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1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteBy global electric-vehicle battery installations in calendar year 2025, CATL was the clear leader, followed by BYD and LG Energy Solution. CATL and BYD together supplied 55.6% of installed EV battery capacity worldwide. This ranking measures batteries installed in EVs—not factory capacity, revenue, or every kind of battery shipment. Grid-storage companies are covered separately because cell makers and system integrators are measured differently.
How the 2025 battery ranking is measured
“Big battery manufacturer” can mean an EV cell supplier, a producer of stationary-storage batteries, or a company that integrates complete storage systems. The main ranking below uses global EV battery installations during calendar 2025, measured in gigawatt-hours (GWh), as reported from SNE Research data by CnEVPost. Installations are not the same as a manufacturer’s production, shipments, sales, or announced factory capacity.
The global EV battery market reached about 1,187 GWh in 2025, up 31.7% year over year. The figures below are market estimates reported by CnEVPost; rounded shares may not add to exactly 100%.
The 10 largest EV battery manufacturers in 2025
| Rank | Manufacturer | Headquarters | 2025 installations | Global share |
|---|---|---|---|---|
| 1 | CATL | China | 464.7 GWh | 39.2% |
| 2 | BYD | China | 194.8 GWh | 16.4% |
| 3 | LG Energy Solution | South Korea | 108.8 GWh | 9.2% |
| 4 | CALB | China | 62.8 GWh | 5.3% |
| 5 | Gotion High-Tech | China | 53.5 GWh | 4.5% |
| 6 | SK On | South Korea | 44.5 GWh | 3.7% |
| 7 | Panasonic Energy | Japan | 44.2 GWh | 3.7% |
| 8 | EVE Energy | China | 31.3 GWh | 2.6% |
| 9 | Samsung SDI | South Korea | 28.9 GWh | 2.4% |
| 10 | SVOLT Energy | China | 28.5 GWh | 2.4% |
CATL and BYD’s combined share was about 55.6%. The table ranks installed EV battery volume, not total battery-company size across every business line.
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Why CATL and BYD are so far ahead
The two leaders benefit from China’s large home market, deep battery supply chains, high production scale, and strength in lithium iron phosphate (LFP) batteries. Scale supports large vehicle programs and can lower manufacturing costs; it does not by itself establish that a battery is better on safety, lifetime, or performance. The International Energy Agency says LFP represented nearly half of the global EV battery market in 2024, a major industry shift shaping competition entering 2025. See the IEA’s EV battery analysis.
Vertical integration also matters, but the leaders use it differently. CATL supplies a broad set of automakers and serves energy storage. BYD makes batteries for its own vehicles as well as selected external customers and storage applications. That captive demand gives BYD a different source of volume from suppliers whose business depends more heavily on contracts with other automakers.
Profiles of the market leaders
CATL: the largest by EV installations
CATL installed 464.7 GWh of EV batteries in 2025, equal to 39.2% of the global market in the SNE Research figures reported by CnEVPost. The company’s own 2025 announcement separately reported about 661 GWh in lithium-ion battery sales. Those numbers describe different measures: sales across its lithium-ion battery business are not interchangeable with EV installations.
CATL’s strength is breadth as well as volume. It supplies multiple automakers and works across battery cells and packs, energy storage, recycling, and related technologies. Its portfolio includes LFP and nickel-rich batteries, alongside development and commercial initiatives in areas such as fast charging, swapping, and sodium-ion batteries. The company also said it held 30.4% of the global energy-storage battery market in 2025 and led energy-storage battery shipments for a fifth consecutive year; those are company-reported claims, not the EV-installation ranking. Details are in CATL’s 2025 announcement.
Rank #2
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- 【15,000+ Cycles & 10-Year Lifespan】Invest once, save forever. Our premium Grade-A LiFePO4 cells deliver 15,000+ deep cycle life at 60% DOD and over 8,000 cycles at 80% DOD, lasting 10x longer than traditional lead-acid batteries. With a 10-year service life, this battery drastically reduces your long-term cost per cycle. Whether for daily solar storage or weekend camping, it maintains consistent voltage output until fully depleted, unlike lead-acid batteries that dim as they drain.
- 【Fast Charging & Flexible Energy Expansion】Recharge 3x faster than lead-acid options with zero memory effect. Fully charge in just 5 hours using a 14.6V 20A LiFePO4 charger, solar panels, or alternator. Designed for scalability, connect up to 4S4P (4 in series, 4 in parallel) to build massive systems up to 51.2V and 400Ah. Perfect for DIY off-grid solar setups, whole-home backup, or powering high-draw devices like CPAP machines, electric wheelchairs, and outdoor power stations.
