10 Years Warranty Offgrid Solar Energy Storage Power System Home 48V 51.2v 400AH 20KWh Lithium Ion LiFePO4 Battery

Sunpok Energy Storage: 51.2V 400Ah LiFePO4 Battery for Serious Home Power​​

Take control of your home energy with substantial capacity. Sunpok delivers core power storage through our ​​51.2V 400Ah Lithium Iron Phosphate (LiFePO4) Battery​​ – engineered for homeowners prioritizing energy independence.

​​Unmatched Capacity & Reliability​​
At its core lies ​​20.48 kWh​​ of usable energy, designed to:

• Sustain critical appliances (refrigerators, lights, medical devices) during grid failures.
• Maximize solar energy utilization by storing daytime surplus for peak evening use, reducing your electricity bills.
• Expand your power reserve with multiple units (ensure inverter compatibility for parallel connection).

​​Engineered for Long-Term Performance​​

• ​​LiFePO4 Technology:​​ Built on inherently safe, stable lithium iron phosphate chemistry, prioritizing security and enduring ​​8,000+ charge cycles​​ while retaining usable capacity.
• ​​Space-Conscious Design:​​ A streamlined vertical form factor minimizes floor space requirements for practical indoor installation.
• ​​Comprehensive BMS Protection:​​ An advanced Battery Management System safeguards against over-voltage, over-current, overheating, and short circuits, while ensuring cell balance.
• ​​Robust Construction:​​ Heavy-duty steel casing provides impact resistance and secure mounting for internal components.

​​Technical Specifications​​

• ​​Nominal Voltage:​​ 51.2V
• ​​Rated Capacity:​​ 400Ah
• ​​Usable Energy:​​ 20.48 kWh
• ​​Chemistry:​​ Lithium Iron Phosphate (LiFePO4)
• ​​Cycle Life:​​ >8000 cycles (to 80% capacity)
• ​​Terminals:​​ Standard (+) and (-) terminals for DC connection
• ​​Environmental Protection:​​ IP21 (Suitable for ​​dry, indoor installations only​​).
• ​​Monitoring:​​ Basic operational status indicators​​

​​Key Considerations​​

• ​​Indoor Use Requirement:​​ Due to its IP21 rating, ​​installation must be indoors​​ within a clean, dry, temperature-controlled environment. Protect from direct moisture, dust, extreme temperatures, and corrosive substances.

​​Ideal For:​​

• Homeowners needing significant backup power capacity.
• Solar users seeking to store large amounts of self-generated energy.
• Buyers valuing the long lifespan and safety of LiFePO4 batteries.

​​Ready for Foundational Power Storage?​​
The Sunpok 51.2V 400Ah battery delivers substantial energy independence in a vertical, robust package. If your goal is core backup capacity and solar maximization with professional integration, this is your solution.

​​For Detailed Specifications:​​
Discover comprehensive technical information and product data on our official website:
​​http://www.sunpok.com​​

​​Sunpok: Substantial Storage. Essential Power.​​
http://www.sunpok.com​​

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!