Energy Storage Systems

Outdoor 20ft/40ft Battery Container ESS (1–5MWh, Liquid-Cooled, IP67)

This outdoor containerized battery energy storage system provides scalable lithium-ion storage in standard 20ft and 40ft containers.

This outdoor containerized battery energy storage system provides scalable lithium-ion storage in standard 20ft and 40ft containers. Ranging from 1MWh to 5MWh (2000kWh typical) with liquid cooling, an integrated BMS, and IP67 protection, it stores solar and grid power for industrial and commercial peak-shaving, backup, and hybrid-grid applications.

  • Outdoor containerized BESS in 20ft and 40ft sizes
  • Capacity from 1MWh to 5MWh (2000kWh typical)
  • Liquid-cooled lithium-ion battery racks for stable performance
  • Integrated BMS with CAN / RS485 communication
  • Hybrid-grid ready, solar-powered, IP67 outdoor rated
Product TypeOutdoor Containerized Energy Storage System (BESS)
Capacity1MWh / 2MWh / 2000kWh (up to 5MWh)
Battery TypeLithium Ion
CoolingLiquid Cooling
Protection ClassIP67
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Lead time typically 25–45 days after drawing approval · FAT welcome · Ships worldwide (EXW / FOB / CIF / DAP)

Technical specifications

Specifications of Outdoor 20ft/40ft Battery Container ESS (1–5MWh, Liquid-Cooled, IP67)
ParameterValue
Product TypeOutdoor Containerized Energy Storage System (BESS)
Battery TypeLithium Ion
Capacity1MWh / 2MWh / 2000kWh (up to 5MWh)
System Voltage768 V
Battery Configuration10P384S
CoolingLiquid Cooling
BMSIntegrated Battery Management System
Grid ConnectionHybrid Grid
Power SourceSolar Panel
CommunicationCAN / RS485
Protection ClassIP67
Container Dimension (L×W×H)12196 × 2438 × 2896 mm (40ft)
Weight27.5 t
ApplicationIndustrial and Commercial Energy Storage
Outdoor 20ft/40ft Battery Container ESS (1–5MWh, Liquid-Cooled, IP67) — specification and nameplate detail
Specification and nameplate detail

Specifications are based on the standard configuration. Final ratings, dimensions, materials and packaging are confirmed on the approved drawing and order confirmation.

Features and construction

  • Standard 20ft/40ft container with liftable corner castings for transport
  • Vertical battery racks of stacked lithium modules with orange HV connectors
  • Integrated PCS and control cabinet with monitoring and control panel
  • Liquid cooling loop for uniform cell temperature and long cycle life
  • Weatherproof IP67 outdoor construction
Outdoor 20ft/40ft Battery Container ESS (1–5MWh, Liquid-Cooled, IP67) — construction and materials detail
Construction and materials detail
Outdoor 20ft/40ft Battery Container ESS (1–5MWh, Liquid-Cooled, IP67) — internal structure
Internal structure
Outdoor 20ft/40ft Battery Container ESS (1–5MWh, Liquid-Cooled, IP67) — workmanship detail
Workmanship detail
Outdoor 20ft/40ft Battery Container ESS (1–5MWh, Liquid-Cooled, IP67) — safety and protection features
Safety and protection features

Typical applications

Ideal for outdoor solar-plus-storage plants, industrial and commercial energy storage, peak shaving, load shifting, and hybrid-grid backup at MWh scale.

Outdoor 20ft/40ft Battery Container ESS (1–5MWh, Liquid-Cooled, IP67) — typical application
Typical application

Customisation options

Capacity, container size (20ft/40ft), system voltage, grid configuration, and communication interface can be tailored to project requirements.

Outdoor 20ft/40ft Battery Container ESS (1–5MWh, Liquid-Cooled, IP67) — dimensions and layout
Dimensions and layout
Outdoor 20ft/40ft Battery Container ESS (1–5MWh, Liquid-Cooled, IP67) — customisation options
Customisation options

Ordering information

Please confirm required capacity, container size, system voltage, and grid connection type when ordering.

Specifications are based on the supplied product data. Final dimensions, materials, colors, and packaging are subject to the confirmed sample and order confirmation.

Standards and quality

Manufactured under an ISO 9001, ISO 14001 and ISO 45001 certified management system. Designs follow the IEC 60076 / IEC 62271 series as applicable, with ANSI/IEEE, GB and GOST variants available. Every unit passes routine testing before dispatch; type tests and customer or third-party witnessed factory acceptance tests can be arranged.

Frequently asked questions

What is the rated capacity of the Outdoor 20ft/40ft Battery Container ESS (1–5MWh, Liquid-Cooled, IP67)?

The standard configuration is rated 1MWh / 2MWh / 2000kWh (up to 5MWh). Other ratings in the same family can be built to order — tell us the load and we will confirm the nearest standard rating.

Which standards and certifications apply?

MARS operates an ISO 9001 / 14001 / 45001 certified factory and holds CE (ECM), UDEM, EAC and CQC approvals; every unit is routine-tested before dispatch and type or witnessed tests can be arranged.

Can this product be customised?

Capacity, container size (20ft/40ft), system voltage, grid configuration, and communication interface can be tailored to project requirements.

What is the lead time and how is it shipped?

Typical lead time is 25–45 days after drawing approval for distribution equipment and 60–90 days for power transformers and containerised systems. Shipment is by sea from Shanghai on EXW, FOB, CIF or DAP terms with a full document pack.

Enquire about this product

Tell us the rating, voltage ratio, frequency, quantity and destination. A MARS engineer replies with a technical proposal and quotation within one working day.

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