Haisic 21.5kWh High Voltage LiFePO4 Home Energy Storage System

Product Overview

The Haisic 21.5kWh High Voltage LiFePO4 Home Energy Storage System is a powerful, all-in-one solution designed for reliable, long-lasting residential energy storage. Combining advanced LiFePO4 (LFP) battery technology with a built-in hybrid inverter, this stackable home battery offers exceptional performance and efficiency. With a nominal capacity of 21.5kWh and a system voltage range of 180–233.6V, it provides robust backup power for off-grid or hybrid grid-connected solar energy systems.

This high voltage LiFePO4 storage system is ideal for homeowners seeking a sustainable, cost-effective way to maximize their solar power usage and increase energy independence. Its durable IP65-rated enclosure enables outdoor installation, while the system’s long cycle life—up to 6000 cycles—ensures years of consistent operation.

Engineered by Haisic, the package includes the efficient HS10kw-T inverter, providing output power between 20kW and 30kW, making it suitable for whole home backup and peak shaving. This LiFePO4 residential ESS combines safety, flexibility, and scalability, offering a future-proof solution for modern home solar energy systems.

Discover how the Haisic 21.5kWh battery can enhance your home’s energy storage capabilities with a reliable, stackable ESS designed for seamless integration and superior performance.

Key Features of Haisic 21.5kWh High Voltage LiFePO4 Home Energy Storage System

The Haisic 21.5kWh battery stands out with advanced features tailored for reliable home solar energy storage. This all-in-one energy storage unit combines performance, durability, and flexibility, making it a smart choice for both off-grid and hybrid grid setups.

Feature	Description
Battery Type	High voltage LiFePO4 (LFP)
Nominal Capacity	21.5 kWh
System Voltage	180–233.6 V
Output Power Range	20 kW – 30 kW
Cycle Life	6000 cycles
Built-in Inverter	Haisic HS10kw-T hybrid inverter included
System Type	Stackable, scalable for expanding storage
Protection Class	IP65 rated for outdoor use
Communication Ports	CAN and RS485 for easy integration
Operating Temperature	-25°C to +60°C (derating >45°C)
Operating Altitude	Suitable for installations below 3000m

Highlights:

• All-in-One design includes battery and hybrid inverter for simplified installation.
• High system voltage improves efficiency and reduces energy loss.
• Stackable design lets you expand storage as your energy needs grow.
• IP65 rated enclosure withstands harsh outdoor conditions.
• Long 6000-cycle lifespan ensures years of consistent backup power.
• Compatible with off-grid and hybrid grid solar systems.

These key features make the Haisic 21.5kWh battery an ideal LiFePO4 residential ESS that supports whole home backup and solar power storage with dependable performance.

For more details on how to pick the right home battery system, see our guide on do I need battery storage?

Technical Specifications of Haisic 21.5kWh High Voltage LiFePO4 Storage

Here’s a quick glance at the key specs for the Haisic 21.5kWh battery, designed as a high voltage LiFePO4 residential ESS for reliable home solar energy systems:

Specification	Details
Battery Capacity	21.5kWh (Nominal), 105Ah
System Voltage	180 – 233.6V
Output Power Range	20kW – 30kW
Battery Type	LiFePO4 (LFP)
Cycle Life	Up to 6000 cycles
Operating Temperature	-25°C to +60°C (derate >45°C)
Protection Class	IP65 (Suitable for outdoor)
Communication Ports	CAN, RS485
System Type	Stackable all-in-one ESS
Inverter Model	Haisic HS10kw-T (Built-in)
Grid Connection	Off-grid, Hybrid grid
Operating Altitude	Below 3000 meters
Warranty	5 to 10 years
Place of Origin	Guangdong, China

This high voltage stackable ESS pairs well with hybrid inverters and offers a powerful whole home backup system solution. Its built-in inverter simplifies setup, making it a plug-and-play fit for most residential installations.

For those looking to enhance their home solar energy system, the Haisic 21.5kWh system delivers solid specs that balance capacity, durability, and performance. Learn more about compatible setups and how this LFP home energy solution can work for you in our detailed guide on battery storage for home.

Benefits and Advantages of Haisic 21.5kWh High Voltage LiFePO4 Home Energy Storage System

The Haisic 21.5kWh battery offers several clear benefits that make it an ideal choice for your home solar energy system. Here’s why this high voltage LiFePO4 storage stands out:

Benefits	Details
Long Cycle Life	Up to 6000 cycles for lasting performance
High Efficiency	Built-in inverter delivers smooth power conversion
Stackable Design	Easily expand your system for more capacity
Wide Operating Range	Works from -25°C to +60°C for varied climates
Robust & Weatherproof	IP65 rated for safe outdoor installation
Hybrid Compatibility	Supports off-grid and hybrid grid setups
High Output Power	20kW – 30kW ensures your whole home backup
Low Maintenance	LiFePO4 chemistry is safe and stable

These features translate to reliable, efficient, and scalable home power storage. Whether you’re upgrading an existing solar setup or looking for an off-grid home power storage solution, the Haisic 21.5kWh provides flexibility and security that many homeowners demand.

