Automotive Storage Battery segmentation by type distinguishes the chemical and construction families that dominate the market. Lead‑acid batteries, encompassing flooded, sealed‑lead acid (SLA) and advanced‑glass‑mat (AGM) variants, still capture roughly 45 % of global volume due to their low cost and established supply chains, especially in conventional passenger and commercial fleets. Lithium‑ion systems, driven by higher energy density and fast‑charge capability, account for about 35 % of revenue, reflecting premium pricing and rapid adoption in hybrid and electric power‑train architectures. Nickel‑metal hydride (NiMH) batteries, once prevalent in early hybrid models, now hold a marginal 5 % share, limited to legacy platforms and niche markets. Emerging chemistries such as solid‑state and zinc‑air are grouped under advanced types, collectively representing the remaining 15 % of market value, primarily as R&D‑intensive pilots and early‑stage production runs. This type‑based taxonomy clarifies how each chemistry’s cost structure, performance envelope, and regulatory pressures shape its contribution to the overall Automotive Storage Battery market size.