The lead battery tester allows for quick performance analysis of 6- and 12 V lead batteries. The tester is easily connected to the battery being tested via two terminal clamps. The device can be set for the appropriate test function using two buttons. A 4-digit display shows the terminal voltage, while additional LEDs indicate the performance status. The cold start check reveals weak vehicle batteries. Check the cold start performance of your vehicle's battery in its installed condition. This simulated load test provides information about the battery's performance during the cold season and may identify weak batteries that could fail at low temperatures. The test result can be easily read using three LEDs, allowing for quick and clear interpretation of the test outcome. The voltage display enables monitoring of the battery charging system. The battery voltage is shown at rest, during engine start, and while charging. This allows for a more precise assessment of the voltage and charging supply in the vehicle, in addition to the LED test result display.