Absorbent Glass Mat (AGM) Battery Market

The global AGM battery market size was USD 9.80 Billion in 2025 and is expected to register a revenue CAGR of 8.5% during the forecast period. Market revenue growth is supported by continued regulatory pressure on internal combustion engine fuel efficiency, with the European Union's Regulation (EU) 2023/851 requiring a 15% fleet-average CO2 emissions reduction from 2021 levels for new passenger cars and light commercial vehicles effective from January 2025, sustaining original equipment manufacturer demand for AGM batteries that support start-stop systems and regenerative brake energy recovery, both of which reduce fuel consumption without requiring full vehicle electrification. Automotive start-stop original equipment, automotive replacement and aftermarket, uninterruptible power supply and data center backup, telecommunications backup, and marine, recreational vehicle, and powersports applications are the categories through which AGM battery demand is expressed, with Clarios confirming plans to increase its annual European AGM battery production by approximately 50% from 2026 as part of a EUR 200 million investment programme across its European manufacturing network. These are some of the key factors driving revenue growth of the market.

Clarios, EnerSys, GS Yuasa, East Penn Manufacturing, and Exide Technologies are among the commercial suppliers that constitute the AGM battery market, spanning automotive original equipment and aftermarket batteries, industrial and stationary AGM batteries, and marine and powersports batteries. For instance, in March 2025, Clarios, Wisconsin, announced a USD 6 billion American Energy Manufacturing Strategy, including USD 2.5 billion for advanced battery production such as low-antimony AGM batteries, with a new Toledo, Ohio plant beginning production in 2026 expected to supply 745,000 starter batteries for American-made vehicles. Clarios describes itself as Europe's undisputed AGM market leader, with its Varta Automotive brand starting the engine in seven of every ten new European vehicles equipped with start-stop technology.

However, the European Commission's own regulatory trajectory creates a structural tension for AGM suppliers rather than a stable long-term demand floor, having proposed in April 2025 a three-year compliance-averaging flexibility for the 2025-2027 CO2 targets and then proposed further amendments in December 2025 that would weaken the emissions reduction pathway ahead of the 2035 zero-tailpipe-emission requirement, meaning AGM battery demand tied to start-stop internal combustion platforms is subject to shifting compliance timelines that could accelerate or delay the technology's phase-out with limited advance notice to suppliers who have already committed capital to AGM-specific manufacturing capacity. Lead and antimony price volatility also continues to affect AGM battery production costs across all end-use categories. These factors substantially limit AGM battery market growth over the forecast period.

Based on application, the global AGM battery market is segmented into automotive start-stop original equipment, automotive replacement and aftermarket, uninterruptible power supply and data center backup, telecommunications backup, and marine, recreational vehicle, and powersports applications. The automotive start-stop original equipment segment commands the largest revenue share because AGM batteries are the technology of choice for start-stop systems that must withstand far higher cycling frequency than a conventional flooded lead-acid battery, and because Clarios's own disclosed manufacturing expansion, including its Toledo, Ohio plant and European capacity programme, is specifically sized to this original equipment demand.

The uninterruptible power supply and data center backup segment is expected to register a rapid revenue growth rate in the global AGM battery market over the forecast period. Continued data center capacity expansion driven by artificial intelligence workloads is increasing demand for stationary AGM batteries as a proven, lower-cost alternative to lithium-ion for backup power applications where energy density is less critical than total installed cost and multi-decade supplier familiarity, a dynamic reinforced by EnerSys and other industrial battery manufacturers expanding their AGM product lines for this end use.

• 01What is the global AGM battery market size in 2025 and what CAGR is expected during 2026-2035?
• 02What CO2 emissions targets took effect under EU Regulation (EU) 2023/851 in January 2025 and how do they affect AGM battery demand?
• 03What does Clarios's USD 6 billion American Energy Manufacturing Strategy include for AGM battery production and when does the Toledo, Ohio plant begin production?
• 04What market position does Clarios hold in the European AGM battery market and how large is its planned production capacity increase?
• 05Which AGM battery application segment is expected to register the fastest revenue growth rate and why?
• 06How have the European Commission's 2025 proposals on CO2 compliance flexibility and emissions pathway amendments affected AGM battery demand certainty?
• 07Why is Asia Pacific the leading region for AGM battery revenue and which countries drive that share?
• 08How does rising lead and antimony pricing affect AGM battery manufacturer margins across automotive and stationary end uses?
• 09At what point does the EU's scheduled 2035 zero-tailpipe-emission target begin to structurally reduce demand for start-stop-compatible AGM batteries?
• 10Why does the uninterruptible power supply and data center backup segment matter more to AGM suppliers' long-term growth than automotive start-stop OEM volume alone?

This report covers the global AGM battery market across all major segments and geographic regions. Primary research combines panel conversations with industry experts and is cross-referenced against company annual reports and government agency data. All market size figures use 2025 as the base year with a 2026-2035 forecast period.