range | 1 mA |
| CV Setting Accuracy | ±(0.05% of setting + 1.2 mV) |
| CV Setting Resolution | 1 mV |
| CP Range — 2 A Range | -0.100 W to 12.000 W |
| CP Range — 20 A Range | 0.10 W to 120.00 W |
| Charge / Discharge Modes | CC / CC-CV / CP / CP-CV / Pattern |
| Pattern Steps | Up to 100,000 |
| Pattern Step Time | 100 ms to 999.9 s |
| Charge / Discharge Switching Time | 100 ms max. |
| Current Measurement Resolution — 2 A Range | 0.01 mA |
| Current Measurement Resolution — 20 A Range | 0.1 mA |
| Voltage Measurement Range | -2.0000 V to 7.0000 V |
| Voltage Measurement Resolution | 0.1 mV |
| Voltage Measurement Accuracy | ±(0.05% of reading + 1.2 mV) |
| Data Recording Interval | 10 ms / 100 ms / 1 s |
| C-Rate Setting Range | 0.001 to 99.999 C |
| Temperature Measurement | Type T thermocouple, optional |
| Temperature Measurement Range | -100.0 °C to 400.0 °C |
| Temperature Measurement Interval | 2 s |
| System Expansion | Up to 4 units / 24 channels per PC |
| System Connection | LAN |
| Application Software | BPChecker4000 SD035-PFX |
| Nominal AC Input | 200 Vac to 240 Vac, 50/60 Hz, single phase |
| AC Input Range | 180 Vac to 250 Vac |
| Maximum Power Consumption | 1870 VA max. per 6-channel frame at rated charging operation |
| Weight | Approx. 34 kg (75 lb) |
Battery Protection and BPChecker4000 Test Control
The PFX2731S uses independent hardware and software protection systems together with dedicated BPChecker4000 test software to support long-duration battery charge/discharge evaluation.
Hardware and software limits separately monitor voltage and current. Additional software protection monitors capacity, temperature, and SOC, while a built-in path switch can disconnect the test path rapidly when an abnormal condition is detected.
Hardware + Software Protection
Independent OVP, UVP, and OCP layers provide redundant battery-test protection.
Path Switch
Built-in switching rapidly interrupts the test path when an abnormal condition is detected.
Capacity / SOC Protection
Software limits can monitor integrated capacity and upper or lower SOC conditions.
BPChecker4000
Create test conditions, execute charge/discharge tests, and store test results using dedicated software.
Protection values can also be configured by profile, allowing different limits to be applied as the charge/discharge procedure changes. Test cutoff conditions can use voltage, elapsed time, current, capacity, energy, SOC, temperature, and other supported criteria.
