How is the after-sales service of WENREY?

We offer worry-free after-sales service. If there is any quality issue with the battery, please return it for a replacement.

Does WENREY have the necessary transportation certificates?

Yes, we have complete transportation certificates including CE, MSDS, UN38.3, and sea shipping certificates, ensuring worry-free transportation by sea, air, land, and rail.

What are the main products offered by WENREY?

Our main products include wall-mounted batteries, stackable batteries, low-voltage cabinets, portable power stations, UPS systems, LiFePO4 batteries, and various residential and commercial energy storage and backup batteries.

Advanced 48V 20kwh Rack-Mounted Lithium Ion Battery Pack Using LiFePO4 Technology for Smart Solar Energy Storage and Back-up Power Management Battery

Name: Advanced 48V 20kwh Rack-Mounted Lithium Ion Battery Pack Using LiFePO4 Technology for Smart Solar Energy Storage and Back-up Power Management Battery
Brand: Guangdong Wenrui New Energy Co., Ltd.
SKU: 2236785455

Guangdong, ChinaGuangdong Wenrui New Energy Co., Ltd.

US$523.00-2,644.00

1 Piece

Product profile

Customization

Available

Type

Li-ion Battery

Cathode Material

LFP

Model NO.

HESB

Rechargeable

Yes

Size

Large

System Voltage

51.2 V

Output Power Range

20-30kw

Grid Connection

off Grid, Hybrid Grid

Battery Type

LiFePO4

System Type

Rack-Mounted

Weight

240kg

Communication Port

Can, WiFi, RS-232, Bluetooth, RS485

Protection Class

IP65

Nominal Voltage

51.2V 16s / 48V 15s

Nominal Capacity

100ah / 200ah / 300ah / 400ah / 500ah

Energy

5kwh / 10kwh / 15kwh / 20kwh / 25kwh or Customized

Cell Model

3.2V 100ah LFP

BMS

Built-in BMS Protection

Battery Cell Type

Grade a LFP Batteries

Life Time

20 Years

Transport Package

Sea Freight Cardboard Boxes

Specification

480*437*790mm

Trademark

WENREY

Origin

Huizhou City, Guangdong Province, China

Production Capacity

50000PCS/ Year

Key features

Long Lifespan: Up to 20 years of reliable operation with Grade A LFP cells.

Comprehensive Warranty: Standard 3-year full warranty with optional 5 or 10-year upgrades.

Customizable Energy: Flexible energy options from 5kWh to 25kWh or fully customized.

OEM/ODM Services: Full customization available including logos, packaging, and graphics.

Wide Voltage Range: Nominal voltage 51.2V with working range 40V to 58.4V.

Robust Protection: IP51 protection level with built-in BMS for safety.

Multiple Certifications: Certified with CE, UL, MSDS, UN38.3, ISO9001, and more.

Versatile Applications: Ideal for solar storage, RVs, boats, medical devices, and power tools.

Company profile

In-stock CapacityFast DeliveryQuality AssuranceR&D Capabilities

Guangdong Wenrui New Energy Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: OEM Service Available CertifiedCustomization Options: Customization from Samples, Full Customization CertifiedExport Year: 1 Month CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤2.48h

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company and professional technical supplier with direct-source, end-to-end manufacturing positioning. ISO 9001:2015 certification and quality assurance are stated, but finished-product inspection is performed by packing staff and only one quality inspector is reported. It supports sample customization, full customization, and OEM services for well-known brands, but does not provide 3D software design, ODM, SDK, or reported new products in the past year. Manufacturing-related equipment and export activity are documented, with 71%–90% of sales from exports and a one-month average lead time in both peak and off-season. After-sales and overseas service systems appear limited: no overseas warehouse, showroom, agents/branches, or offline trade-show participation are reported, and no written service procedures or approved supplier list exist. Financial records are referenced for recent years, but the provided data does not establish financial strength. No specific...

Supplier typeThe supplier is described as a professional technical supplier and a combined company. Its stated business scope includes licensed power generation, transmission, and distribution/supply activities, subject to required approvals, while its offering profile includes manufacturing, export, service, quality control, and R&D capabilities.

CertificationsISO 9001:2015 certification is explicitly linked to the supplier’s source-manufacturing and process-control claims. The supplier also states that quality assurance exists, although the slices do not identify additional certifications or provide certificate validity details.

After-Sales capabilityThe supplier reports no written procedures or records for effective service capability, no approved supplier list, and only an unspecified “Others” mechanism for complaints and corrective/preventive actions. It also has no overseas warehouse, showroom, overseas agent or branch, or offline trade-show participation, indicating limited documented after-sales and overseas service infrastructure.

R&D capabilityThe supplier is identified as having professional technical R&D capability and can provide customization from samples and full customization. However, it does not provide 3D software design, ODM, or SDK services, and reports no new products during the past year, limiting evidence of active product innovation.

Production capacityThe supplier emphasizes direct-source, end-to-end manufacturing control and ISO-linked process control. Production-related equipment includes a precision wire cutter and hydraulic terminal crimping machine; export sales account for 71%–90%, and average lead time is one month in both peak and off-season. However, only one quality inspector is reported and finished products are checked by packing staff.

Customization capabilityThe supplier explicitly offers customization from samples and full customization, and reports OEM service for well-known brands. These capabilities support customized production, although the supplier does not provide ODM services or 3D software design.

Product Q&A

Q:Who is WENREY and what do they specialize in?

Derun is a manufacturer of LiFePO4 batteries. Established in 2010, the factory covers over 10,000 square meters, is located near BYD, and has an automated production line capable of producing up to 600 units per day. It is the only manufacturer with a dedicated high-temperature testing room.

Q:Can I visit WENREY factory?

Yes, you are welcome to visit our factory at any time. Free samples are available for quality testing. Large orders can follow the production line and track quality control throughout the process.

Q:What brands of BMS protection boards does WENREY use?

We use high-quality BMS boards from well-known brands such as PACE and JBD.

Q:Does WENREY offer OEM and ODM services?

Yes, you can choose our standard products and customize them with your own brand logo as OEM, or customize according to your own standards as ODM.

Q:What is the warranty policy of WENREY?

All batteries come with a 3-year full warranty and an optional 5-year or 10-year paid warranty.