What CSB does

CSB Energy Technology Co., Ltd. is a Taiwan-headquartered manufacturer of Valve-Regulated Lead-Acid (VRLA) batteries and, more recently, lithium-iron-phosphate (LiFePO4) UPS systems, serving stationary power applications across data centers, telecommunications, renewable energy, general-purpose backup, and e-mobility. Founded in 1987 as CSB Battery Co., Ltd. through a joint venture with Shin-Kobe Electric Machinery, the company operates three manufacturing facilities (Taiwan Guantian, Vietnam, with historical Philippines and Shaoguan China plants), six business/regional headquarters (Taipei global HQ; Haltom City, Texas for Americas; Ridderkerk, Netherlands for EMEA; Shanghai and Shenzhen for China), and a distribution partner network spanning 100+ countries, employing approximately 2,300 people worldwide.

The product portfolio centers on proprietary 99.99% pure-lead VRLA-AGM chemistry organized into 20+ specialized series, including UPS, HR, HRL, XHRL, XHRL-FT, XPL, and XHT-FT for high-rate data center backup; RE Series and RE 48V with lead-carbon technology for renewable cycling; XTV, XTV-WT, TPL, MSJ, MSV, and MU for telecom with 10-20 year design life; GP/GPL for general standby; and EVX/EVH for deep-cycle e-mobility. The 2025 launch of PowerBox, a 512Vdc LiFePO4 system delivering up to 300kW per rack with Level-3 BMS, marks the company's entry into lithium-ion. Proprietary differentiators include Lead Carbon Technology, Catalyst 2X with In-Case Formation, and the CSBattSizer sizing software.

CSB is a wholly-owned subsidiary of Japan's Energywith Co., Ltd., having joined that group in May 2020 after a prior stint in the Hitachi Chemical Group (2016-2020). Revenue is generated through hardware sales of batteries via a channel-partner-led distribution model with regional direct-sales support, pricing not publicly disclosed. The buyer base spans enterprise data center operators, telecom carriers, renewable energy integrators, OEMs, and distributors across five primary use-case segments. Certifications include UL 1973:2022 (2025), UL 1989, ISO 9001/14001/45001/50001/17025, IEC 60896-21/22, REACH, RoHS, and NEBS.

Name

CSB

Legal name

CSB Energy Technology Co., Ltd.

Website

https://csb-battery.com

Company type

Private

Founded year

1987

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

CSB Energy Technology is a Taiwan-headquartered manufacturer of VRLA lead-acid and lithium-iron-phosphate batteries for stationary power, serving data center UPS, telecom, renewable energy, general-purpose backup, and e-mobility customers in 100+ countries under Energywith Group ownership.

Ownership category

akta.pro rank

Product category

Industrial Batteries (VRLA & Lithium-Ion Stationary Power)

NAICS

Battery Manufacturing (335910), Battery Manufacturing (33591)

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), Automotive Batteries & 12V/Low-Voltage Energy Storage Manufacturing (IMACAJAJ)

Keywords

• VRLA battery manufacturing
• Stationary power batteries
• UPS battery systems
• Renewable energy storage
• Telecom backup batteries

Headquarters

HQ city

Fort Worth

HQ country

United States

HQ region

North America

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. VRLA Battery Sales: Sale of Valve-Regulated Lead-Acid (VRLA) batteries and related battery products for stationary power applications including data center UPS, telecommunications, renewable energy, and e-mobility

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

CSB Energy Technology Co., Ltd. manufactures Valve-Regulated Lead-Acid (VRLA) batteries using proprietary pure-lead AGM chemistry, organized into application-specific series for data center UPS, renewable energy storage, telecommunications backup, e-mobility, and general-purpose standby applications. The company also produces a lithium-iron-phosphate (LiFePO4) PowerBox system for space-constrained, mission-critical UPS deployments. Batteries are built in Taiwan and Vietnam facilities and sold through a global distribution partner network in over 100 countries.

