12V/24V Battery Tester for Cars/Electric Vehicles: Measures battery life, battery starting, battery load, and battery charge Reverse Polarity and Overvoltage Protection: Enhanced internal input protection prevents reverse polarity, excessive voltage, and poor contact, use One-click test for multiple battery parameters. Applicable to 12V/24V: A battery failure may simply be caused by a low battery. Avoid blindly replacing batteries. A single test reveals the battery's status and prevents fraudulent activity 2.4-inch High-Definition Color Display: TFT high-definition color display provides clearer function data Part Name: -24 Car Battery Tester Screen Material: 2.4-inch Color Low battery life: 0-60% Normal battery life: 60%-80% Excellent battery life: 80%-100% (The product printed words depending on the batch, but this does not affect use) Color: As Shown Material: ABS Package Contents: 1 * -24 Car Battery Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.