UNI-T UT677A Battery Internal Resistance Tester

UNI-T UT677A Battery Internal Resistance Tester - Image 2

UNI-T UT677A Battery Internal Resistance Tester

The battery internal resistance tester is a measuring instrument used to measure the internal resistance, voltage, and temperature of rechargeable batteries such as lead-acid batteries and lithium batteries to judge the health status of the battery.

It can also be used as an instrument to measure the ESR parameters of electrolytic capacitors. UT677A uses the AC 4-terminal test method to measure the internal resistance of the battery, which can measure the correct measurement value without being affected by the contact resistance between the test lead, the terminal, and the battery electrode.

The whole machine is high-grade and beautiful, with a wide range, high resolution, convenient operation, convenient carrying, accurate, reliable, stable performance, and strong anti-interference ability. It is an indispensable instrument for battery production, battery installation, equipment production, equipment maintenance, and other scenarios.

Product Datasheet

Category: Battery Quality Tester

Description
Brand

Product overview:UNI-T UT677A Battery Tester

The UNI-T UT677A Battery Tester is a high-precision diagnostic instrument. It measures battery internal resistance, voltage, and temperature with high accuracy. Therefore, engineers and technicians use it to evaluate battery health and detect faults. As a result, it ensures reliable performance in industrial, automotive, and energy applications.

This advanced tester supports multiple rechargeable battery types, including lithium and lead-acid batteries. Moreover, it uses an AC 4-terminal test method for accurate resistance measurement. As a result, this method reduces interference from contact resistance and ensures stable results.

The device delivers fast response time and high-resolution measurements. In addition, users can perform efficient diagnostics in both field and laboratory environments. It features a clear digital display that shows key parameters simultaneously. Therefore, it improves usability and testing efficiency.

The tester stores up to 5000 readings in its built-in memory. Furthermore, users can track historical data and analyze battery performance over time. It also supports PC software and Bluetooth connectivity. Thus, users can transfer data easily and generate reports.

The compact and portable design makes on-site testing convenient. In addition, its durable construction ensures reliable performance in demanding environments.

Features of UT677A Battery Internal Resistance Tester

● Internal resistance test: 0.000mΩ~3.100 Ω

● Voltage test: 0.000V~±71.00V

● Temperature test: -10.0℃~60.0℃

● Fast response: ≤200ms

● Measurement result judgment function

● 5000 pieces of data storage & rechargeable lithium battery

● PC software supported

● Bluetooth APP (Android) supported

Applications of Battery Tester

The UNI-T UT677A Battery Tester is widely used in battery manufacturing, maintenance, and inspection. It is ideal for testing UPS systems, telecom batteries, energy storage systems, and industrial backup power solutions. The device helps improve maintenance efficiency, reduce downtime, and ensure reliable battery performance.

Brand

UNI-T, CHINA

UNI-T Test Equipment Pakistan

UNI-T Test Equipment Pakistan provides reliable solutions for electrical measurement, diagnostics, and electronic testing. The globally recognized brand UNI‑T develops professional instruments used by engineers, technicians, electricians, and electronics professionals. In Pakistan, Sarwar Electronics serves as an official dealer and reseller of UNI-T products, supplying genuine testing instruments to engineers and technical professionals across the country. These tools help users perform accurate measurements, troubleshoot electrical systems, and maintain equipment reliability.

About UNI-T China

UNI‑T (Uni‑Trend Technology Co., Ltd.) is a leading manufacturer of electronic testing and measurement instruments. The company focuses on innovative technology and high-quality manufacturing to support professionals working in electrical, industrial, and electronics environments. Because modern industries require precise measurement tools, UNI-T products combine advanced features with durable design. As a result, engineers can perform reliable diagnostics and measurement tasks in demanding conditions.

UNI-T Product Range

UNI-T offers a wide selection of instruments designed for electrical testing and measurement applications. Popular product categories include:

Digital multimeters
Clamp meters
Digital oscilloscopes
Insulation testers
Power measurement instruments
Electronic testing tools

These instruments allow professionals to measure voltage, current, resistance, and other electrical parameters accurately.

Applications of UNI-T Instruments

UNI-T instruments support many industries that require accurate electrical measurement and diagnostics. Common applications include:

Electrical installation testing
Industrial equipment maintenance
Electronics repair and diagnostics
Power system inspection
Technical training and laboratories

Accurate testing tools help engineers detect faults early and maintain reliable system performance.

Reliable Test Equipment in Pakistan

In Pakistan, Sarwar Electronics provides genuine UNI-T testing instruments for engineers, technicians, and industrial professionals. Access to professional measurement tools helps organizations improve efficiency and maintain electrical safety standards. With continuous innovation and advanced technology, UNI‑T continues to deliver dependable testing solutions used worldwide.