The car battery voltage is around 13 volts, which is normal.
The no-load voltage of the car battery is normal at about 13 volts, the charging voltage is above 11 volts (usually 12V-16V), and it may occur. produce when the charging voltage is lower than this value. The engine cannot start or starts with great difficulty. Once the car is started, the generator begins to produce electricity. The battery voltage for 12 volt vehicles should be between 13.5 and 14.5 and for 24 volt vehicles it should be between 27 and 29 volts.
The battery is an essential part of the car and can be divided into traditional lead-acid battery and maintenance-free battery. Since the battery uses lead-calcium alloy as the grid, the amount of decomposition and evaporation water generated during charging is small. In addition, the housingexterior adopts a sealed structure and very little sulfuric acid gas is released.
Therefore, compared to traditional batteries, it has the advantage of no need to add liquid, docking terminals and long energy storage time.
Daily maintenance of car batteries
1. Use a damp cloth to wipe the exterior of the battery and clean the panel and battery head (i.e. the positive and negative poles) Wipe off dust, oil, white powder and other contaminants that can easily cause leaks. If the battery is frequently rubbed in this way, the white acid-etched powder will not accumulate on the battery's cell head and its life will be longer.
2. Open the battery water filler cap and check if the water level is at the normal position. Generally, there will be upper limit marksure and bottom on the battery side for your reference. If it turns out that the water level is below the lower mark, distilled water should be added. If distilled water cannot be obtained immediately, filtered tap water can be used in an emergency. Don't add too much water, the standard is to add some in the middle of the top and bottom markings.