Are Car Batteries Lead-Acid or Lithium Batteries?
2 Answers
Car batteries are lead-acid batteries. Additional information: 1. Battery: The battery is an essential part of a car and can be divided into traditional lead-acid batteries and maintenance-free batteries. Since lead-calcium alloy is used for the grid frame in these batteries, the amount of water decomposition during charging is reduced, and water evaporation is also lower. Additionally, the sealed structure of the casing minimizes the release of sulfuric acid gas. Compared to traditional batteries, they offer advantages such as not requiring any liquid addition, easy connection to terminal posts, and long power storage duration. 2. Lithium Batteries: Compared to lead-acid batteries, lithium batteries have weaker performance in low temperatures and under high current, which is absolutely unfavorable for starting power. Lead-acid batteries perform better in harsh environments, whereas lithium batteries struggle in low-temperature regions. Besides low temperatures, exposure to extreme heat in summer, with engine compartment temperatures reaching 60-70 degrees Celsius, can easily render lithium batteries unusable. In terms of high current performance, the instantaneous current during car startup mostly exceeds 200A, and the performance of lithium batteries rapidly declines under high discharge rates.
I've been driving for thirty years, and car batteries are typically lead-acid batteries, especially in gasoline and diesel vehicles. Lead-acid batteries are affordable and reliable, making them suitable for the high current demands during engine startup. Lithium batteries are lightweight and efficient but are primarily used in electric vehicles and high-end hybrids. Why are lead-acid batteries so popular? They are resistant to both cold and heat, and won't easily freeze in winter. I remember one time when my battery aged, and after replacing it with a new lead-acid one, the strong startup performance was restored. Maintenance is simple—just check the water level and keep the electrodes clean to avoid corrosion. Lead-acid batteries are also recyclable, making them environmentally friendly. In comparison, lithium batteries are more expensive and require protection circuits to prevent overcharging. Lithium batteries may become more common in the future, but for now, lead-acid remains the mainstream choice for regular car batteries. When choosing, just follow the manual's recommendations.
