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YLK Energy Storage System

Professional Lithium-Ion Battery
Manufacturer & Supplier

Delivering reliable, high-efficiency energy storage solutions for homes, businesses, and outdoor adventures. Trusted globally since 2010.

YLK Factory

About YLK Energy

Jiangsu YLK Energy is a professional manufacturer and supplier of lithium-ion batteries and solar energy systems. Since our inception, we have earned strong market recognition for the reliability, efficiency, and innovation of our Yuelaikai-branded products.

We specialize in home energy storage, off-grid and hybrid solar inverters, portable power stations, and complete solar energy storage systems. Our solutions are designed for residential, commercial, and outdoor applications, providing clean, uninterrupted power anytime, anywhere.

2010
Founded
50+
Countries Served

Featured Products

Discover our high-performance energy storage and power solutions engineered for reliability, efficiency, and long-term value.

Home Energy Storage Emergency Power Supply
Best Seller

Home Energy Storage Emergency Power Supply

  • LiFePO4 Battery Technology
  • Solar & Grid Charging Support
  • Emergency Backup Power
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Energy Storage System All In One 5.5KW

Energy Storage System All In One 5.5KW

  • On-Grid & Hybrid Operation
  • Integrated Inverter & Battery
  • 5.5KW Output, Pure Sine Wave
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5500w External Battery

5500w External Battery - Off Grid

  • Single Phase Frequency Output
  • High-Capacity LiFePO4
  • Ideal for Remote Locations
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6000w High Efficiency Battery

6000w High Efficiency Battery

  • Pure Sine Wave Solar Inverter
  • 6KW Output, High Efficiency
  • Durable for Industrial Use
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300Wh Portable Power Station

300Wh Portable Power Station

  • Camping & Travel Ready
  • USB, AC, DC Outputs
  • Fast Recharge via Solar or Wall
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Camping Lithium Battery Power Bank

Camping Lithium Battery Power Bank

  • Portable & Lightweight
  • High Energy Density
  • Perfect for Outdoor Adventures
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Wall-mounted Home Energy Storage

Wall-mounted Home Energy Storage 5KW

  • Space-Saving Design
  • 5KW Capacity, Smart Monitoring
  • Seamless Solar Integration
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Stacked Home Energy Storage 10-25KW

Stacked ESS 10~25KW

  • Modular Scalable Design
  • Commercial & Industrial Grade
  • High Power Output
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Why Choose YLK Energy?

High Efficiency

Our LiFePO4 batteries and inverters deliver maximum power with minimal loss, ensuring optimal performance and savings.

Safety First

Built-in BMS, overcharge protection, and thermal management ensure safe operation in all conditions.

Long Lifespan

Engineered for 3000+ cycles, our batteries offer years of reliable service with minimal degradation.

Global Support

Serving customers in over 50 countries with responsive service and technical assistance.

15+
Years in Market
500+
Projects Completed
50+
Countries Served
10K+
Units Shipped

Frequently Asked Questions

We specialize in LiFePO4 (lithium iron phosphate) batteries known for their safety, long cycle life, and thermal stability. Our products include home energy storage, portable power stations, and industrial battery systems.
Yes, many of our energy storage systems are designed for off-grid and hybrid use. We offer off-grid inverters, hybrid inverters, and complete standalone solar power solutions.
Yes, we provide comprehensive OEM and ODM services. We can customize battery capacity, design, packaging, and branding according to your requirements.
Most of our battery systems come with a standard 5-year warranty. Extended warranty options are available upon request.

Get in Touch

Have questions or ready to start a project? Contact us today for expert support and customized solutions.

Address

Room 801, Building A, Greenland Yinghai, Xuzhou City, Jiangsu Province, China

Phone

+86 18252143300

+86 19025101256

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