Global Aircraft Battery Market Size, Share, Growth, Trends, and Global Industry Analysis: By Battery Type (Lead Acid Battery, Nickel Cadmium Battery, Lithium-ion Battery, Solid-state Battery), Application (Auxillary Power Unit, Emergency Power, Propulsion, Others), Aircraft Type (Fixed-Wing, Rotary-Wing, Unmanned Aerial Vehicles, Advanced Air Mobility) and Region Forecast 2020-2031

Aircraft Battery Market size was valued at US$ 1,580.5 million in 2024 and is projected to reach US$ 2,797.7 million by 2031 at a CAGR of 8.5% form 2025-2031. Moreover, the U.S. Aircraft Battery Market is projected to grow at a CAGR of 8.8% CAGR over the forecast period.

The market refers to the segment of the aerospace industry focused on the development, production, and supply of batteries used to power critical aircraft systems. These batteries provide energy for engine starts, emergency backup, navigation, lighting, avionics, and increasingly for electric and hybrid-electric propulsion systems. The market includes various battery chemistries such as nickel-cadmium (Ni-Cd), lithium-ion (Li-ion), lead-acid, and emerging solid-state technologies designed to meet aviation standards for safety, energy density, and reliability.

The market is experiencing steady growth driven by rising aircraft production, increasing commercial aviation traffic, and the shift toward more electric and hybrid-electric aircraft architectures. Manufacturers are investing in lightweight, high-capacity, and thermally stable lithium-ion solutions as airlines and OEMs aim to improve fuel efficiency and reduce carbon emissions. Additionally, ongoing replacements of aging fleets, stricter regulatory requirements for safety, and the expanding demand for unmanned aerial vehicles (UAVs) continue to strengthen market demand. Overall, the market is evolving toward advanced battery systems that support next-generation aircraft performance, sustainability, and operational reliability.

Key Developments

• In October 2025, Saft (by TotalEnergies) announced that its AirLion™ lithium-ion aviation battery successfully passed thermal runaway containment safety testing, a key milestone toward DO-311A certification and improved onboard safety, also reducing aircraft weight compared to traditional lead-acid solutions.
• In June 2025, Safran and Saft revealed they are co-developing a new high-voltage battery system aimed at aviation electrification, designed to deliver greater onboard energy and meet the growing electrification demands of next-generation aircraft.

Aircraft Battery Market Segmentation

Based on the battery type

• Lead Acid Battery
• Nickel Cadmium Battery
• Lithium-ion Battery
• Solid-State Battery

The lithium-ion batteries are anticipated to lead the aircraft battery market, driven primarily by their superior energy density and weight advantages. The single most influential driver supporting this dominance is the aviation industry’s strong focus on weight reduction to improve fuel efficiency and overall aircraft performance. Lithium-ion batteries offer significantly higher energy storage capacity while being considerably lighter than traditional lead-acid and nickel-cadmium batteries, making them highly suitable for modern aircraft platforms. Their ability to support advanced onboard electronics, emergency power systems, and next-generation electric and hybrid aircraft further strengthens adoption. In addition, lithium-ion batteries demonstrate longer life cycles, lower maintenance requirements, and improved charging efficiency, which reduce operational costs for airlines and operators. As aircraft manufacturers increasingly integrate electrification technologies and pursue sustainability goals, the demand for high-performance, lightweight battery solutions continues to rise. Consequently, the weight-efficiency advantage of lithium-ion batteries remains the key driver positioning this segment as the leading contributor within the global aircraft battery market.

Based on the aircraft type

• Fixed-Wing
• Rotary-Wing
• Unmanned Aerial Vehicles
• Advanced Air Mobility

The fixed-wing aircraft are anticipated to dominate the aircraft battery market, driven primarily by their extensive global fleet size and continuous operational demand. The single most influential driver behind this leadership is the high volume of commercial and military fixed-wing aircraft requiring reliable battery systems for engine start, auxiliary power, emergency backup, and onboard electronics. Fixed-wing platforms operate on frequent flight cycles, resulting in regular battery replacement and maintenance needs, which sustains consistent market demand. Additionally, ongoing fleet expansion by commercial airlines, along with modernization programs in military aviation, further strengthens battery consumption in this segment. Fixed-wing aircraft also increasingly integrate advanced avionics and electrified systems, raising dependency on high-performance batteries. As global air travel continues to recover and long-term fleet growth remains strong, the sheer scale and operational intensity of fixed-wing aircraft serve as the primary driver positioning this segment as the leading contributor to the overall aircraft battery market.

Based on the application

• Auxillary Power Unit
• Emergency Power
• Propulsion
• Others

The auxiliary power units (APUs) are anticipated to represent the leading segment in the aircraft battery market, driven primarily by their critical role in routine aircraft operations. The single most influential driver behind this dominance is the continuous need for reliable onboard power during ground operations and engine start-up. Aircraft batteries supporting APUs enable essential functions such as avionics operation, cabin systems, and environmental controls when main engines are not running, reducing fuel consumption and operational costs. With airlines increasingly focused on improving efficiency and minimizing ground-time emissions, dependence on battery-supported APUs has grown significantly. Moreover, frequent aircraft turnaround cycles lead to repeated battery usage and replacement, sustaining consistent demand. As both commercial and military fleets expand and modernize, the reliance on efficient auxiliary power systems continues to increase. Consequently, the operational necessity of uninterrupted and efficient ground power remains the key driver positioning the APU application segment as the leading contributor within the global aircraft battery market.