SUNPOK 51.2V 400Ah Energy Storage Lithium Battery: Powering a Greener Future with Freedom and Reliability

Introduction: The Energy Revolution is Here—Are You Ready to Break Free?
As the world shifts toward carbon neutrality and renewable energy, homes, businesses, and outdoor enthusiasts demand efficient, safe, and sustainable energy storage solutions. Traditional lead-acid batteries are bulky, inefficient, and short-lived, while standard lithium batteries raise safety concerns.
SUNPOK, a leader in energy storage innovation, proudly introduces the ​51.2V 400Ah (20.48kWh) High-Capacity Lithium Iron Phosphate (LiFePO4) Battery. Engineered for safety, intelligence, and longevity, this powerhouse redefines energy independence for residential, commercial, and off-grid applications.

​5 Core Advantages of SUNPOK 51.2V 400Ah Battery
1.​Massive Capacity, Uninterrupted Power
With a staggering ​20.48kWh capacity, this battery powers a typical household for 3-5 days (covering appliances like AC, refrigerators, and lighting), sustains outdoor adventures for a week, or supports small businesses during outages. Pair it with SUNPOK’s hybrid inverters for seamless grid-tied/off-grid transitions—no more blackout worries.

​2.Military-Grade Safety, Zero Compromises
Built with ultra-stable ​LiFePO4 cells, SUNPOK’s battery outperforms traditional lithium-ion in heat resistance and safety, passing rigorous tests (nail penetration, overcharge, short-circuit). The BMS monitors voltage, temperature, and current 24/7, ensuring cell balance and eliminating risks of thermal runaway or fire.

3.​15+ Year Lifespan, Invest Once, Save Forever
Featuring proprietary Technology, the battery achieves ​6,000+ deep cycles (80% capacity retention). At one cycle per day, it lasts over 15 years—backed by a ​10-year warranty. Slash long-term energy costs by 60% and ditch frequent replacements.

​4.Rapid Charge/Discharge, Maximum Efficiency
Supports ​1C charging/discharging (400A current), reaching full charge in 2 hours. With ​98% round-trip efficiency, it captures solar energy or off-peak electricity with near-zero loss. Ideal for solar storage, peak shaving, and emergency backup.

5.​Scalable & Rugged, Built for Any Challenge
Expandable to 100kWh+ via parallel connection, compatible with major inverters and generators. ​IP21 waterproof and operable from ​**-20°C to 60°C**, it thrives in extreme environments—perfect for homes, RVs, telecom towers, and remote microgrids.

​4 Key Applications: Energy Freedom, Your Way
1.​Home Energy Independence: Store solar power by day, charge with off-peak grid power at night. Cut electricity bills by 50%+ via SUNPOK’s smart app-driven energy management.

​2.Outdoor Exploration: Power RVs, campsites, and high-wattage devices (e.g., induction cookers, projectors) for off-grid comfort.

​3.Business Continuity: Keep shops, clinics, and factories running during outages—zero downtime, zero lost revenue.

4.​Off-Grid Infrastructure: Empower remote villages, schools, or telecom stations with solar hybrid systems for 24/7 clean energy.

​Why SUNPOK?
​Trusted by 100,000+ users across 50+ countries.
​End-to-End Support: Custom solutions, installation guidance, and 24/7 technical service throughout the product lifecycle.
Conclusion: Take Control of Your Energy Future
The SUNPOK 51.2V 400Ah LiFePO4 Battery isn’t just a power bank—it’s your gateway to reliable, sustainable energy.

Act Now—Lead the Green Energy Transition!
Visit SUNPOK’s website or contact local distributors for tailored solutions. ​

SUNPOK Energy – Store Smart, Live Free
Website: 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!

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 more than 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 20,000 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.