Using this LiFePO4 residential ESS means fewer worries about power outages and better energy independence. It’s also a smart choice for reducing reliance on the grid and cutting energy costs over time.

For a seamless upgrade, the system pairs well with the Haisic HS10kw-T inverter, boosting your home’s energy resilience and efficiency. Check out the full range of compatible products to optimize your solar backup at Haisic product offerings.

System Compatibility

The Haisic 21.5kWh High Voltage LiFePO4 Home Energy Storage System is designed to fit seamlessly into various power setups, making it highly versatile. Its all-in-one energy storage design includes a built-in hybrid inverter, specifically the Haisic HS10kw-T model, which supports both off-grid and hybrid grid connections. This ensures smooth integration with existing home solar energy systems or new installations alike.

Thanks to its high voltage stackable ESS design, you can easily expand your power capacity by stacking multiple units, perfect for scaling up your backup power or solar storage needs. The system supports communication via CAN and RS485 ports for effortless monitoring and smart grid compatibility.

Whether you’re setting up a standalone off-grid home power storage or upgrading your whole home backup system, this 21kWh solar backup battery works well with a wide range of hybrid inverter battery packs and residential ESS solutions. For larger commercial or industrial applications, you might consider related high-capacity setups like the Haisic high voltage ESS commercial energy storage system for even greater power demands.

In short, the Haisic 21.5kWh battery offers flexible compatibility, supporting multiple energy architectures to match your home’s energy goals with durable, stackable LiFePO4 technology.

Installation and Design

The Haisic 21.5kWh High Voltage LiFePO4 Home Energy Storage System is designed for easy installation and flexible setup. Its all-in-one energy storage unit includes a built-in hybrid inverter, making wiring simpler and reducing the need for extra components. Thanks to its stackable design, you can expand your system as your energy needs grow, creating a high voltage stackable ESS tailored to your home.

Installation is straightforward—whether you’re adding it to an existing home solar energy system or setting up an off-grid home power storage solution. The system’s IP65-rated enclosure ensures it can be safely installed outdoors, withstanding dust and water splashes, which gives you more options on where to place it.

Key points about installation and design:

• All-in-one unit with integrated inverter simplifies setup
• Stackable battery design for future expansion
• IP65 protection for outdoor or indoor installation
• Wide operating temperature range (-25°C to +60°C) ensures reliability in diverse climates
• Multiple communication ports (CAN, RS485) enable easy integration with monitoring systems

For users interested in a larger or different capacity, the High Volt Stacked 20kWh batteries offer compatible options that work seamlessly with the Haisic 21.5kWh battery series to build scalable energy storage systems.

This system is designed to fit most homes and setups, combining flexibility with robust, user-friendly construction for hassle-free installation and long-term performance.

Safety and Certifications

The Haisic 21.5kWh High Voltage LiFePO4 Home Energy Storage System is built with safety as a top priority. Featuring an IP65 protection class, this all-in-one LiFePO4 residential ESS is designed for reliable outdoor and indoor use, keeping your energy storage safe from dust and water. Its battery chemistry, LiFePO4 (LFP), is known for excellent thermal stability and a lower risk of overheating or fire compared to other lithium batteries.

This system includes multiple built-in safety mechanisms such as overcharge, over-discharge, short circuit, and temperature protections to ensure smooth and secure operation. The built-in inverter also carries necessary safety certifications, meeting international standards to guarantee trusted performance.

Fully compliant with global safety and quality standards, the Haisic 21.5kWh battery offers peace of mind for homeowners looking for a safe, durable, and dependable whole home backup system. These certifications reflect its readiness for demanding home solar energy system applications worldwide.

For more about inverter reliability and safety, check out the Haisic HS10kw-T hybrid solar inverter designed to complement this high voltage stackable ESS.

Applications

The Haisic 21.5kWh High Voltage LiFePO4 Home Energy Storage System is ideal for a wide range of uses in residential and off-grid settings. It excels as a whole home backup system, providing reliable power during outages or grid fluctuations. This LiFePO4 residential ESS perfectly supports home solar energy systems, storing excess energy for use when the sun isn’t shining, ensuring energy independence and savings.

Thanks to its stackable home battery design, it can be scaled up for larger energy demands or hybrid systems, making it a great choice for off-grid homes, cabins, or remote locations needing consistent power. Its all-in-one energy storage design with a built-in inverter simplifies installation, reducing the need for multiple components.

This system is also a fit for those looking for a 21kWh solar backup battery that integrates smoothly with hybrid inverters like the Haisic HS10kw-T model, supporting both grid-tied and off-grid applications. Its solid cycle life and IP65 rating make it reliable outdoors, even in harsher environments.

