What are the types of car batteries
3 Answers
Car batteries are lead-acid batteries, mainly composed of positive (negative) plates, separators, electrolyte, case, connecting strips, and terminal posts. Below are the relevant introductions: 1. Composition: The structure of automotive lead-acid batteries mainly consists of positive (negative) plates, separators, electrolyte, case, connecting strips, and terminal posts. 2. Function: When starting the engine, it provides a strong starting current (about 10A) to the starter. When the generator is overloaded, it can assist the generator in supplying power to electrical equipment. When the engine is idling, it supplies power to electrical equipment. The battery is also a large-capacity capacitor that can protect the car's electrical appliances. When the generator's terminal voltage is higher than the electromotive force of the lead-acid battery, it converts part of the electrical energy into chemical energy for storage, which is charging.
Having driven for over a decade, I've found that car batteries mainly fall into several categories: Lead-acid batteries are the most common, affordable and easy to maintain, used in most family cars, including flooded and maintenance-free AGM batteries; Lithium batteries are mostly found in new energy vehicles, lightweight with long lifespan but higher costs; There are also gel batteries for special environments. The choice depends on the vehicle model and usage habits. If you frequently take short trips and are prone to power loss, AGM batteries are a better option. For regular maintenance, remember to periodically check if the electrodes are clean and if the voltage is above 12V, especially in cold weather. Keep in mind that battery life is generally 3 to 5 years, and once starting becomes difficult, it's time to replace it promptly.
While working at the auto repair shop, I've handled various types of batteries. Conventional lead-acid batteries come in two categories: vented types require regular water top-ups, while sealed ones like AGM are maintenance-free and suitable for most city cars. Lithium batteries are exclusively used in pure electric vehicles, offering strong range but requiring specific charging practices. A commonly overlooked issue in practice is that battery size must match the engine power – otherwise, it won't have enough cranking power. When replacing, always refer to OEM specifications rather than cutting corners to save money. Don't forget that battery performance fluctuates with seasonal temperature changes – taking more long drives in summer can extend battery life, while avoiding prolonged idling in winter is advisable. With more electronic devices in modern cars draining power faster, remember to turn off non-essential systems when not in use.
