48V 400Ah 20Kwh Home Energy Storage Solar Battery Multi-Function Lithium Ion

Product Specification

Sunpok 51.2V 400Ah Vertical Lithium Battery: Effortless Energy for Modern Homes​​

As households increasingly prioritize energy resilience and cost efficiency, the Sunpok 51.2V 400Ah vertical lithium-ion battery emerges as a practical, high-performance solution for everyday energy needs. Designed for simplicity and endurance, this compact storage system empowers homeowners to harness and manage electricity effectively—no frills, just reliable power.

​​Unmatched Energy Reserve​​
With a substantial 20.48 kWh capacity, the Sunpok battery ensures uninterrupted power for critical appliances, from refrigerators to lighting systems, during outages or periods of high demand. Its lithium iron phosphate (LiFePO4) chemistry guarantees stability and longevity, supporting over 8,000 charge-discharge cycles at 80% depth of discharge. This translates to a decade or more of consistent performance, making it a cost-effective investment for reducing reliance on the grid or optimizing solar energy usage.

​​Space-Saving Vertical Architecture​​
Ideal for homes with limited floor space, Sunpok’s vertical design combines high energy density with a slim footprint. The self-standing unit fits discreetly in corners, closets, or utility rooms, blending functionality with minimalist aesthetics. The IP21 rating ensures basic protection against dust and incidental moisture, suitable for indoor installations where space and safety are prioritized.

​​Built for Safety and Stability​​
Sunpok prioritizes household safety with multi-layered protection mechanisms, including safeguards against overcharging, excessive discharge, short circuits, and temperature fluctuations. The inherently stable LiFePO4 cells minimize fire risks, offering a secure solution for 24/7 energy storage.

​​Versatile Integration​​
Compatible with most off-grid and hybrid inverters, the 51.2V 400Ah battery adapts to diverse energy systems. While professional installation is advised for optimal performance, its straightforward design allows for easy monitoring and maintenance. 

​​Key Specifications​​

• Voltage: 51.2V
• Capacity: 400Ah
• Energy Output: 20.48 kWh
• Cycle Life: 8,000+ cycles (80% DoD)
• Chemistry: LiFePO4
• Protection Rating: IP21

​​Why Sunpok Stands Out​​
Sunpok’s focus on core functionality ensures a no-compromise approach to energy storage. By eliminating unnecessary features, the brand delivers a product that excels in durability, efficiency, and value—perfect for homeowners seeking straightforward solutions.

Elevate your home’s energy independence with the Sunpok 51.2V 400Ah vertical lithium battery. Learn more at ​​sunpok.com​​ and take control of your power needs today.

48V Energy Storage Lithium Battery Parameters
 

About Sunpok Energy

Guangzhou Sunpok Energy Co., ltd. is a high-tech enterprise integrating battery research and development, design, and production. It was registered in Guangzhou, China in 2016.

After years of development, sunpok energy has become a leader in China's energy storage industry, vertically integrated upstream and downstream supply chain resources, continuously optimized the company's product matrix, improved product performance, and won praise from customers at home and abroad.

The products of sunpok energy have been sold all over the world, bringing green energy to more than 12,000 families and units. At present, the products of sunpok energy mainly include:

1. Energy Storage Lithium Battery
2. 48V Lithium Ion Battery
3. Lithium Portable Power Station
4. All In One ESS
5. Complete Off Grid Solar System
6. Hybrid Solar System Kit
7. Wind Solar Hybrid Power System
8. Off Grid Inverter
9. Deep Cycle Lithium Battery
10. 12V Gel Battery
11. Mono PV Panels
12. Residential Wind Turbine
Mutual benefit and win-win results have always been the tenet of Sunpok Energy. In the future, sunpok energy will work with partners to scale new heights with a more inclusive attitude.


48V Energy Storage Lithium Battery Product Display
The production of energy storage lithium batteries is operated by professional workers with more than 5 years of experience.

Use the world's leading testing equipment to carry out comprehensive testing of batteries.

Strong R & D and production capacity of energy storage lithium battery, can provide OEM/ODM service for partners all over the world.

Customers visiting the factory

48V Energy Storage Lithium Battery Project Display

FAQ
Question 1: Are you a factory or a trader?
Answer 1: We are a manufacturer of batteries, and can also provide solutions for the entire solar system.
Question 2: What is the lead time?
Answer 2: We can deliver within 3-15 days.
Question 3: What is the warranty period, and how many years?
Answer 3: The warranty period for batteries is 5-10 years.
Question 4: How is your technical support?
Answer 4: We provide lifetime online support through Whatsapp/ Skype/ Wechat/ Email. Any problem after delivery, we will offer you a video call anytime, our engineer will also go to overseas help our customers if necessary.
Question 5: How to become your agent?
Answer 5: Contact us through the website, email, or phone, and we can talk about details to confirm.
Question 6: Is the sample available and free?
Answer 6: The sample will be charged a cost, but the cost will be refunded after the bulk order.
Question 7: Do you support OEM/ODM?
Answer 7: Of course, we can do customized services for our partners.
If you have other questions, please add the contact information of our sales manager to understand, thank you!