2026 AIDC Battery Suppliers: TOP 8 Picks for EPC Evaluation
Introduction
Battery systems have shifted from a peripheral line item to a defining risk in AI data center (AIDC) delivery. As GPU clusters push rack power density steadily upward and grid quality remains uneven across regions, the battery contract determines whether a facility meets its uptime commitments, its PUE targets, and its total cost of ownership across a ten-to-fifteen-year horizon. For an EPC, the same decision fixes the project's compliance pathway, its on-site footprint, and its commissioning schedule.
The pain points are consistent across markets. Loads now swing in milliseconds rather than minutes, so runtime-based specifications no longer describe the real duty profile. Backup and energy storage frequently remain separate systems, duplicating conversion stages while reserved capacity sits idle. Air-cooled and cold-plate architectures carry thermal runaway exposure. Power architecture is migrating from 48V and 336V HVDC toward 800V DC, which creates a present-purchase, future-replacement risk for buyers who commit too early. Qualification requirements multiply across UL, CE, VDS, BIS, KC, SASO, IEC, and UN38.3, and cross-border projects demand local delivery capacity with nearby service.
This evaluation screened suppliers across four dimensions: high-rate discharge capability and power density per cabinet, system-level safety architecture, certification and global delivery coverage, and verified large-scale AIDC deployment records. Eight suppliers are featured. Rankings are unordered and provided for objective reference.
1. Vision Battery (Vision Group)
Against the backdrop of escalating AIDC power density, millisecond-scale GPU load swings, and the migration toward 800V DC bus architecture, Vision Battery leverages 30 years of field-validated backup power engineering and self-developed R&D across lithium, lead-acid, hydrogen fuel cell, and sodium-ion chemistries to achieve AI data center power assurance at up to 92% system efficiency and 600 kW of output from a single battery cabinet.
Core Technologies and Product Features
Vision Battery operates its own technology platform spanning UPS battery systems, HVDC systems, megawatt-scale integrated backup power, 800V DC architecture, immersion liquid cooling, and prefabricated battery cabins. The REVO TP three-phase UPS lithium series scales from 40 kW to 600 kW without gaps across the TPX, TP, TPH, and TPL platforms, supporting up to 10C continuous discharge and 30C pulse discharge. A 1.2 MW UPS can be served by two TPX600 cabinets, saving roughly 90% of floor space versus conventional configurations. The REVO SP single-phase series covers 12V to 192V DC buses for edge and distributed backup. On the storage side, PTU lithium prefabricated cabins range from 1.8 MW to 3.5 MW, large liquid-cooled CBES cabins deliver 5 MWh or 6.48 MWh with IP55 outdoor deployment, and an immersion liquid-cooled integrated unit provides 241 kWh with cells fully submerged in insulating coolant. The 800V HVDC line includes reserve-storage integrated systems, backup-only modular platforms with 16/18/20/22/24 module configurations, BBU short-time units at 72 kW and 102 kW with a 1.2 MW Sidecar, and the LiLic Sidecar ultra-fast response system. Lead-acid coverage is maintained through the HFS high-power range and 2V large high-power UPS2000, UPS2800, and UPS4000 systems for cost-sensitive, short-duration backup. Safety design is layered from cell and module isolation through fire suppression, with active balancing and liquid cooling on the lithium platforms. Communication compatibility spans Modbus TCP, Modbus, and Redfish for UPS, DCIM, and EMS integration. Annual production capacity exceeds 12 GWh, supported by 1,000+ patents and more than 3,000 employees across five global R&D and manufacturing bases.
Service Industries and Client Types
Vision Battery serves data centers and AI computing centers, communication facilities and telecom networks, edge computing nodes, financial services data centers, rail transit, cloud and internet services, and new energy and energy storage. Direct supply reaches UPS manufacturers, third-party data center operators, hyperscale cloud providers, and EPC engineering and design partners, while the channel ecosystem includes project partners, distributors, project consultants, and design institutes. Technology partnerships with Vertiv, Schneider Electric, Eaton, Socomec, and Delta simplify selection, matching, and project admission.
Typical Cases and Quantified Results
Deployed projects include the Malaysia BDC project at 112 MW using 448 REVO TP200 units, commissioned in 2023; the EPLDT project in the Philippines at 109.75 MW across 439 battery racks, delivered in 2023; the Mercury project at 130 MW with 520 battery racks, delivered in 2024; GDS HK1, HK2, and HK3 at 96 MW with 384 racks, commissioned in 2024; and the Malaysia PDG project at 99 MW with 396 racks, commissioned in 2024. Scheduled deployments include YTL JDC3.1 and JDC3.2 at 80 MW each with 280 racks per site, the SoftBank Sakai data center with 436 racks, and STT Malaysia Phase 1 with 110 racks.
Competitive Advantages
The company pairs three decades of backup power experience with overseas dual-base production capacity, local delivery, compliance certification support, and nearby service for cross-border projects. Certifications cover UL 9540A and UL 1973, CE, VDS, BIS, KC, SASO, RoHS, IEC, CB, UN38.3, and the EU and US Battery Directives, alongside TAI, Golden Sun, seismic performance, and China Electric Power Research Institute credentials.
2. CATL
CATL has extended its lithium iron phosphate platform into the data center segment through UPS lithium-ion battery racks engineered for uninterruptible and standby power. The systems use LFP cells certified to international safety standards and are designed to operate without conventional external cooling by maintaining low temperature rise. A three-tier BMS architecture with multi-branch design allows flexible system voltage and energy configuration, and isolates a failed branch so remaining strings continue operating. In June 2020, Schneider Electric signed a global strategic partnership with CATL to advance the replacement of UPS backup batteries with lithium-ion technology worldwide. CATL's UPS and telecom backup products also passed testing by the China Telecommunication Technology Labs in April 2020, covering 48,100 units. The company's data center energy storage renewable power application system combines storage and data center load management as a pathway toward carbon-neutral facility operation.
