The battery internal resistance tester is a widely used tool for battery maintenance and management, applicable to various battery types across multiple chemical systems. It is primarily adapted based on the battery's voltage, internal resistance characteristics, and usage scenarios. The following provides a detailed classification and applicability analysis:
1. Classification by chemical system: ① Applicability to lead-acid batteries: Lead-acid batteries are the most commonly tested scenario for internal resistance testers, as their internal resistance is highly correlated with capacity decay and end-of-life.
Typical applications: Automotive starter battery: Detect the internal resistance of 12V/24V lead-acid batteries to assess starting capability (replacement required if internal resistance >8mΩ). ② Applicability to lithium-ion batteries: When testing the internal resistance of lithium-ion batteries, it is important to consider their low internal resistance characteristics (typically <10mΩ) and dynamic changes.
Typical application: Electric vehicle batteries: Detecting the internal resistance of modules or individual cells in power battery packs (such as 400V/600V systems), and locating aging or faulty units.
③ Applicability of Ni-Cd/Ni-MH batteries: When testing the internal resistance of nickel-based batteries, it is necessary to consider their memory effect and self-discharge characteristics. The increase in internal resistance is usually related to plate vulcanization.
Typical application: aviation battery: detecting the internal resistance of nickel-cadmium batteries used as emergency power supplies for aircraft to ensure compliance with aviation safety standards (such as internal resistance <15mΩ).
④ Applicability of flow batteries: When testing the internal resistance of flow batteries, it is important to pay attention to the impact of electrolyte flow state on impedance. The AC injection method is commonly used to separate ohmic internal resistance and polarization internal resistance.
Typical application: Large-scale energy storage power station: Monitor the internal resistance of all-vanadium flow batteries, optimize electrolyte circulation, and enhance charging and discharging efficiency.
2. Classification by voltage level: ① Low-voltage batteries (<60V) applicable scenarios: 12V/24V car batteries: directly use a portable internal resistance tester (such as Tekman TM2015A) to clamp the terminal post for measurement.
② Applicable scenarios for medium and high-voltage batteries (60V-1000V): High-voltage batteries for electric vehicles: A dedicated high-voltage tester (such as Chauvin Arnoux CA6150) is required, equipped with insulation protection and voltage isolation functions.
Battery for energy storage power station: Reduce risks through modular testing (such as testing the internal resistance of each module first, and then calculating the equivalent internal resistance of the entire group).
3. Classification by application scenario: ① Industrial battery maintenance requirements: high-precision, multi-parameter synchronous detection, supporting data storage and trend analysis.
② Automobile maintenance requirements: rapid detection, simple operation, and low cost.
③ Laboratory R&D requirements: High-frequency sampling, support for electrochemical impedance spectroscopy (EIS) analysis.
④Requirements for outdoor operations: portable and durable, dust-proof and waterproof.
ZC-422A Battery Internal Resistance Tester is designed using the advanced AC discharge measurement method to test voltage, resistance and conduct of cell battery online. It can store , process the detected data and alarm the battery failure. The tester can accurately and effectively discern the condition of cell battery. The instrument saves, queries, deletes and exports the test data. The upper computer software analyzes and displays the test data through various charts and graphs . It automatically generates the battery test report.
Kvtester Electronics Technology Co.,Ltd. is a high-tech enterprise specializing in power testing, testing, research and development, production, and sales of testing equipment. It has been engaged in the electrical testing industry for many years, and its products are of high quality. We welcome customers to come and purchase. Service hotline: 0086-27-81778799, to learn more, visit the official website: www.kvtester.com
