How Long Should You Drive to Normalize the Car After It Runs Out of Battery?
3 Answers
Car can return to normal after charging for about 10 hours when the battery is dead. Battery charging voltage: The car charging voltage is 12V. During the charging process, the voltage mostly ranges between 13.5-14.5V. When charged on the vehicle via the rectifier, it will not exceed 15V. If using a charger, the charging voltage is typically 14V. Battery charging current: During the car charging process, the charging current should not be too large. It is recommended that car owners avoid using fast charging. When charging, use a current that is half the rated charging current and extend the rated charging time by double.
I've encountered a dead battery a few times while driving. Usually, after jump-starting, driving for 20 to 30 minutes can restore normal function. If the battery is aging or the weather is cold, it might take around 40 minutes. Remember to maintain a steady speed above 60 km/h, such as on city roads or highways, as this increases the alternator's efficiency. Once, my battery was completely drained; after jump-starting, I drove around town for 35 minutes, and everything was fine when I returned. For prevention, avoid frequent short trips with stops and starts, as this can lead to accumulated battery drain. Taking a slightly longer drive, like a half-hour trip, once a month can help maintain battery life. In short, 20 minutes is the basic safety line; if that doesn't work, you should check the alternator or consider replacing the battery.
It's really annoying when the car runs out of battery. Once I forgot to turn off the lights, which caused it. After jump-starting, just drive around for 15 to 20 minutes to go shopping or for a spin, and the battery will usually be charged. Don't drive too fast or accelerate sharply; driving smoothly charges the battery faster, whether on the highway or city ring roads. If you only drive for 10 minutes on short trips, the effect might be worse, so try to avoid that. Remember to turn off unnecessary electrical devices like the air conditioner and headlights to reduce the charging load. I also keep an emergency jump starter handy for quick starts before driving to recharge. The key is to drive long enough to ensure the battery is fully charged, avoiding repeated troubles.
