Achieve Long Service Life Battery Modules by Measuring Reaction Resistance

SKU: BT4560 Category:


Hioki benchtop battery testers support simultaneous high-speed measurement in the ever-expanding production lines of increasingly larger lithium-ion low resistance batteries. The BT4560 battery impedance tester measures the impedance of lithium-ion batteries using the low-frequency AC-IR measurement method without charging and discharging the battery, substantially reducing the time needed to inspect the internal resistance of battery cells.

Key Features
• Low-frequency AC-IR measurement* : Measure the reaction resistance of a battery
*The BT4560 ensures battery cell quality by measuring internal impedance at a low frequency of 1 Hz or below
• Extremely reliable measurements for low-impedance batteries
*The BT4560 uses a testing current of 1.5 A at the 3mΩ range, which improves the S/N ratio
• Circuit configuration highly tolerant of contact and wire resistance to provide stable measurements
• Voltage measurement function equivalent to 6-digit DMM (± 0.0035% rdg.)

Model No. (Order Code)


Note: This product is not supplied with measurement probes. Please select and purchase the measurement probe options appropriate for your application separately.

USB 2.0
3 year


Manage electrode reaction resistance, electrolyte resistance, and welding resistance to Improve the quality of battery cell inspections

○ Set your own measurement frequency between 100 mHz and 1.05 kHz ○ Use low frequencies to measure electrode reaction resistance ○ Use high frequencies to measure electrolyte resistance and welding resistance ○ Create Cole-Cole plots (with bundled application program) ○ Use equivalent circuit analytic software to analyze internal battery defects

Measure very low impedances of 1mΩ or less

Some high-capacity Li-ion batteries have an internal impedance less than 1 mΩ. The BT4560 is designed to measure very low impedances of 1mΩ or less with high stability and reproducibility.

Dedicated probes for four-terminal pair measurement reduce the magnetic flux generated

Probes with a four-terminal pair structure provide very stable measurement that is less affected by environmental noise or cabling.

BT4560 Battery Impedance Meter Introductory Video

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Allowable input voltage Up to 5 V
Measured information Impedance, voltage, temperature
Impedance measurement Parameters: R, X, Z, θ, Frequency: 0.1 Hz to 1050 Hz, Measurement ranges: 3.0000 mΩ, 10.0000 mΩ, 100.000 mΩ
Testing current: 3 mΩ range: 1.5 Arms, 10 mΩ range: 500 mArms, 100 mΩ range: 50 mArms
Voltage measurement Measurement range: 5.00000 V (single range), Measurement time: 0.1 s (Fast) to 1.0 s (Slow)
Temperature measurement Range: -10.0 °C to 60.0 °C, Measurement time: 2.3 s
Basic accuracy Z: ±0.4% rdg. θ: ±0.1 °, V: ±0.0035% rdg. ±5 dgt. , Temperature: ±0.5 °C (at 10.0 to 40.0 °C)
Functions Comparator, self-calibration, sample delay, average, contact check, measurement current error, and other
Interfaces RS-232C/USB (virtual COM port) * Cannot be used simultaneously
EXT. I/O (NPN/PNP can be switched)
Power supply 100 to 240 V AC, 50/60 Hz, 80 VA max
Dimensions and mass 330 mm (12.99 in) W × 80 mm (3.15 in) H × 293 mm (11.54 in) D, 3.7 kg (130.5 oz)
Accessories Power cord ×1, Instruction manual ×1, Zero-adjustment board ×1, USB cable (A-B type) ×1, CD-R (communication instruction manual, PC application software, USB driver) ×1



User Guides

White Paper on the Low Frequency AC-IR Method for Testing Li-ion Batteries

Electrical Measurements of Lithium-Ion Batteries