The battery internal resistance tester is an instrument used to measure the internal resistance, voltage, and temperature of lead-acid batteries, lithium batteries, and other rechargeable batteries to assess their health status. It can also be used as a meter for measuring the ESR parameters of electrolytic capacitors (for reference only). This instrument uses an AC 4-terminal test method to measure battery internal resistance, which ensures accurate measurements unaffected by contact resistance between the test leads, terminals, and battery electrodes. It also features data storage, data review, alarm, and automatic shutdown functions. The device is high-end in appearance, has a wide measurement range, high resolution, is easy to operate, portable, accurate, reliable, stable in performance, and has strong anti-interference capability. It is an indispensable tool for scenarios such as battery production, battery installation, equipment production, and equipment maintenance.

The battery internal resistance tester is controlled by a microprocessor and equipped with a 16-bit ADC internally to accurately detect battery internal resistance, voltage, and temperature. One of its features is the ability to perform measurements without stopping the UPS system, using AC low-resistance measurement and noise reduction technology. There is no need to halt the normal operation of the tested equipment; measurements can be taken while the equipment is running, significantly reducing testing time. Additionally, it includes features such as data storage, bar graph display, data upload to computers, and wireless measurement and data review via Bluetooth connection to smart devices like mobile phones and tablets.

Resistance Measurement Accuracy

Voltage Measurement Accuracy

Temperature Measurement Accuracy