What Desay Battery does

Desay Battery (legal entity Shenzhen Desay Battery Technology Co., LTD., Shenzhen Stock Exchange ticker 000049) is a vertically integrated Chinese energy storage and battery manufacturer founded in 1999 and headquartered in Huizhou, Guangdong. The company operates through wholly-owned subsidiaries including Huizhou Desay Battery Co., Ltd. (small- and medium-format lithium batteries and ESS integration), Hunan Desay Battery Co., Ltd. (energy storage cells), Huizhou Desay Intelligent Energy Storage Technology Co., Ltd. (ESS solutions) and Desay Battery (Vietnam) Co., Ltd. (overseas manufacturing). Its product portfolio spans the full battery value chain: lithium-ion cells (100 Ah, 314 Ah, 587 Ah LFP), a 43 Ah sodium-ion cell, a solid-liquid state battery exceeding 420 Wh/kg, PACK and RACK modules, commercial and industrial storage, 5 MWh containerized utility-scale ESS, residential storage, UPS battery cabinets, and BMS/EMS software.

The company's commercial model is enterprise B2B across two principal segments: (i) consumer electronics battery supply — including an embedded Apple supplier relationship for iPhone, iPad, Mac, Apple Watch and AirPods, plus battery cells for ByteDance's Doubao AI phone — executed through ATL-cell-based OEM channels; and (ii) energy storage systems sold via direct enterprise sales, OEM/ODM manufacturing partnerships, and utility-scale project deployments in China (Zhangjiakou, Jinhua, Zhoushan, Tai'an, Guizhou, Ningxia, Huizhou) and Europe (200 MWh Finland project with Lehto Group; Bulgarian user-side projects in Sliven and Sofia). Proprietary differentiators include static immersion cooling technology, a proactive safety management system with 30-day thermal-runway advance warning, and TÜV Rheinland certification on the 5 MWh containerized ESS.

Go-to-market is anchored on direct enterprise field sales for large utility-scale and C&I projects, complemented by global OEM/ODM manufacturing services, industry trade show presence (Smarter E Europe, CIBF), and bankability signaling through five consecutive BloombergNEF Tier 1 Global Energy Storage Manufacturer listings (Q1 2025 through Q2 2026). The company runs manufacturing bases in Huizhou, Shenzhen, Longmen, Changsha and Vietnam, an R&D center in Shenzhen, and a representative office in North America. Revenue mechanics are based on custom enterprise quotations per project; pricing is not publicly disclosed.

Name

Desay Battery

Legal name

Shenzhen Desay Battery Technology Co., LTD.

Website

https://desayest.com

Company type

Public

Founded year

1999

Operating status

Operating

Short description

Desay Battery (Shenzhen Desay Battery Technology Co., listed on Shenzhen Stock Exchange as 000049) is a vertically integrated Chinese battery manufacturer producing LFP cells, sodium-ion cells, solid-liquid state batteries, and complete energy storage systems for Apple consumer electronics, utility-scale grid projects in China and Europe, and OEM/ODM partners worldwide.

Ownership category

akta.pro rank

Product category

Energy Storage Systems

NAICS

Battery Manufacturing (33591), Electrical Equipment Manufacturing (3353)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Battery Cells (Li-ion, LFP, Sodium-ion, Lead-acid, NiMH) (IMAGAHAA)

akta.pro secondary industries

Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB), Battery Pack Manufacturing & Module Assembly (EUAFABAI), Battery Management Systems (BMS) & Pack Electronics Manufacturing (EUAFABAJ), Solid-State Battery Materials & Cell Manufacturing (EUAFABAH)

Keywords

• Lithium-ion battery cells
• Energy storage systems
• Battery manufacturing
• Residential energy storage
• Commercial industrial storage

Headquarters

HQ city

Huizhou

HQ country

China

HQ region

Asia

Offices6 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Technology or R&D, Personnel, Infrastructure, Marketing or Sales

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Desay Battery manufactures lithium-ion (LFP), sodium-ion, and solid-liquid state battery cells and integrates them into PACK, RACK, containerized, commercial and industrial, residential, and UPS battery energy storage systems. It also supplies battery cells to consumer electronics OEMs and offers global OEM/ODM manufacturing services through vertically integrated factories in China and Vietnam.

Product overview

Desay Battery operates as a vertically integrated energy storage solutions provider with a comprehensive product portfolio spanning the entire battery value chain. The company offers CELL (battery cells), PACK (battery modules), and RACK (integrated rack systems) as foundational building blocks, combined with end-user solutions including C&I Energy Storage for commercial and industrial applications, Large-scale Container ESS for utility-scale grid storage (5 MWh systems), Residential Energy Storage for homes, and UPS Battery Cabinet solutions. Supporting technologies include BMS/EMS design and integration services, static immersion cooling technology, and an AI-powered proactive safety management system with 30-day thermal runaway prediction. The company produces LFP batteries and is developing advanced technologies including solid-liquid state batteries (420+ Wh/kg) and sodium-ion cells (43 Ah). Global OEM/ODM manufacturing services are also offered.

