What does battery undervoltage mean?

[HannahRose]

Battery undervoltage refers to the battery providing a voltage lower than the rated value. Consequences of battery undervoltage: The general meaning of undervoltage is as above, but for micro pumps such as electric micro vacuum pumps/micro water pumps/micro air pumps/micro submersible pumps, undervoltage is not limited to voltages below -15%. If the load is light, it can even be much lower. The consequence of undervoltage is a weak battery, making the motor unable to operate. Car battery lifespan: The normal service life is about 2-3 years, and with careful use, it can last 3 to 4 years, covering a mileage of about 60,000 to 90,000 kilometers. If you notice that the battery is not charging properly or the starter is weak, and the headlights are significantly dimmer, the battery should be removed and charged for 12-24 hours with a charger. If the problem persists and the mileage has exceeded 50,000 kilometers, and the generator is functioning properly, it may be time to consider replacing the battery.