DC 8~30V Type-c USB Car Battery Voltmeter Charge Level Indicator Lithium Battery Capacity Meter Test Display LED Tester DC 8~30V Type-c USB Car Battery Voltmeter Charge Level Indicator Lithium Battery Capacity Meter Test Display LED Tester Feature: 1. High-brightness LED display: The high-brightness LED display ensures clear reading of data under various lighting conditions. Whether it is day or night, users can easily check the voltage and power status of the battery. 2. Reverse protection: The built-in reverse protection circuit effectively prevents equipment damage caused by reverse polarity of the battery. This function not only extends the service life of the equipment, but also improves the safety of use. 3. Power-off memory function: With power-off memory function, the equipment can automatically save the current test data and setting parameters after an accidental power outage or shutdown. After restarting, users do not need to reconfigure and can directly continue the previous test to ensure the continuity and integrity of the data. 4. Clear display: The LED screen design is simple and intuitive, and the numbers and icons are clearly displayed and easy to read. Whether indoors or outdoors, users can understand the battery status at a glance, and the operation is more convenient. 5. Low voltage flashing prompt: When the battery voltage is lower than the preset threshold, the LED screen will flash a prompt accompanied by an audible and visual alarm. This function can help users detect and deal with low power problems in time, and avoid equipment failures caused by insufficient battery power. 6. Wide range of applications: suitable for high and low power distribution cabinets, display cabinets, assembly line testing, electronic maintenance, electronic DIY and other fields. Product parameters: Voltage measurement range: DC 8~30V Ternary lithium battery (L) measurement: 3S~7S Acid battery (P) measurement: DC 12V, DC 24V Iron lithium battery (F) measurement: 3S~8S Ambient temperature: -10+70 Product size: 47.6*28.7*19.4mm Specifications: Dual USB interface, USB+Type-c interface Display color: red, blue, white Ternary lithium battery settings: Press and hold the button for 2 seconds to enter the settings page: display L03, press and hold the button for 2 seconds, the number L03 flashes (3S), short press the button to select the number of strings to be set, press and hold the button for 2 seconds, the value is always on and saved, wait for 2 seconds to automatically return to the main page, and the settings are completed. Lithium iron battery settings: Press the button for 2 seconds to enter the settings page: short press the button to select the battery type F03, long press the button for 2 seconds, the number F03 flashes (3S), short press the button to select the number of strings to be set, long press the button for 2 seconds, the value is always on and saved, wait for 2 seconds to automatically return to the main page, and the settings are completed. Acid battery settings: Press the button for 2 seconds to enter the settings function: short press the button to select the battery type P12, long press the button for 2 seconds, the number P12 flashes (12V), short press the button to select the voltage to be set, long press the button for 2 seconds, the value is always on and saved, wait for 2 seconds to automatically return to the main page, and the settings are completed. Package list: Battery indicator*1 Wiring*1 _x005F_x000D_