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voltage gauge reading high
What is the reason why the vehicle voltage gauge reading is too high? Why? After the car is lit, the voltmeter shows a high value and the circuit is hot. If it takes a little longer, the wire will be burned.First, use a multimeter to measure the real voltage value of the battery when starting. The normal voltage value of a single battery is about 2.6V lower than the battery voltage when starting (because the starter consumes a large part of electricity). If the voltage value is normal, consider the fault of the instrument itself; If the voltage is high, check whether the generator itself (regulator) is damaged. If the alarm is too high, consider looking at the generator voltage regulator.
The charging of automobile battery is divided into main charging and floating charging. Generally, the primary charging of lead-acid battery is proposed to be the main charging, which will be changed to floating charging after reaching the rated voltage. When the floating charging makes the battery voltage rise to about 115% of the rated value, the charging device shall be turned off to stop charging. If the battery voltage is too high during the initial installation of the battery, it may be overshoot. If the over-voltage exceeds 15% after the battery is loaded and used, the generator voltage regulator may be damaged, causing the charging voltage to continue charging after exceeding the specified value, and eventually over-voltage occurs.
The voltage of automobile battery is above 13.5V, and the performance of generator is normal; The battery voltage is 13.2v-13.5v, and the performance of the generator is ordinary; The battery voltage is 13.0v-13.2v, and the generator performance needs attention; When the battery voltage is above 13V, the performance of the generator is abnormal, and it shall be tested in the factory immediately. The other is to detect the battery voltage data analysis results when the headlamp and air conditioner are turned on: when the battery voltage is more than 14.6v, the generator performance is normal; The battery voltage is 13.4v-14.6v, and the performance of the generator is ordinary; The battery voltage is 13.2v-13.4v, and the performance of the generator needs more attention; When the battery voltage is above 13.2v, the performance of the generator is abnormal, and it shall be tested in the factory immediately. If the pulse generator of anti vulcanization and de vulcanization is installed when the automobile battery is just put into use, the capacity restorer of Jinhai lead-acid battery will remove and prevent the generation of plate sulfide all year round, maintain the capacity of automobile battery and double the service life of automobile battery.
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