The best lead-acid battery depends on the application, required capacity, and budget. Some popular brands known for quality lead-acid batteries include Trojan, Exide, and Yuasa.
Limited energy density: They have a lower energy density than lithium-ion batteries, resulting in a lower capacity and shorter runtime. Maintenance requirements: Lead acid batteries require periodic maintenance, including electrolyte level checks and occasional equalization charging. Applications
Lead acid batteries comprise lead plates immersed in an electrolyte sulfuric acid solution. The battery consists of multiple cells containing positive and negative plates. Lead and lead dioxide compose these plates, reacting with the electrolyte to generate electrical energy. Advantages:
Lead Acid — most economical for larger power applications where weight is of little concern. The lead acid battery is the preferred choice for hospital equipment, wheelchairs, emergency lighting and UPS systems. Lithium Ion (Li‑ion) — fastest growing battery system. Li‑ion is used where high-energy density and lightweight is of prime importance.
Disadvantages: Heavy and bulky: Lead acid batteries are heavy and take up significant space, which can be a limitation in specific applications. Limited energy density: They have a lower energy density than lithium-ion batteries, resulting in a lower capacity and shorter runtime.
According to Consumer Reports, AGM batteries are 40 to 100% more expensive than lead acid ones, but can tolerate discharging better. (Those are best if your vehicle sits for longer periods of time.) They’re also better for cars with high-powered stereo setups or other extra electrical demands.