Product overview

CSB Energy Technology Co., Ltd. is a manufacturer of Valve-Regulated Lead-Acid (VRLA) batteries and lithium-ion solutions. The product portfolio is organized into application-specific battery series: (1) Datacenter UPS batteries including UPS, HR, HRL, XHRL, XHRL-FT, XPL, XPL-FT, and XHT-FT series for uninterruptible power supply applications; (2) Renewable Energy batteries including RE Series and RE 48V systems with lead-carbon technology for high-cycling applications; (3) Telecommunications batteries including XTV, TPL, MSJ, MSV, and MU series for long-duration standby power; (4) General Purpose batteries including GP and GPL series for security, emergency lighting, and medical applications; (5) E-Mobility batteries including EVX and EVH series for personal mobility devices. The company also offers the PowerBox Lithium Ion (LiFePO4) system for space-constrained, mission-critical UPS applications. Supporting these products is the CSBattSizer software tool for battery sizing and selection.

Differentiator

Problem solved

Functional benefit

Brands

• PowerBox: Lithium-iron-phosphate (LiFePO4) high-power UPS solution for space-constrained, mission-critical applications
• CSBattSizer

Products and services

• UPS Series Premium high-power pure-lead VRLA UPS battery series built specifically for uninterruptible power supply applications, sold to data center operators and UPS system integrators.
• HR Series High-rate discharge pure-lead VRLA battery series designed for smaller output UPS and fast-discharge backup applications, for enterprise UPS buyers.
• HRL Series Long-life, high-rate UPS pure-lead VRLA battery series engineered for demanding high-power data-center and critical infrastructure applications.
• XHRL Series Higher-performance variant of HRL delivering greater high-rate output for UPS and data-center needs.
• XHRL-FT Series Front-terminal versions of XHRL offering premium high-rate UPS performance in telecom-friendly front-access configurations.
• XPL Series Large-capacity pure-lead VRLA series for long-duration backup applications requiring large format cells.
• XPL-FT Series Front-terminal pure-lead VRLA battery series engineered for high-rate UPS and data-center standby applications.
• XHT-FT Series (Calor) Pure-lead, high-temperature VRLA battery series built for mission-critical power in harsh environments, featuring In-Case Formation (ICF), Catalyst 2X proprietary catalyst, and PC-ABS plastics for elevated-temperature charging efficiency.
• PowerBox Lithium Ion CSB's first lithium-iron-phosphate (LiFePO4) high-power UPS solution for space-constrained, mission-critical applications, offering 512Vdc output, Level-3 BMS, real-time monitoring, and modular rack design up to 300kW per rack.
• XTV-WT Series VRLA-AGM pure-lead battery for wind-turbine harsh-environment applications, designed for high cycling, extreme vibration, and harsh environmental conditions with operation between -20 to 50°C.
• RE Series VRLA-AGM pure-lead-carbon high-capacity battery with extreme cycle life and long service life, purpose-built for renewable energy, high cycling, and long-life energy storage applications.
• RE 48V Complete 48V VRLA-AGM pure-lead-carbon high-capacity battery string with cabinet and hardware, purpose-built for renewable energy and long-duration applications, delivering 3800 cycles at 50% depth of discharge.
• GP Series General-purpose VRLA battery series designed for applications such as security, emergency lighting, medical devices, and other standby power applications.
• GPL Series Extended-life version of the GP series built for longer service life in general-purpose standby applications, using VRLA-AGM construction with maintenance-free operation.
• EVX Series Durable deep-cycle VRLA pure-lead battery series purpose-built for e-mobility and cyclic energy applications, delivering more than 400 cycles at 100% discharge with capacity from 7.2Ah to 75Ah at 12V.
• EVH Series Upgraded e-mobility battery series offering improved cycle life and higher cycling durability over the EVX line, with capacity from 15Ah to 39Ah at 12V.
• MSJ Series VRLA 2V high-capacity extended-service-life telecom battery series delivering up to 20 years of standby service life, with capacity from 150Ah to 1000Ah at 2V.
• MSV Series VRLA 2V high-capacity extended-service-life telecom battery series for large-format emergency and telecom applications, with design life up to 15 years and capacity from 200Ah to 1000Ah at 2V.
• MU Series VRLA 2V high-capacity extended-service-life telecom battery series building on MSV/MSJ with larger capacity per 2V cell, design life up to 20 years, and capacity from 1000Ah to 1500Ah at 2V.
• TPL Series Front-terminal, long-life telecom pure-lead VRLA battery series engineered for multi-hour runtime in broadband and telecommunications applications, reducing installation space by 40-50% and saving 50% installation time.
• XTV Series VRLA pure-lead series designed for extreme temperatures (-20 to 50°C) for telecom broadband applications in both indoor and outdoor environments, with innovative plate structure to improve service life under harsh conditions.
• CSBattSizer Intelligent battery sizing tool created by CSB for selecting VRLA battery size, featuring standard battery sizing for unknown configurations, runtime calculation for known configurations, and IEEE battery sizing based on duty cycles.

