Cars can indeed charge the battery while driving, which is mainly achieved through two methods. First, when the engine is running, it drives the alternator via a belt to convert mechanical energy into alternating current, which is then converted into direct current by the rectifier to recharge the battery. The charging efficiency will significantly improve when the engine speed exceeds 1600 rpm. Second, vehicles equipped with a regenerative braking system can convert part of the kinetic energy into electrical energy for storage during deceleration. This technology is particularly useful in urban road conditions with frequent braking. The charging system has a built-in voltage regulator that intelligently controls the charging process; it will automatically stop charging when the battery voltage reaches around 14V to avoid overcharging. It should be noted that due to the low engine speed at idle, the charging efficiency is limited, so it is recommended to maintain normal driving to optimize the charging effect. The battery lifespan typically ranges from 1 to 8 years. Daily use should avoid prolonged operation of onboard electrical appliances after the engine is turned off. Regular driving can effectively maintain the battery charge. If the battery is completely depleted, a jump-start is required, and after starting, the vehicle needs to be driven continuously for at least 30 minutes to restore the basic charge level.
