How long does a car need to idle to fully charge the battery?
1 Answers
It takes about 1 hour of idling for a car to fully charge the battery. The charging process of a car essentially involves the engine driving the generator to produce electricity, which is then rectified and stabilized to provide a certain voltage to the battery. This voltage is slightly higher than the battery's voltage, enabling constant voltage charging. Idling refers to the engine running without any load, only overcoming the internal friction resistance of its own components, without outputting power externally. The minimum speed required to maintain stable engine operation is called idle speed, which is one of the five basic operating conditions of an engine. For a well-functioning engine, the idle speed is generally between 550-800 RPM. Here is an introduction to car batteries: Introduction: A car battery, also known as a storage battery, is a type of battery that works by converting chemical energy into electrical energy. Typically, the term 'battery' refers to a lead-acid battery, which is mainly composed of lead and its oxides, with sulfuric acid solution as the electrolyte. Ordinary Battery: The plates of an ordinary battery are made of lead and lead oxides, with the electrolyte being an aqueous solution of sulfuric acid. Its main advantages are stable voltage and low cost; the disadvantages include low specific energy (i.e., the amount of electrical energy stored per kilogram of battery), short service life, and frequent daily maintenance.