- 【Reliable Power for Critical Applications】Engineered for stability in extreme conditions, operating reliably from -4°F to 140°F (-20°C to 60°C) during discharge. Delivers 100% rated capacity even under high loads, making it the trusted choice for saltwater fishing boats, off-road vans, and emergency home UPS. Backed by our dedicated US-based support team, we provide a 24-hour response guarantee for any technical questions or warranty claims, ensuring your power never fails when you need it most.
BYD: a battery maker integrated with an automaker
BYD’s 194.8 GWh of 2025 EV installations put it second at 16.4%. Its vehicle business consumes a substantial amount of its own battery output, so its installed volume should not be read as equivalent to third-party cell sales. The company is strongly associated with LFP and its Blade Battery architecture, and it also sells into stationary storage.
That combination of battery production and vehicle manufacturing can align pack design with the vehicle platform and provide internal demand. It also means BYD’s business model differs from a supplier such as LG Energy Solution, which primarily sells to other automakers.
LG Energy Solution: the largest non-Chinese supplier
LG Energy Solution ranked third, with 108.8 GWh and 9.2% of global EV installations. It serves global automakers and has production operations across South Korea, Europe, and North America. Its experience spans cell formats and vehicle programs, giving it a role in markets where automakers seek suppliers with regional manufacturing and established partnerships.
Regional production is strategically important, but it does not insulate a supplier from automaker decisions. Factory ramp-ups and demand depend on vehicle programs proceeding as planned. The IEA’s 2026 battery analysis describes Korean manufacturers’ expanded US footprint and their significance to European supply chains.
Rank #3
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CALB and Gotion: substantial Chinese challengers
CALB ranked fourth at 62.8 GWh and 5.3%; Gotion High-Tech ranked fifth at 53.5 GWh and 4.5%. Both benefit from China’s large EV market and are active beyond passenger-car batteries. CALB has a presence in commercial vehicles and stationary storage, while Gotion focuses significantly on LFP and has a strategic relationship with Volkswagen. Their international ambitions make them relevant to buyers assessing future supplier options, though a global installation rank does not establish availability or eligibility in a particular country.
SK On and Panasonic: strategically important regional suppliers
SK On ranked sixth at 44.5 GWh and 3.7%, narrowly ahead of Panasonic Energy at 44.2 GWh and the same rounded share. SK On’s business is closely linked to major automaker partnerships and North American expansion. That can support large programs, but also increases exposure to changes in those partners’ EV plans.
Panasonic is a major Japanese supplier known for cylindrical cells and a long-standing role in North American EV supply, including Tesla programs. Its volume share is much smaller than CATL’s, but global volume is not the only measure of strategic importance: vehicle platform fit, regional production, and customer relationships matter too.
EVE Energy, Samsung SDI, and SVOLT
EVE Energy ranked eighth with 31.3 GWh and 2.6%. It is notable in cylindrical cells, commercial vehicles, and energy storage. Samsung SDI ranked ninth at 28.9 GWh and 2.4%; its premium-market and advanced-cell positioning is not captured by volume alone. SVOLT ranked tenth at 28.5 GWh and 2.4%, with automotive programs and LFP products among its areas of activity. Customer programs and production plans can change, so a single year’s installation position should not be treated as a guarantee of future scale.
Rank #4
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EV battery leaders are not the same as storage-system leaders
Grid-scale battery energy storage systems (BESS) use cells, packs, power electronics, controls, and integration services. A cell supplier can ship the battery while another company integrates the complete system. Consequently, BESS rankings vary depending on whether they count cells, complete systems, integrator shipments, or installed projects.
| Measure and source | Company | 2025 figure |
|---|---|---|
| BESS cell shipments; Benchmark data reported by Energy Storage News | CATL | About 121 GWh; 20% share |
| BESS system shipments; Benchmark data reported by Energy Storage News | BYD | More than 60 GWh; about 13% share |
| BESS system shipments; Benchmark data reported by Energy Storage News | Tesla | About 47 GWh; about 10% share |
| BESS system shipments; Benchmark data reported by Energy Storage News | Sungrow | About 43 GWh; about 9% share |
The shipment figures and classifications are reported by Energy Storage News, citing Benchmark Mineral Intelligence. A separate Wood Mackenzie analysis placed Tesla and Sungrow first and second among integrators, BYD third, and Chinese integrators at 76% of the global market. The differing results are not a single like-for-like league table; see Wood Mackenzie’s integrator analysis.
