AUTDER 12V/24V Digital Car Battery Tester: Comprehensive Battery and Alternator Analyzer with LCD Display and LED Indicators, 23.6-Inch Lead Length

 Reliable Battery Testinga: The AUTDER AD-808 battery tester is designed for testing both 12V and 24V batteries for a wide range of vehicles including cars, motorcycles, trucks, RVs, ATVs, SUVs, boats, yachts, mowers, and even golf carts. The accuracy of the car battery voltmeter is close to 0.01V, providing reliable results  Alternator Charging System Analysis: In addition to determining whether a vehicle battery needs replacement or a jump, the AD-808 can also test the status of the alternator output to prevent damage to the battery from overcharging or incomplete charge  Easy to Use: With its intuitive design, the AD-808 has three gear modes for testing the alternator, 12V battery, and 24V battery respectively. In the middle gear, the LCD screen displays the real-time voltage while the LEDs indicate the alternator status. Shifting to the 12V or 24V gear displays the real-time voltage on the LCD screen and the LEDs indicate battery status Protection Features: The AD-808 comes equipped with reverse-hookup protection, preventing damage to the device in case of an incorrect connection. Additionally, the voltage test range is 4-30V DC, and when voltage is out of range, the screen displays 'LO' (＜4V) or ‘HI’ (＞30V), ensuring protection against over-voltage Package and After-Sales Service: Each package includes the AD-808 battery tester, alligator clamps, a cigarette lighter plug adapter cable, and a user manual. We provide one year of warranty service and 24-hour online support. If you have any questions, please don't hesitate to contact us