Quantifiable outcome

• Design life of up to 10 years for EVX series, 12 years for XTV/XHRL series, 15 years for MSV series, 20 years for MSJ/MU/RE series in standby service
• +3 more outcomes

Named customers16 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Energywith Co., Ltd. Group (Japan)coreStrategic or Co-development Partner · 1 May 2020CSB became a member of the Energywith Group based in Japan in May 2020. The company changed its name to CSB Energy Technology Co., Ltd. in May 2020 as part of joining this group. Energywith Group is a Japanese energy company that CSB now operates under.

Scale indicators3 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• GS Yuasa: GS Yuasa is a Japanese battery manufacturer producing VRLA, lithium-ion and specialty batteries for UPS, telecom, automotive and renewable energy — overlapping materially with CSB's stationary power and deep-cycle product lines.
• EnerSys: EnerSys is a global leader in stored energy solutions for industrial applications, with a broad VRLA/lead-acid and lithium-ion product portfolio spanning data center UPS, telecom, motive power and renewable energy storage – directly comparable to CSB's stationary power franchise.
• Leoch Battery: Leoch is a Hong Kong/China-based global battery manufacturer producing VRLA AGM, GEL and lithium batteries for UPS, telecom and renewable storage — a direct competitor to CSB across APAC, EMEA and the Americas.
• BAE Batterien: BAE is a German manufacturer of industrial VRLA and Ni-Cd stationary batteries for UPS, utility and railway backup — directly comparable in stationary power with a focus on long-life premium cells similar to CSB's MSJ/MU series.
• East Penn Manufacturing: East Penn is one of the world's largest lead-acid battery manufacturers, producing VRLA AGM batteries (Deka/Unigy lines) used in UPS, telecom, renewable energy and motive applications — direct competition for CSB's core stationary power portfolio.
• C&D Technologies: C&D Technologies manufactures VRLA and lithium stationary batteries for data center UPS, telecom, utility and renewable energy markets — overlapping with CSB's HRL, MSJ and RE product lines.
• FIAMM Energy Technology: FIAMM manufactures industrial VRLA batteries and lithium solutions for UPS, telecom, rail and renewable storage across Europe and globally — a direct competitor to CSB in the EMEA stationary power segment.
• Exide Technologies: Exide is a global lead-acid and lithium battery manufacturer with strong stationary power and industrial offerings for UPS, telecom and solar storage – matching CSB's application breadth in stationary power.

Broad incumbents

• Panasonic Industry (Panasonic Energy): Panasonic is a broad incumbent battery manufacturer with industrial VRLA and lithium product lines serving data center, telecom and e-mobility – overlapping with CSB's UPS and stationary power portfolio as part of a much wider electronics and energy business.

Emerging players

• Discover Energy ( lithium and VRLA stationary): Discover Energy is a North American manufacturer of VRLA and lithium-iron-phosphate stationary batteries for renewable energy, UPS and industrial backup – an emerging specialized competitor where CSB's RE 48V and PowerBox lines compete head-to-head.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/csb-energy-technology
• Facebookfacebook.com/csb.battery

Compliance17 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries5 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 CSB