English 
how to install voltage gauge
First introduce the purpose of the lower voltmeter: if the car is powered on and not started, it is the voltage of the battery. The normal value is 12.2-12.8v. Pay attention if it is lower than 11.6v. Turn off the electrical appliances on the car as soon as possible and start the engine immediately to charge. If the value is lower than 10V, it may not start. After the car is started, it is the generator voltage. The normal value is 13.4-14.8v. If it is lower than 13.4v, the battery cannot be charged. Check the abnormal load of the generator belt and vehicle electrical appliances. If it is higher than 14.8V, the power generation is too large, which will damage the battery and vehicle electrical appliances. Check the generator voltage regulator It can be seen that it is still necessary to install an on-board voltmeter The voltmeter is powered by acc. insert the key, the voltmeter starts, remove the key, and the voltmeter closes.
The voltmeter shows 12V. Compared with the multimeter, this voltmeter is 0.1V higher. In fact, the voltage is only 11.9v. First, we should open the central control panel, take an empty key from the side of the double flash lamp, control a hole in the black key and put it into the voltmeter. The voltmeter and the key are flat and feel like a whole. Fix the circuit board with hot melt adhesive and fix the wires by the way. There is no difficulty in this. All you need to prepare is a woodworking knife, a soldering iron and a multimeter (the multimeter is to help you find the ACC power supply).
In addition, if the car is powered on and not started, it is the voltage of the battery. The normal value is 12.2-12.8v. If it is lower than 11.6v, pay attention. Turn off the electrical appliances on the car as soon as possible and start the engine immediately to charge. If the value is lower than 10V, it may not start. After the car is started, it is the generator voltage. The normal value is 13.4-14.8v. If it is lower than 13.4v, the battery cannot be charged. Check the abnormal load of the generator belt and vehicle electrical appliances. If it is higher than 14.8V, the power generation is too large, which will damage the battery and vehicle electrical appliances. Check the generator voltage regulator.
Get a Quote / Info