What does the battery 6-qw-45 mean?
3 Answers
The battery 6-qw-45 refers to a 12V 45Ah maintenance-free automotive battery. Below is its related introduction: Introduction to the battery: It refers to a battery that can be reused after being discharged and recharged. There are lead-acid batteries, nickel-iron batteries, and nickel-cadmium batteries, etc. The positive electrode of a lead-acid battery is lead dioxide, the negative electrode is lead, and the electrolyte is a dilute sulfuric acid solution. When discharging (using), the positive and negative electrodes react with sulfuric acid to form lead sulfate. When the concentration of the sulfuric acid solution drops to a certain level, it must be recharged. Function of the battery: It provides a large instantaneous current when starting the car, which is generally tens of amperes or even larger. After the engine is running normally, the main function of the battery is to continuously supply power to the ignition coil, audio system, and other electrical equipment. At the same time, the electricity generated by the alternator recharges the battery, ensuring that the battery does not lose power during use.
Having driven for over twenty years, the most common battery model I've encountered is the 6-QW-45 type. Essentially, this is the battery's ID card. The number '6' typically indicates a 12-volt system, which is standard for most cars. The 'QW' in the middle is usually the manufacturer's specification code, possibly referring to a particular brand or a standardized size. The most crucial part is the '45' at the end, which denotes a 45 ampere-hour capacity. This means the battery can continuously provide 45 amps of current for one hour when fully charged. Don't underestimate this capacity—choosing the wrong one might leave your engine struggling to start, especially in winter when low temperatures make batteries more prone to discharging. I recommend fellow drivers to always match the battery model with their car's manual when replacing it and to regularly check the voltage with a multimeter to avoid getting stranded on the road.
I've encountered countless battery issues at repair shops, and the 6-QW-45 is a common model. Simply put, its label indicates battery specifications. The '6' stands for 12 volts, the standard voltage for cars; 'QW' likely represents specific design dimensions, such as length and height suitable for most sedans; and '45 ampere-hours' reflects the capacity—the higher the number, the more power it stores, ensuring steadier current when starting the engine. As a car owner, remember not to let the battery discharge for long periods and avoid keeping headlights on after turning off the engine. When replacing the battery, don’t just focus on price—ensure the capacity matches, as sizes too large or small can affect lifespan. Regularly maintain and check for oxidation on terminal connections—safety first.
