Does Not Disconnecting the Wires Affect Car Charging?
1 Answers
Not disconnecting the wires during car charging does not have any negative effects. In fact, disconnecting them can lead to the loss of some data in the ECU. After the charging connection is broken, restarting the car may result in increased fuel consumption because certain data stored in the ECU will be lost. The car's ECU has a strong learning capability—it can learn the driver's habits and save this data. If the battery's positive and negative terminals are disconnected, the ECU loses the data related to the driver's habits, leading to noticeably higher fuel consumption when driving again. This is why many drivers experience increased fuel consumption after replacing the battery, as some ECU data is lost. It is best to charge the car battery without disconnecting it. Simply connect the positive terminal of the charger to the battery's positive terminal and the negative terminal of the charger to the battery's negative terminal. Precautions for car battery charging: In cold weather, check if the electrolyte is frozen before charging—never charge a frozen battery as it may cause an explosion. Also, check the electrolyte level before charging; do not charge if the electrolyte is insufficient. During charging, measure the electrolyte density and voltage every hour and monitor the temperature.
