Can you do OEM or ODM service?

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

How about a warranty?

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

High-Efficiency Solar System with 5kwh Lithium Battery and 5kw Inverter

Name: High-Efficiency Solar System with 5kwh Lithium Battery and 5kw Inverter
Brand: Nanjing Oulu Electric Corp., Ltd.
SKU: 2258220135

Jiangsu, ChinaNanjing Oulu Electric Corp., Ltd.

US$1,250.00

1-99 Pieces

US$1,214.00

100+ Pieces

Product specifications

5kw 5kwh

5kw 10kwh

5kw 15kwh

Sample price:US$1260.00/piece.Request sample

Product profile

Customization

Available

Weight

55kg-145kg

Warranty

1-5 Years Warranty

Cycle Life

25+/-2c,0.5c/0.5c,Eol80%>=6000

Nominal Capacity

5.12 Kwh-15.36 Kwh

Product Name

Energy Storage Battery System

Keywords

Home Energy Storage System

Inverter Output AC Rated Voltage

220VAC/230VAC

Inverter Output Rated Frequency

50Hz/60Hz

Inverter Output Max. Efficiency

≥ 93.5%

Inverter Output Switchover Time

10ms

Waveform

Pure Sine Wave

Rated Battery Voltage

51.2V

Max. Charge Current

100A

Net Weight

10kg

Nominal Voltage

51.2V

Standard Charge Current

0.5c@25℃

Max.Charging Current

1c@25℃

Max.Discharge Current

1c@25℃

Communication Interface

RS485/RS232/Can

Transport Package

Wooden Case

Specification

Standard Specifications or Customized

Trademark

OULU

Origin

Jiangsu, China

HS Code

8507600090

Production Capacity

500000

Key features

All-in-One Integration: Integrates inverter, battery, and control into one unit for simplified installation.

Extended Cycle Life: Over 6000 cycles at 80% EOL, ensuring long-term reliable energy storage.

Smart Monitoring: RS485/RS232/CAN interfaces enable remote diagnostics and smart grid integration.

OEM/ODM Service: Full customization options available with dedicated R&D department support.

Wide Compatibility: Compatible with various solar panels and electrical systems with broad voltage range.

Robust Protection: Advanced battery management system provides comprehensive protection and optimization.

Flexible Shipping: Supports sea, air, and express shipping (DHL/UPS/FEDEX) with sample testing.

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: ≤9.08h

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.