What warranty and after-sales support do you provide?

Every system comes with a 10-year warranty, supported by factory technical support and remote monitoring that enables early fault detection and fast response -so you are never left alone after delivery.

What is the delivery lead time, and how is shipping arranged?

The standardized 20ft container design simplifies freight planning, loading and customs documentation. Lead time depends on order size and destination - contact our sales team for current lead time and logistics options for your port.

Sunark 5mwh All in One Lithium Battery Bess Container with High Stability for Grid Connected Storage

Name: Sunark 5mwh All in One Lithium Battery Bess Container with High Stability for Grid Connected Storage
Brand: SunEvo Solar Co., Ltd.
SKU: 2001687831

Anhui, ChinaSunEvo Solar Co., Ltd.

US$0.15

1,000,000-1,999,999 Watts

US$0.13

2,000,000-4,999,999 Watts

US$0.11

5,000,000+ Watts

Product profile

Customization

Available

Container Size

6058*2438*2896

Weight

42.5t

Model NO.

CubeArk

Nominal Voltage

1331.2V

Warranty

Yes

Nominal Capacity

5mwh

Cycle Life

10000 Cycles

Application

Liquid Cooling Container Energy Storage System

Cell Rated Capacity [Ah]

314

Rated Capacity [Kwh]

5015.96

Rated Grid Frequency [Hz]

50/60

Fire Fighting System

1230 Fire Fighting System

Temp. Range [°C]

-20~+50

Ingress Protection

IP55

Corrosion-Proof Grade

Communication Mode

Modbus-TCP / IEC61850 / IEC104

Transport Package

Carton with Pallet

Specification

5mwh

Trademark

SUNARK

Origin

Anhui

Key features

Advanced forced liquid cooling with 50% glycol enables full 100% depth of discharge, maximizing usable energy while boosting system cycle efficiency to 93.5% and cutting operating costs for higher ROI

Module-level fire isolation with aerosol suppression and physically partitioned battery modules prevents thermal runaway propagation, ensuring maximum safety for utility, commercial and industrial

IP55-rated 20ft container with C4 corrosion protection withstands harsh outdoor environments up to 2000m altitude, delivering reliable performance in extreme heat, dust, humidity and coastal climates

Multi-protocol intelligent EMS supports Modbus-TCP, IEC61850 and IEC104 for seamless integration with SCADA systems and grid operator, enabling remote monitoring and smart energy dispatch in real time

Pre-commissioned, factory-tested 5MWh plug-and-play units support parallel expansion to multi-MWh systems, cutting on-site installation time and cost while scaling fast with growing project demands.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceExperienced TeamSelf-branded

SunEvo Solar Co., Ltd.

Anhui, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 4 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤2.28h CertifiedTerms of Payment: LC, T/T, D/P, etc.

About Our Factory & Business Background

AddressNo. 398 Ganquan Road, Hefei, Anhui, China

Plant Area830 square meters

Number of Employees26

Registered Capital10,000,000 RMB

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity1

Supply Chain Partners600

Our Production Capability & Technical Expertise

Main ProductsSolar Panels, Solar Inverter, lithium Battery, Solar System, Industrial and Commercial Energy Storage

R&D Engineers4 people

Our Industry Experience & Global Business Record

Year of Establishment2022-01-06

Main MarketsNorth America, South America, Europe, Southeast Asia/ Mideast, Africa

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff15

Overseas Agent/BranchNo

New Products Launched in Last yearYes

Our Certifications, Standards & Industry Recognition

Product CertificationOthers

Cooperated with Fortune 500No

Product Q&A

Q:Are containerized BESS safe? What happens if a cell fails or overheats?

Safety is engineered in. Each 5MWh unit features module-level fire isolation with aerosol suppression - battery modules are physically partitioned so thermal runaway cannot propagate between modules, while the built-in BMS continuously monitors cell status for early protection.

Q:How complex is on-site installation, and how fast can we go live?

Minimal site work is required. The system is pre-commissioned and factory-tested inside a standard 20ft container with plug-and-play architecture - no on-site battery rack assembly, cutting installation time and cost so your team can operate it sooner.

Q:Can it integrate with our existing SCADA, PCS/inverter and grid requirements?

Yes. The intelligent EMS supports Modbus-TCP, IEC61850 and IEC104 protocols for seamless integration with SCADA systems and grid operators, including remote monitoring and smart energy dispatch in real time.

Q:What if our energy demand grows after the first 5MWh unit?

The architecture is modular and plug-and-play: factory-tested 5MWh units connect in parallel and expand to multi-MWh systems, so you scale capacity as demand grows without re-engineering the original installation.

Q:How long does the battery last? What is the cycle life?

Built on Grade A LFP cells in high-voltage racks, the system delivers more than 10,000 cycles with a 10-year warranty, giving a long service life and predictable long-term cost of ownership.