Description: Car Battery Tester: This car battery tester analyzes the battery conditions through battery tests and load tests, providing a reliable analysis basis for battery maintenance. Multifunction: The main functions of the auto battery load tester include start up test (load testing), car battery test, pre charging check, charging test, generator test, etc. Voltage test range: 9V-30V can be tested. It supports two modes of loading the battery in the car and not loading it. 12V 24V Battery and Alternator Analysis: The automotive alternator tester will automatically identify 12V or 24V batteries, suitable for 12V and 24V charging system, such as for vehicles, forklifts, hybrid cars, SUVs, pickups, boats, trucks, RVs, motorcycles, travel trailers golf carts. 7 LED Indicators: The 12V and 24V auto battery analyzer is ideal for home and commercial use, with seven LED indicators showing the conditions of the battery and alternator, green for fully charged, orange for medium electricity, red for low electricity. Durable Design: This auto battery tester checker has reversing polarity protection and overvoltage protection to prevent batteries and devices damaging caused by misuse, and the pure copper wire has excellent conductivity and high sensitivity. Antislip design on both sides, flexible use even with gloves on. Specification: Material: ABS Voltage range: 9V-30V Size Chart: 14cmx5.3cmx1.7cm/5.51inchx2.09inchx0.67inch Package Includes: 1 Piece 12V 24V Car Battery Alternator Tester