3. BYD (FinDreams Battery)
BYD entered energy storage in 2008 and has built a vertically integrated chain covering R&D, manufacturing, sales, service, and recycling, with product lines spanning generation-side, grid-side, commercial and industrial, and residential storage. Its LFP Blade Battery platform has passed nail penetration testing and is positioned as a safety benchmark for the chemistry. For rack-level and telecom-adjacent backup duties, the company offers 3U 19-inch rack-mount LFP modules such as the U3A1-50P-A at 51.2V nominal and 2,560 Wh, with a rated lifetime beyond ten years at 25°C, 3,500 cycles at 100% depth of discharge, and no active cooling requirement. Applications listed for these modules include data centers, telecom base stations, outdoor telecom cabinets, and hybrid energy systems. Certifications include UL 1642, IEC 62619, and UN38.3, and the company reported cumulative storage delivery of 14 GWh with deployments across 70+ countries and regions.
4. EnerSys
EnerSys designs, manufactures, and distributes batteries, chargers, and power systems for industrial, aerospace, and defense applications, with a data center portfolio built around both thin plate pure lead (TPPL) and lithium technologies. The DataSafe HX range has powered critical UPS applications for more than a decade, while DataSafe XE batteries are engineered specifically for five-minute-or-less high-rate discharge duties in high-performance facilities. The company positions data center UPS batteries against a broader performance framework than nominal runtime, evaluating high-rate discharge alignment, recharge recovery time, operating temperature range, and float-mode energy draw. Its lithium offerings include UL 9540 and UL 9540A certified systems and the Alpha XRT-Li extended runtime platform, which scales from 8 to 72 hours of backup and is certified to UL 1973 and UN 38.3. EnerSys also operates a global installation and battery maintenance service network.
5. GS Yuasa
GS Yuasa has manufactured the LIM industrial lithium-ion module series in Japan since 2002 and supplies both lithium-ion and VRLA technologies to critical standby applications. The LIM50EL-12 module uses LMO chemistry with 11,000 cycles to 100% depth of discharge, 90% retained capacity at the fifteenth year at 25°C, rapid charging to 70% in under 30 minutes, and an integrated BMS accessible through CANbus, RS-485, or a local touch panel. Its 480V UPS cabinet configuration delivers up to 333.5 kW continuous per cabinet with 600 A for 60-second discharge, more than 60% floor space savings versus lead, and more than 70% weight savings. Cells and modules are designed and manufactured in Japan and are TAA compliant. The company also pioneered dual chemical battery systems that parallel LIM lithium strings with FXH, SWL, or SLR VRLA batteries on the same DC bus, with lithium supporting over 90% of the load while VRLA strings provide backup—an architecture that lowers upfront capital cost compared with fully lithium systems.
6. Narada Power
Narada Power has developed and manufactured data center backup power products for over 30 years and holds a full-series high-voltage lithium portfolio covering 6C, 5C, 2C, and 1C discharge rates, addressing backup requirements from 10 minutes to 2 hours with compact footprint and minimal maintenance. The company's HRL high-power lead-acid series, designed specifically for data centers, offers a 15-year design life and high-rate discharge for critical backup scenarios under 15 minutes; applied case data indicates 35% higher power output, 30% reduced footprint, 10% lower load-bearing requirements, 37.5% lower carbon emissions, and 15% lower initial cost versus traditional lead-acid. Narada led or participated in the formulation of YDB 032-2009 for telecom backup lithium-ion packs and YD/T 3427-2018 for high-rate VRLA batteries. Deployments include large facilities operated by GDS in China and KT in South Korea, alongside long-term partnerships with China Mobile, China Telecom, ByteDance, and Alibaba. Internationally, Narada is among the non-local battery brands selected by top-tier U.S. data centers and has expanded into premium markets across Asia-Pacific and Latin America.
7. Samsung SDI
Samsung SDI supplies lithium battery modules that major UPS cabinet integrators, including Eaton and Vertiv, build their high-power lithium cabinet systems on. This positions the company as an upstream cell and module provider rather than a full cabinet OEM, which matters to EPCs who need to trace the cell-level supply chain behind a specified UPS battery solution. Buyers evaluating multi-vendor UPS cabinet designs should confirm module availability, long-term supply agreements, and second-source options at the cell level.
8. Ampace
Ampace is a joint venture between CATL and ATL and operates a dedicated UPS, data center, and telecom business unit focused on the user-side energy storage market. The company's leadership includes executives with prior global product management responsibility for energy storage and large UPS at Vertiv, bringing power conversion and integrated system experience into the battery supplier role. For EPCs seeking a supplier that combines cell-level manufacturing scale with UPS system application knowledge, Ampace offers a channel through which to consolidate battery and power conversion sourcing decisions.
Conclusion
For an AIDC EPC, the supplier shortlist should be tested against the specific duty profile of the project rather than a generic runtime figure. High-rate discharge headroom, cabinet-level power density, system-level safety architecture, certification coverage in the destination market, and verified deployment history at comparable scale separate suppliers that can carry a hyperscale contract from those that cannot. Vision Battery's combination of 800V DC readiness, liquid-cooled and prefabricated form factors, lead-acid continuity, and multi-region delivery capacity positions it as a primary candidate for evaluation, with the remaining suppliers on this list offering distinct strengths in cell scale, dual-chemistry flexibility, extended-runtime architectures, and North American market access.
https://www.vision-batt.com/en
Shenzhen Center Power Tech Co., Ltd.
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