What is the average lead time for delivery?

The average lead time is within 15 workdays, regardless of peak or off-season.

Where are your products exported to?

We export to North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, and Western Europe.

What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, Western Union, Small-amount payment, Money Gram, and others.

300kwh Ess Flow Battery Electric Storage Batteries Portable Power Storage

Name: 300kwh Ess Flow Battery Electric Storage Batteries Portable Power Storage
Brand: Rosen Solar Energy Co., Ltd.
SKU: 1956980275

Anhui, ChinaRosen Solar Energy Co., Ltd.

US$1.80

300-499 Kiowatt/Kiowatts

US$1.60

500-799 Kiowatt/Kiowatts

US$1.50

800-999 Kiowatt/Kiowatts

US$1.40

1,000+ Kiowatt/Kiowatts

Product profile

Customization

Available

Condition

New

Certification

CE, TUV

Model NO.

RS300KWH-ESS

Application

Industrial, Commercial

Specification

Normal

Inverter

Hybrid Inverter with Automatic Switch

Battery

Gel/Lithium Battery with BMS

Material

Aluminum Alloy.Hot DIP Galvanized Steel etc

Solar Panel

Mono/Poly 158.75/166/182/210mm

Monitoring

WiFi/GPRS Device etc

PV Cable

6mm2/10mm2/25mm2/35mm2 etc

Mounting Brackets

Customized Roof/Ground Installation

Accessories

Mc-4 Spanner, Crimping Pliers etc

OEM/ODM

Acceptable

Technical Support

Installation Manual/Training/Video etc

Output Voltage

EU:230/240/380/400V Us:110/220/240VAC

Output Frequency

50/60Hz; ±5

Transport Package

Wooden Box, Carton on Pallets etc

Trademark

Rosen or OEM

Origin

China

HS Code

8543709990

Production Capacity

1000000 Set/Sets Per Week

Key features

Customizable Components: Inverter, battery type, material, and mounting brackets are fully customizable.

OEM/ODM Service: Accepts OEM and ODM orders for tailored product solutions.

Certified Safety: Products hold CE and TUV certifications for industrial and commercial use.

Flexible Output Voltage: Supports EU (230-400V) and US (110-240V) voltage standards.

Comprehensive Support: Provides installation manuals, training, and video technical support.

Versatile Installation: Suitable for roofs, ground, carports with adjustable mounting brackets.

Fast Lead Time: Average lead time within 15 workdays for both peak and off-season.

Global Export Experience: Exporting since 2008 to markets in North America, Europe, and Asia.

Company profile

Fast DeliveryOverseas ServicesCustomization from SamplesOEM Services

Rosen Solar Energy Co., Ltd.

Anhui, China

Business Type: Manufacturer/FactoryExport Year: 2008-01-01Nearest Port: Ningbo Port, Shanghai Port, Shenzhen PortAverage Response Time: ≤7.70hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryRosen Solar Energy Co., Ltd. is identified as a Chinese manufacturer/factory offering solar panels, solar systems, lithium batteries, AGM/GEL batteries, and energy storage systems. The supplier reports broad customization, ODM, SDK availability, recent new-product activity, and OEM service for known brands. Its service procedures include documented assessment, corrective action, and complaint-handling records, although the approved-supplier list lacks approval signatures or dates. Overseas service is reported in Hungary for debugging, equipment installation, and training, but there are no overseas showrooms, agents, branches, or offline trade-show participation. Export sales represent 71%–90% of total sales, and the supplier reports peak- and off-season lead times within 15 working days. Production-scale information is inconsistent: one slice describes a battery factory with 145,000 square meters and more than 1,360 employees, while another lists 20 total employees. No certification information or...

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and a limited company in China. Its stated product scope includes solar panels, solar systems, lithium batteries, AGM/GEL batteries, and solar energy storage systems, while it is not reported as part of a larger company group.

After-Sales capabilityThe supplier reports overseas services in Hungary, including debugging, equipment installation, and training. It also has written procedures and followed records for service assessment, corrective and preventive actions, and customer complaint handling; however, it has no overseas showroom, agent, branch, or offline trade-show participation, and its approved-supplier list lacks approval signatures or dates.

R&D capabilityThe supplier reports new-product activity during the past year, ODM service, and an available SDK. Its business scope also explicitly includes R&D and production of solar LED and optical-material products, supporting an active product-development capability.

Production capacityThe supplier states that it manufactures, processes, assembles, sells, and installs related products, and describes battery production across lithium, VRLA AGM, VRLA GEL, OPzS, and OPzV types for multiple applications. Production-scale evidence is inconsistent because one slice reports a 145,000-square-meter factory with more than 1,360 employees, while another lists 20 total employees; capacity cannot therefore be reliably quantified.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. These capabilities are reported in both the R&D and design-service information, indicating broad customization coverage.

Client casesThe supplier reports providing OEM services for known brands, which is evidence of at least one type of customer engagement. However, no brand names, project details, order examples, or independently verifiable customer case information is provided.

Product Q&A

Q:What customization options are available?

We offer customization for the inverter (Hybrid with Auto Switch), battery (Gel/Lithium), material (Aluminum/Steel), solar panel size, monitoring device, PV cable, and mounting brackets.

Q:Do you accept OEM or ODM orders?

Yes, we accept both OEM and ODM orders to meet specific customer requirements.

Q:What certifications do your products have?

Our products are certified with CE and TUV standards, suitable for industrial and commercial applications.

Q:What are the output voltage specifications?

The output voltage supports EU standards (230/240/380/400V) and US standards (110/220/240VAC).

Q:What technical support is provided?

We provide installation manuals, training sessions, and video guidance for technical support.