12V / 24V Automotive Battery Voltage Tester

Connect To 12V Car Battery
When connected to a 12V car battery, different voltages will display different signals:
Switch to 12V
1. 0V-4.5V: The product cannot start, please replace the battery.
2. 4.5V-11.3V: The OK light flashes, and the other lights are off. The higher the voltage, the more frequent the flashing. When it reaches 11.3V, the OK light is always on.
3.11.3V-12V: The low light flashes, and the OK light is on. The higher the voltage, the more frequent the flashing. When it reaches 12V, the low light is on, and the other lights are off.
4. 12V-12.5V: The middle light flashes, and the low light is on. The higher the voltage, the more frequent the flashing. When it reaches 12.5V, the middle light is on, and the other lights are off.
5. 12.5-13.4V: Full beam flashes, center beam is on. The higher the voltage, the faster the flashing frequency. Upon reaching 13.4V, the full beam is on and the other lights are off.
6. 13.4V-14.4V: Good beam flashes, full beam is on. The higher the voltage, the faster the V. Upon reaching 14.4V, the good beam is on and the other lights are off.
7. 14.4V-15.5V: Fault lights are flashing, good beam is on. The higher the voltage, the faster the flashing frequency. Upon reaching 15.5V, the fault lights are on and the other lights are off.

Connect To 24V Car Battery
Connecting to the 24V car battery, different voltage will show different signals: Switch to 24V
1. 0V-4.5V: product can not start, please replace the battery
2. 4.5V-20V: OK light flashes, other lights do not shine. The higher the voltage, thefaster the flicker frequency. When reaching 20V, OK light is always on.
3. 21V-23V: LOW light flashes, OK light is on. The higher the voltage, the fasterthe flicker frequency. When reaching 23V, the LOW light is on and the other lightsare off.
4. 23V-24.5V: MIDDLE light flashes, LoW light is on. The higher the voltage, thefaster the flicker frequency. When reaching 24.5V, MIDDLE light is on, the other lightsdo not shine.
5. 24.5V-26V: FULL light flashes, MiDDLE light is on. The higher the voltage, thefaster the flicker frequency. When reaching 26V, the FULL light is on and the otherlights are off.
6. 26V-27.5V: GOOD light flashes, FuLL light is on. The higher the voltage, the fasterthev. When reaching 27.5V, the GOOD lamp is on and the other lights are off.
7. Greater than 28V: FAULT lights flashing, GOOD lights are on. The higher the voltage, thefaster the flicker frequency. When reaching 28V, the FAULT lights are on and the otherlights are off.

The utility electrical equipment in car , driving habits and other factors will affect the car battery life.