For procurement, distinguish the supplier of cells from the system integrator, power-conversion supplier, EPC contractor, and project owner. Tesla’s Megapack and Sungrow’s PowerTitan, for example, are system offerings; Fluence and Wärtsilä are also important in integration, software, and project services. Those roles cannot be compared directly with EV cell output. Large systems are typically sold through project-specific commercial contracts rather than a universal retail price; location, project size, duration, interconnection, safety approvals, warranty, and service requirements affect the offer.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What a global ranking does—and does not—tell you
Volume is not factory capacity
Announced or nameplate capacity describes what a plant could produce under specified conditions, not what it actually made or installed in a year. The ranking here concerns batteries installed in EVs, so it is not a list of the largest planned factories or the highest-revenue companies.
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- 【Advanced Smart BMS & All-Weather Safety】Equipped with an upgraded 100A Smart BMS, our battery provides comprehensive protection against overcharge, over-discharge, over-current, and short circuits. Unlike standard lithium batteries, it features automatic low-temperature cut-off, preventing charging below 32°F (0°C) to avoid cell damage. Built with stable LiFePO4 chemistry, it eliminates the risk of thermal runaway, ensuring maximum safety for your RV, boat, or home energy system in any season.
- 【Ultra-Lightweight & Perfect Group 31 Fit】Weighing only 24 lbs—70% lighter than comparable lead-acid batteries—this 12V 100Ah battery makes installation and transport effortless. Its compact dimensions (12.9" x 6.7" x 8.5") are a precise drop-in replacement for BCI Group 31 battery boxes. Ideal for upgrading marine trolling motors, RV house banks, or golf carts without modifying existing compartments. Enjoy maintenance-free power with no acid refilling or corrosion worries.
- 【15,000+ Cycles & 10-Year Lifespan】Invest once, save forever. Our premium Grade-A LiFePO4 cells deliver 15,000+ deep cycle life at 60% DOD and over 8,000 cycles at 80% DOD, lasting 10x longer than traditional lead-acid batteries. With a 10-year service life, this battery drastically reduces your long-term cost per cycle. Whether for daily solar storage or weekend camping, it maintains consistent voltage output until fully depleted, unlike lead-acid batteries that dim as they drain.
- 【Fast Charging & Flexible Energy Expansion】Recharge 3x faster than lead-acid options with zero memory effect. Fully charge in just 5 hours using a 14.6V 20A LiFePO4 charger, solar panels, or alternator. Designed for scalability, connect up to 4S4P (4 in series, 4 in parallel) to build massive systems up to 51.2V and 400Ah. Perfect for DIY off-grid solar setups, whole-home backup, or powering high-draw devices like CPAP machines, electric wheelchairs, and outdoor power stations.
- 【Reliable Power for Critical Applications】Engineered for stability in extreme conditions, operating reliably from -4°F to 140°F (-20°C to 60°C) during discharge. Delivers 100% rated capacity even under high loads, making it the trusted choice for saltwater fishing boats, off-road vans, and emergency home UPS. Backed by our dedicated US-based support team, we provide a 24-hour response guarantee for any technical questions or warranty claims, ensuring your power never fails when you need it most.
Global share is not local availability
China-based suppliers dominate the global volume table, but local supply chains differ. The IEA reports that Chinese producers accounted for just over 5% of the US market in 2025, illustrating why a global rank may not predict which products are available or eligible in a given market. Tariffs, incentives, local-content rules, and geopolitical restrictions can all shape regional sourcing.
Volume is not a technology score
Battery buyers also weigh chemistry, cell format, energy density, charging performance, degradation, thermal management, warranty, service, and safety certification. LFP generally has favorable thermal-stability characteristics compared with some nickel-rich chemistries, but pack-level safety depends on design, controls, cooling, manufacturing quality, and system integration. High-nickel chemistries can offer higher energy density, with different material, cost, and thermal-management trade-offs.
Supply chains and execution affect future rankings
Competition depends on more than cell assembly: access to lithium, nickel, cobalt, manganese, graphite, and phosphate, along with cathode and anode production, manufacturing equipment, and recycling, shapes resilience and cost. The IEA reports that China hosts more than 85% of global battery-recycling capacity and discusses CATL-affiliated Brunp’s links to battery-manufacturer feedstock in its 2026 battery analysis.
Future standings can shift with EV demand, automaker program changes, new factories, policy, raw-material prices, and growth in stationary storage. Sodium-ion may diversify some applications, while solid-state remains a development area rather than a major mass-market production category in this 2025 ranking.
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