What are the common types of automotive batteries?
2 Answers
Common types of automotive batteries include: conventional batteries, dry-charged batteries, and maintenance-free batteries. Batteries operate using lead-acid reactions and are referred to as lead-acid batteries. Lead-acid batteries feature low internal resistance, stable voltage, and can deliver high current in a short period. The functions of automotive batteries are: 1. Providing starting current to the starter when starting the engine; 2. Assisting the generator in supplying power to electrical devices when the generator is overloaded; 3. Supplying power to electrical devices when the engine is idling; 4. Acting as a large-capacity capacitor to protect the electrical equipment used in the vehicle.
As a seasoned driver with over a decade of experience, I've seen my fair share of car batteries. The most common type is the lead-acid battery, like the wet cell variety that requires regular checks on the electrolyte level and occasional top-ups with distilled water—otherwise, it can dry out in summer and cause starting failures. Later, when I changed cars, I used maintenance-free AGM batteries, known in the trade as Absorbent Glass Mat batteries. Simply put, these use fiberglass to hold the electrolyte, offering better shock resistance and longer lifespan, making them ideal for newer cars with auto start-stop systems. Though pricier, they're hassle-free. There's also the EFB battery, an enhanced version of lead-acid, mid-range in cost and commonly used in start-stop vehicles. Occasionally, I come across lithium-ion batteries for electric vehicles—lightweight and efficient but expensive. When choosing a battery, don’t just focus on price; match it to your car’s needs. Regularly check voltage and terminals to avoid roadside breakdowns and ensure safety.