Universal Rechargeable Battery Internal Resistance Tester for Battery Internal Resistance Testing

Product Overview

This portable battery internal resistance tester combines resistance, voltage, and temperature measurement in one field-ready instrument. It applies a 1 kHz AC four-terminal method for low-resistance measurement, delivering 1 uΩ resistance resolution for detailed evaluation of rechargeable cells, battery packs, tabs, interconnects, and related electrical connections. Four resistance ranges cover values from 0.000 mΩ to 3.100 Ω, while voltage measurement extends to ±71.00 V.

The equipment supports incoming inspection, production checks, maintenance programs, laboratory characterization, and quality screening for rechargeable battery applications. It is suitable for battery research laboratories, cell and pack manufacturers, service operations, materials research groups, and technical teams that need to compare electrical condition with measured voltage and temperature.

Designed for repeatable work under defined operating conditions, this unit includes automatic noise-frequency avoidance, configurable PASS, WARNING, and FAIL thresholds, and manual or automatic hold and storage functions. USB data transfer, Bluetooth connectivity, a clear color LCD, and battery-powered operation help teams collect, review, retain, and communicate measurement results efficiently.

Key Features

• Three-Function Measurement Capability: The system measures battery internal resistance, battery voltage, and temperature from one instrument. This gives operators correlated electrical and thermal information without changing to separate devices for routine assessment.

• High-Resolution Resistance Testing: Resistance resolution is 1 uΩ across a four-range measurement structure spanning 0.000 mΩ to 3.100 Ω. The available resolution supports close comparison of low-resistance cells, connections, and conductive paths.

• 1 kHz Four-Terminal AC Method: Internal resistance measurement uses a 1 kHz AC four-terminal test method with a maximum open-terminal voltage of 3 V. Four-terminal measurement is suited to reducing the influence of lead resistance when evaluating low-resistance battery components.

• Adaptive Noise Avoidance: Automatic frequency variation from 920 Hz to 1080 Hz is provided to avoid noise frequencies. This capability supports more stable measurement work where external electrical interference could affect repeatability.

• Broad Voltage and Temperature Coverage: The voltage range is 0.000 V to ±71.00 V in two ranges, with 1 mV resolution. Temperature measurement covers -10.0℃ to 60.0℃ with 0.1℃ resolution using an NTC sensor specified as 10 kΩ at 26℃.

• Fast Readout for Productive Testing: The display updates five times per second, with a 200 ms response time and an approximately two-second measurement time. These timings support practical screening and repeated measurement workflows.

• Configurable Decision Thresholds: PASS, WARNING, and FAIL limits can be preset for measurement evaluation. The equipment helps operators apply a defined acceptance logic during inspection, sorting, maintenance, or controlled test procedures.

• Flexible Result Retention: Manual hold and storage plus automatic hold and storage are available. These functions help preserve readings for review when operators are testing multiple cells or working at locations where immediate recording is not practical.

• Connected Data Handling: A USB interface enables stored data to be uploaded to a computer for saving and printing, while Bluetooth connection is also available. The connectivity options support documented measurement records and downstream result handling.

• Portable Instrument Design: The unit operates from a DC 3.7 V lithium battery and weighs 480 g including the battery. A five-level battery indicator, low-battery reminder, and approximately 15-minute automatic shutdown after inactivity support mobile test work.

Applications

Technical Specifications

Why Choose This Product

• Measurement depth for battery decisions: The combination of 1 uΩ resistance resolution, 1 mV voltage resolution, and 0.1℃ temperature resolution gives technical teams detailed data for comparing battery condition and electrical performance.

• Built for controlled, repeatable use: Automatic 920Hz~1080Hz noise avoidance, four-terminal AC measurement, fast display updates, and an approximately two-second measurement cycle support disciplined routine testing under the stated accuracy-guarantee conditions.

• Practical quality control capability: Preset PASS, WARNING, and FAIL thresholds, together with manual and automatic hold and storage, help convert individual readings into a consistent inspection process.

• Durable operating and safety credentials: The unit is specified for IEC 61010, provides 20MΩ or greater insulation resistance, withstands AC 3700V/RMS between circuit and enclosure, and is specified for operation from -10℃ to 40℃ at 80%RH or less.

• Designed for accountable data workflows: USB upload for saving and printing, Bluetooth connection, and portable battery operation make the equipment a capable investment for teams that need to capture and retain measurement information beyond the test bench.

Contact us for a quote or to discuss a battery measurement solution aligned with your inspection, research, or service workflow.

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