1. There is residual power
If the car makes a clicking sound when turning on, but it does not ignite, it means the car still has residual power. At this time, remember not to force the ignition several times, otherwise the remaining power will be quickly exhausted. When there is power available, you can push the car to start, but this is a last resort and cannot be used frequently as it will cause some damage to the engine and clutch. Automatic vehicles should especially avoid using this method to start.
2. There is no power
When the ignition cannot start, the most commonly used method is to use the battery wire to "make match fire,” which is the case. called borrowing a car to connect the wire. It's not easy to use it if there is no car nearby to borrow electricity.electricity.
3. Find the reason
This situation is very easy to solve When the vehicle does not start for a long time, on the one hand, because there are a large number of problems. electronic devices inside the vehicle that consume a small amount of electricity. Although they are small, they can't bear to add a small amount. On the other hand, the battery structure also causes the car battery to self-discharge. When the vehicle temporarily fails to start, the vehicle will lose power.
There are generally two standards for automotive voltage: 12 V and 24 V. Of course, some special vehicles are not included in the discussion.
General domestic passenger cars are generally powered by 12V batteries. When starting, the voltage will drop depending on the energy storage state of the battery and the internal resistance of the battery.has battery. Voltage drop is inversely proportional to voltage. energy storage condition, and the internal resistance of the battery is directly proportional.
Generally, the lowest voltage when starting can reach around 9-10V, which means 9-12V is possible.
The charging voltage of a passenger car generator generally does not exceed 15.3 V and is automatically adjusted by the generator regulator.