What are the functions of car battery tester?

The role of a car battery tester encompasses several key aspects as follows:

One: Rapid Battery Status Detection

A car battery tester is capable of swiftly measuring critical parameters of the battery, such as voltage, internal resistance, and connection resistance, thereby providing users with a quick understanding of the battery's operational status.

Two: Assessment of Battery Health

1. Cold Cranking Ability Evaluation: The tester can measure the battery's Cold Cranking Ampere (CCA), a crucial indicator for assessing a car battery's starting ability in low temperatures. By comparing the battery's labeled CCA value with the conductance CCA value measured by the tester, one can judge whether the battery's cold cranking ability meets the standard.

2. Conductance Value Testing: The tester infers the battery's chemical reaction capability and capacity changes by measuring its conductance value, thereby assessing the battery's health status. Conductance value is linearly related to battery capacity, and as battery capacity decreases, conductance value also decreases accordingly.

Three: Fault Warning and Alarm

1. Over-limit Alarm: When the battery's internal resistance or voltage exceeds preset thresholds, the tester will issue an alarm signal, alerting users to potential battery issues.

2. Misoperation Prompt: The tester features a misoperation prompt function. In cases of misoperations such as reverse polarity, it will sound an alarm and stop discharging to protect the instrument and battery from damage.

Four: Data Management and Analysis

1. Data Storage and Export: The tester is usually equipped with internal memory capable of storing a large amount of test data. These data can be exported to a computer via a USB interface for further data analysis and processing.

2. Intelligent Analysis Software: Some testers are equipped with powerful computer-based intelligent battery status analysis software, which can automatically analyze and judge the battery's "degradation" status, form a historical record database, and describe the battery status curve. Additionally, it can perform comparative analysis on batteries within the same group and manage all batteries at different levels.

Five: Applicability to Multiple Battery Types

Car battery testers are applicable to various types of automotive cranking lead-acid batteries, including conventional lead-acid batteries, EFB, AGM flat-plate batteries, gel batteries, etc. This broad applicability makes the tester indispensable for meeting the testing needs of different vehicle models and battery types.

In summary, car battery testers play a crucial role in rapidly detecting battery status, assessing battery health, providing fault warnings and alarms, managing and analyzing data, and being applicable to multiple battery types. They are indispensable tools in vehicle maintenance and repair.