Lithium Battery Fuel Gauge Display Module 1. Four-level battery display 2. Working current: 5mA 3. Working voltage: 3-34V 4. Please be waterproof for outdoor use 5. Working temperature: -20-50 degrees Celsius 6. When the battery level is less than 25%, only the red frame is displayed 7. S1-S8 optional pads can only be connected to one type, and 2 or more simultaneous short-circuiting are not allowed 8. Lithium battery, lead acid, nickel metal hydride, battery can be used to display the battery, as long as the voltage is within the range of the parameter table 9. Battery-type power display, select the corresponding solder pad to detect the voltage of the battery pack corresponding to 1S-8S, which is very convenient 10. How to use: connect the positive and negative terminals of the display board to the positive and negative terminals of the battery under test, and the digital tube will display the real-time battery power