Can you do OEM or ODM service?

Yes, we have an R&D department and accept OEM and ODM service.

How about a warranty?

60 MONTH warranty, technical support available, we always try our best to help customers solve problems

Nominal Voltage 51.2V400ah Rack-Mounted Home Energy Storage Battery Lithium Battery

Name: Nominal Voltage 51.2V400ah Rack-Mounted Home Energy Storage Battery Lithium Battery
Brand: Nanjing Oulu Electric Corp., Ltd.
SKU: 1975325581

Jiangsu, ChinaNanjing Oulu Electric Corp., Ltd.

US$492.00

1-99 Pieces

US$450.00

100+ Pieces

Product profile

Customization

Available

Type

Li-ion Battery

Cathode Material

LFP

Model NO.

OL48400-A1

Rechargeable

Yes

Size

Medium

Product Name

Energy Storage Battery

Keywords

Rack Mounted Storage Battery

Nominal Voltage

51.2V

Battery Voltage Range

43.2-57.6V

Standard Charge/Discharge Current

0.5c

Max. Charge/Discharge Current

Communication Interface

Can/RS485

Self-Discharge

≤ 3%/Month

IP Rating

IP20

Cooling

Natural

Cycle Life

25±2ºC,0.5c/0.5c,Eol80% ≥ 6000

Working Temperature Range Charge

0ºC ~60ºC

Working Temperature Range Discharge

-20ºC ~60ºC

Altitude

0~ 4000m(Derating Over 2000m)

Transport Package

Carton

Specification

Standard Specifications or Customized

Trademark

OULU

Origin

Jiangsu, China

HS Code

8507600090

Production Capacity

50000

Key features

High Capacity Energy Storage: Nominal capacity of 400Ah with 20.48kWh rated energy for reliable power backup.

Long Cycle Life: Over 6000 cycles at 0.5C/0.5C with EOL80% capacity retention for extended use.

Universal Inverter Compatibility: Seamlessly integrates with various inverter brands without complex modifications.

Smart APP Monitoring: Real-time performance tracking and management via intelligent APP system.

Comprehensive Protection: Includes overvoltage, undervoltage, overcurrent, short-circuit, and temp protection.

OEM/ODM Customization: Accepts OEM and ODM services with full customization options from designs.

Safe LFP Technology: Uses premium Li-ion LFP cells for superior energy density and enhanced safety.

Standard Communication: Supports CAN/RS485 interfaces for reliable data transmission and connectivity.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceCooperated with Fortune 500Years of Export Experience

Nanjing Oulu Electric Corp., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 18 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤9.28h

AI-Powered supplier vetting

SummaryThe supplier is identified as a factory engaged in research and development, production, sales, installation, and technical services for electric vehicles, accessories, lighting systems, and related equipment. It reports CE product certification and ISO9001:2015, ISO14001, and ISO45001:2018 management-system certifications. Evidence indicates broad customization, ODM/OEM services, SDK availability, recent new-product development, and extensive assembly and testing facilities. The supplier has exported for 18 years, reports peak- and off-season lead times within 15 working days, and maintains documented quality and supplier-management procedures. Its overseas service infrastructure is limited: it reports no overseas warehouses, showrooms, agents, or branches, and serves zero overseas countries, although debugging is offered and offline trade-show participation is documented. Financial records are referenced for 2022–2024, but the provided slices do not include financial results or metrics.

Supplier typeThe supplier is explicitly identified as a factory. Its stated business scope includes R&D, production, sales, technical services, engineering design and construction, equipment installation, and import/export activities.

CertificationsThe supplier reports CE product compliance certification and ISO9001:2015, ISO14001, and ISO45001:2018 management-system certifications. These certifications provide explicit evidence of product and management-system compliance coverage.

After-Sales capabilityThe supplier lists debugging as an overseas service and has participated in the Shanghai New Energy Exhibition and Conference. However, it reports zero countries served overseas and no overseas warehouse, showroom, agent, or branch, indicating limited documented overseas service infrastructure.

R&D capabilityThe supplier reports new products within the past year, ODM services, available SDK support, and one national science and technology progress award. These are explicit indicators of product-development and technical innovation capability.

Production capacityThe supplier reports multiple dedicated production and testing facilities, including battery assembly and welding, OCV and aging testing, inverter assembly, wind-turbine assembly, and painting lines. It also reports documented finished-product inspection, 30 qualified service-capability suppliers, and lead times within 15 working days in both seasons.

Customization capabilityThe supplier explicitly offers customization from samples and designs, minor and full customization, and flexible customization. It also reports both ODM and OEM services, supporting a broad customization offering.

Client casesThe supplier reports OEM service for well-known brands and collaboration with Fortune 500 companies. These statements provide explicit customer-experience evidence, although no customer names, project details, or performance outcomes are provided.