For larger commercial or industrial needs, you might want to check out related options like the 51.2V 400Ah LiFePO4 battery for expanding your setup.

In , this high voltage stackable ESS works well for:

• Residential solar power storage
• Off-grid and backup power solutions
• Hybrid inverter battery packs
• Remote or off-grid cabins and homes
• Whole home energy backup and load shifting

Its flexibility and robust design ensure dependable performance across diverse energy storage needs.

Warranty and Support

The Haisic 21.5kWh High Voltage LiFePO4 Home Energy Storage System comes with a solid warranty of 5 to 10 years, ensuring reliable performance and peace of mind over the long term. This comprehensive coverage reflects the confidence in the durable 6000 cycle LiFePO4 battery technology used in the system.

In addition to warranty protection, Haisic offers responsive customer support to help with setup, troubleshooting, and system maintenance. Whether you’re integrating the stackable home battery into a new home solar energy system or upgrading an existing off-grid home power storage, the support team is ready to assist.

For detailed warranty terms and to request personalized support, check out our quotes list page where you can also explore additional options and tailored solutions that fit your residential ESS needs.

Customer Reviews and Testimonials

Users of the Haisic 21.5kWh High Voltage LiFePO4 Home Energy Storage System consistently praise its reliable performance and ease of use. Many homeowners appreciate how this all-in-one energy storage solution provides stable backup power during outages, highlighting the battery’s impressive 6000 cycle life and high voltage LiFePO4 technology.

Several customers mention the smooth integration with their home solar energy system and hybrid inverter battery pack, which simplifies energy management while reducing electricity bills. The stackable design and robust IP65 outdoor protection make it a favorite for both on-grid and off-grid setups, adapting well to different residential needs.

Feedback often points out the clear communication interfaces (CAN, RS485) and the straightforward installation process that fits well with modern home solar energy solutions. Users also value the strong after-sales support and warranty coverage, giving peace of mind with this LFP home energy solution.

Overall, the Haisic 21.5kWh battery stands out in customer reviews as a dependable, efficient, and user-friendly whole home backup system.

For more insights, explore our solutions tailored to maximize your home energy storage experience.

FAQ

What is the capacity of the Haisic 21.5kWh battery?

The Haisic 21.5kWh High Voltage LiFePO4 storage system has a nominal capacity of 21.5kWh with a battery capacity of 105Ah, perfect for residential energy needs and solar backup.

Can I stack multiple Haisic batteries for higher capacity?

Yes, this high voltage stackable ESS is designed to be scalable. You can stack multiple units to increase your home energy storage capacity for bigger backup power.

Is the battery compatible with hybrid inverter systems?

Absolutely. It includes a built-in inverter and is compatible with hybrid inverter battery packs, such as the Haisic HS10kw-T inverter that comes integrated with this system.

What is the expected lifespan of this LiFePO4 residential ESS?

The battery offers an impressive cycle life of 6000 cycles, which translates to many years of reliable home solar energy system performance.

Can it be used for off-grid or hybrid grid setups?

Yes, the Haisic 21.5kWh battery supports both off-grid home power storage and hybrid grid connection, giving you flexibility based on your energy needs.

Is the system suitable for outdoor installation?

The unit has an IP65 protection class, making it robust against dust and water, suitable for outdoor energy storage installations.

What temperatures can the battery operate in?

The system works effectively within a temperature range from -25°C to +60°C, with some derating above 45°C.

How long is the warranty on the Haisic 21.5kWh High Voltage LiFePO4 storage?

It comes with a strong warranty period ranging from 5 to 10 years, ensuring peace of mind for your whole home backup system investment.

For more information on complementary battery packs, check out the Haisic 256V 280Ah LiFePO4 battery pack designed for larger storage setups.

Related Products and Accessories

To complement the Haisic 21.5kWh High Voltage LiFePO4 Home Energy Storage System, there are several related products designed to enhance your home solar energy system. Consider pairing it with the Haisic 128V 280Ah LiFePO4 battery pack for additional capacity and flexibility in your off-grid power storage setup. This stackable home battery solution ensures you can scale your energy storage effortlessly as your power needs grow.

For users who want to optimize system performance, accessories like advanced hybrid inverters and communication modules (CAN, RS485) are essential. The Haisic HS10kw-T inverter included with the 21kWh solar backup battery integrates seamlessly, but standalone or additional inverter units can improve hybrid grid compatibility.

Explore also complementary LiFePO4 residential ESS options like the Haisic 128V 280Ah battery packs with 6000 cycle life, which are perfect for expanding your whole home backup system efficiently. These accessories maintain high reliability while supporting the rugged IP65 outdoor energy storage design that suits varied climates.

Browse more about compatible modular battery packs such as the Haisic 128V LiFePO4 Battery Pack 280Ah 35.8kWh to build a robust, scalable solution that fits your home energy needs perfectly.