Electric Bus Battery Pack Market Size, Share & Industry Analysis, By Propulsion (Battery Electric Vehicles and Plug-in Hybrid Electric Vehicle), By Battery Chemistry (Lithium-iron Phosphate, Nickel Cobalt Aluminum Oxide, Nickel Cobalt Manganese, and Others), By Power Output (Up to 250 KW and Above 250 KW), and Regional Forecast, 2026-2034

The global electric bus battery pack market size was valued at USD 4.91 billion in 2025 and is projected to grow from USD 5.53 billion in 2026 to USD 14.37 billion by 2034, exhibiting a CAGR of 12.68% during the forecast period.

The electric bus battery pack market concerns the deployment of specially devised solutions for energy storage in electric buses (e-buses) to provide zero-emission public transport. Battery packs are generally of lithium-ion, lithium iron phosphate (LFP), or solid-state designs, tailored to provide high energy density, a lengthy lifespan, and rapid charging to withstand the demanding operating needs of urban and intercity bus fleets.

In September 2024, CATL unveiled new power batteries of an extra-long lifespan for electric buses, the latest product of its commercial vehicle battery brand Tectrans, or Tianxing. The world's leading Chinese power battery manufacturer unveiled at a launch ceremony the CATL Tectrans Bus Edition, describing it as a bespoke solution to the electric bus sector. 

Electric Bus Battery Pack Market Driver

Rising Urbanization and Public Transport Demand to Drive Market Growth

Urbanization and increasing demand for public transport are fueling the growth of the electric bus battery market, as cities are searching for sustainable, efficient, and zero-emission transit options. Rising passenger numbers and increasing urban infrastructure are motivating public transport agencies to adopt electric buses powered by high-capacity battery packs.

In June 2025, BYD unveiled in Hamburg, at the UITP Summit 2025, the intercity Low Entry version B13.b. 13.2 meters in length and powered by BYD’s self-developed Blade Battery technology (in cooperation with BorgWarner), the BYD eBus B13.b has a maximum 560-kWh battery capacity.

Electric Bus Battery Pack Market Restraint

High Initial Costs to Restrain the Market

Higher initial expenditure is hindering the growth of the electric bus battery pack market, as electric vehicles and high-capacity battery sets are much costlier in comparison to conventional diesel vehicles. This initial expenditure, including bus purchase and charging infrastructure, can hamper adoption, mostly in countries that are sensitive to pricing and developing nations, even though longer-term cost savings from operating are realized.

Electric Bus Battery Pack Market Opportunity

Technological Advancements in Batteries to Create Opportunity

Technological advancements in batteries are creating significant opportunities for the electric bus battery pack market, as improvements in energy density, fast-charging capability, and lifespan enhance operational efficiency and reduce the total cost of ownership. These innovations make electric buses more viable for urban and intercity transit, accelerating their adoption worldwide.

In July 2025, Panasonic Energy started mass-producing 2170 cylindrical battery cells at a new plant just outside Kansas City. It will create an annual production capacity of around 32 GWh. The Kansas Factory is Panasonic’s second EV battery production site in the US. The company’s Nevada Factory in Sparks, Nevada, has been operating since 2017 and has a current annual capacity of approximately 41 GWh.

Key Insights

The report covers the following key insights:

• Recent Advancements in the Electric Bus Battery Pack Market
• Key Industry Trends
• Regulatory Landscape for the Electric Bus Battery Pack Market
• Key Industry Developments (Mergers, Acquisitions, and Partnerships)
• Impact of COVID-19 on the Electric Bus Battery Pack Market

Segmentation

Analysis By Propulsion

The market by propulsion covers battery electric vehicles and plug-in hybrid electric vehicles. Battery electric vehicles are the dominant segment in the market. The battery pack for the electric bus market is spurred by the widening adoption of battery electric vehicles (BEVs) in public transit. Increasing government efforts, more stringent emissions standards, and zero-emission bus incentive policies are motivating fleet electrification.

Plug-in hybrid electric vehicles are the second dominant segment in the market. The plug-in hybrid electric vehicle (PHEV) segment in the electric bus battery pack market is gaining traction as it combines an internal combustion engine with an electric powertrain, offering extended range and flexibility compared to fully electric buses.

Analysis By Battery Chemistry

Based on battery chemistry, the market is divided into lithium iron phosphate, nickel cobalt aluminum oxide, nickel cobalt manganese, and others. Lithium iron phosphate is the dominating segment in the market. The lithium iron phosphate (LFP) is the dominant sector of the electric bus battery pack market due to its longer cycle life, high thermal stability, cost-competitiveness, and high level of safety.

The Nickel Cobalt Manganese (NCM) segment in the electric bus battery pack industry is increasing due to NCM batteries having high energy density, allowing longer driving distances for electric buses.

Analysis By Power Output

Based on the power output, the market is divided into up to 250 KW and above 250 KW. The up to 250 kW segment is the largest in the electric bus battery pack market, as this capacity range meets the energy and power requirements of most urban and city buses.

The above 250 KW segment is the second most dominant segment in the market. The above 250 kW segment is leading the electric bus battery pack market due to intercity, long-range, and high-passenger-load buses requiring high-capacity batteries.

Regional Analysis

By region, the market is divided into North America, Europe, Asia Pacific, the Middle East & Africa, and Latin America. 

The electric bus battery pack market in North America is growing due to increasing adoption of electric buses in public transit, driven by government incentives, emission reduction targets, and stricter environmental regulations. Investments in charging infrastructure, declining battery costs, and rising urbanization are also accelerating market growth in the U.S. and Canada.

In April 2025, MAN Truck & Bus officially began series production of battery packs for electric buses and electric trucks at its Nuremberg plant. The proceeds from the new funding will be used to fund greater in-house value creation and expanded capacity. Even though batteries are still assembled from modules, the plant will begin to produce the modules in-house.

The electric bus battery pack market in the Asia Pacific is growing due to rapid urbanization, increasing government initiatives for clean public transportation, and high adoption of electric buses in countries such as China, India, and Japan. Investments in charging infrastructure, declining battery costs, and technological advancements in battery chemistry are further boosting market growth in the region.

Key Players Covered

The global electric bus battery pack market is fragmented in terms of the number of providers. Various market initiatives and R&D activities are anticipated to drive market growth. In August 2021, BYD (Build Your Dreams) announced that the Los Angeles Department of Transportation ordered 130 of its battery-electric K7M buses, the largest single order of battery-electric buses to date in the U.S.

The report includes the profiles of the following key players:

• CATL (China)
• WattEV (U.S.)
• Hitachi (Japan)
• LG Energy Solution (South Korea)
• SK Innovation (South Korea)
• XALT Energy (Singapore)
• Tesla (U.S.)
• BYD (China)
• Samsung SDI (South Korea)
• Panasonic (Japan)
• Proterra Inc. (U.S.)
• Akasol Ag (Germany)
• ABB (Switzerland)
• Siemens (Germany)

Key Industry Developments

• In August 2023, Siemens AG agreed to acquire Heliox, a leading technology company from the Netherlands that is focused on fast charging solutions for e-Bus and e-Truck fleets and passenger vehicles. The deal will supplement Siemens’ current eMobility charging portfolio with products and solutions for DC fast charging targeted at eBus and eTruck fleets. Heliox’s offering will further deepen Siemens’ reach into markets, mainly Europe and North America, and enhance competence in power electronics. The deal is conditional upon customary regulatory approval.
• In May 2022, Otokar chose the Busworld Turkey to unveil the 18-meter version of its e-Kent. The e-Kent Articulated has a length of 18.7 meters and can be equipped with a maximum battery capacity of 560 kWh.