Differentiator

Problem solved

Functional benefit

Products and services

• CELL (Battery Cells) Standalone lithium-ion (LFP), sodium-ion, and solid-liquid state battery cells in capacities up to 587 Ah, sold as a foundational component for energy storage system integrators and OEMs.
• PACK Battery pack products integrating multiple cells into configured modules for energy storage applications.
• RACK Battery rack products providing integrated energy storage solutions in rack form factor.
• C&I Energy Storage Energy storage solutions designed for commercial and industrial applications, including demand charge management and backup power.
• Large-scale Container ESS Utility-scale containerized energy storage systems (including a 5 MWh TÜV Rheinland-certified system) for grid applications including frequency regulation and peak shaving.
• Residential Energy Storage Home energy storage products for residential applications, enabling solar integration and backup power.
• UPS Battery Cabinet Uninterruptible Power Supply battery cabinets for critical infrastructure protection and backup power applications, including data centers.
• EMS (Energy Management System) Energy Management System software and hardware for monitoring and controlling energy storage installations, sold as part of Desay's one-stop services capability.
• Solid-Liquid State Battery Advanced battery technology combining solid and liquid state characteristics, achieving energy density exceeding 420 Wh/kg, targeted at next-generation energy storage applications.
• Sodium-Ion Cell (43 Ah) 43 Ah sodium-ion battery cell representing Desay's diversification into alternative battery chemistries for energy storage applications.
• Global OEM/ODM Manufacturing Service Original Equipment Manufacturer and Original Design Manufacturer services for global partners, providing custom battery and energy storage solutions manufactured in Desay's facilities.

Quantifiable outcome

• 420+ Wh/kg energy density achieved with solid-liquid state battery
• +3 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature6 records

Partnerships

Three partnerships are on record, tiered core and major.

• GreencellscoreStrategic or Co-development Partner · 17 June 2026Desay ESS and Greencells Form Strategic Alliance for Turnkey Utility. Strategic alliance for turnkey utility-scale energy storage projects in European markets, announced June 17, 2026. Combines Desay's battery technology and manufacturing capabilities with Greencells' project development and deployment expertise.
• TÜV RheinlandcoreOthersTÜV Rheinland certification for the 5 MWh containerized energy storage system, providing third-party validation of product safety and quality for global market compliance.
• Lehto GroupmajorStrategic or Co-development PartnerOngoing 200 MWh grid-scale frequency regulation project with Lehto Group in Finland. Desay Battery provides the energy storage system technology and products for this utility-scale project.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Sungrow: Leading Chinese inverter and ESS system integrator with strong global utility-scale ESS deployment. Comparable to Desay in large-scale container ESS, frequency regulation, and international project pipeline.
• HyperStrong: Chinese ESS system integrator and LFP cell-based solutions provider focused on utility-scale and C&I projects. Directly comparable to Desay across container ESS, EMS integration, and large MWh project execution.
• Hithium: Chinese LFP cell and stationary ESS manufacturer specializing in large-format prismatic cells (314 Ah, 587 Ah class) — directly mirroring Desay's 314 Ah and 587 Ah cell portfolio and utility-scale ESS focus.
• Pylontech: Chinese LFP battery manufacturer specializing in residential and C&I ESS. Directly comparable to Desay across LFP-based rack systems and residential energy storage products.
• EVE Energy: Chinese battery manufacturer producing LFP cells for ESS and EVs, including large-format 280 Ah/314 Ah cells. Highly comparable to Desay across LFP cell portfolio, ESS systems, and consumer electronics battery segments.
• Fluence: Global ESS system integrator (AES-Siemens JV heritage) competing directly with Desay in utility-scale and C&I energy storage projects across Europe, North America, and APAC.
• CALB (China Aviation Lithium Battery): Major Chinese LFP and ternary cell manufacturer serving ESS and EV markets. Directly comparable to Desay in cell chemistry portfolio, ESS system offerings, and BNEF Tier 1 status.

Broad incumbents

• Saft (TotalEnergies): Established European battery manufacturer and ESS system provider owned by TotalEnergies. Comparable to Desay in stationary ESS for grid and C&I applications, particularly in European utility projects.
• BYD: Vertically integrated Chinese battery and EV manufacturer producing LFP cells (Blade Battery) and grid-scale ESS products. Directly comparable to Desay across battery cells and stationary storage, with deeper vertical integration into raw materials and vehicle OEMs.
• CATL (Contemporary Amperex Technology Co.): The world's largest LFP and ternary battery cell manufacturer and a major ESS system provider. Directly comparable to Desay across LFP cells, sodium-ion, and utility-scale ESS, but with materially greater scale and broader chemistry portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Desay Battery