5KW Hybrid Home Solar Power System with 20KWh Battery

PowerWhale A20 5KW 20KWh Home Solar Power System

PowerWhale A20 Off Grid Home Solar Power system

The 5KW Hybrid Home Solar Power System with 20kWh Battery is designed to meet the energy demands of high-consumption households with 4 to 5 family members. Combining a robust 5KW hybrid inverter with a large-capacity 20kWh lithium battery, this system ensures a stable power supply for daily use and emergency backup. It seamlessly integrates with solar panels to store excess energy generated during the day, which can be used at night or during peak hours, significantly reducing reliance on the grid. Whether you’re powering air conditioners, kitchen appliances, or home electronics, this system delivers efficient and uninterrupted energy tailored to modern living. It’s an ideal solution for families seeking greater energy independence, lower electricity costs, and a more sustainable lifestyle.

Easy to install and move

Outstanding battery performance and durability

Modular battery design for easy expansion

Continuous power supply with automatic switching

Pure sine wave output, equipment-friendly

5kWh-10kWh Household stackable LiFePO4 battery series

5.5KW / 20.48kWh Home Solar System

Product Performance & Advantages

This Home solar power system combines a 5KW high-efficiency hybrid inverter with a 20kWh lithium battery, delivering stable, intelligent energy management for modern households. Designed for both on-grid and off-grid use, it automatically prioritizes solar, battery, or grid input based on real-time energy demands, maximizing solar utilization and ensuring reliable backup power.

The integrated smart Battery Management System (BMS) ensures safe operation with protections against overcharge, over-discharge, overcurrent, and temperature extremes. During grid outages, the system switches seamlessly to battery power, keeping essential appliances running without interruption.

Key Advantages:

  • Ample Storage Capacity: With 20kWh of lithium storage, this Home solar power system meets the daily energy needs of high-consumption families, including air conditioning and kitchen appliances.

  • Long-Term Reliability: Over 6000 battery cycles at 80% depth of discharge ensure durable, low-maintenance performance.

  • Smart Control & Flexibility: The inverter supports multiple working modes for optimized energy flow.

  • Scalable Solution: Easily expandable to match future energy growth or larger solar arrays.

  • Clean & Quiet Operation: Suitable for residential use with no noise or emissions.

  • Eco-Friendly Savings: This Home solar power system helps reduce electricity bills and reliance on the grid while cutting carbon emissions.

Whether for daily solar use or emergency backup, this Home solar power system offers a sustainable and cost-effective solution for households aiming for energy independence.

5kWh-10kWh Home Storage system
5kWh-10kWh Solar Power System

PowerWhale A20 5.5KW / 20.48kWh Home Solar Power System

ModelPowerWhale A20
Rated Voltage51.2V
Working Voltage Range42-58.4V
Charging Voltage58.4V
Rated Capacity400AH
Energy20.48KWH
Rated Charging Current100A
Peak Charging Current100A
Rated Discharging Current100A
Peak Discharging Current150A
Charging Temperature0℃~15
Discharging Temperature-10℃~55
Optimum Operating Temperature15℃~25
Cooling MethodNatural Cooling
Relative Humidity5℃~95
Altitude≤2000M
Cycle Life≥4000 @800DOD,0.5C/0.5C, 25
Communication InterfacesCAN/RS485/RS232
ProtectionOver-temperature, over-current and over-voltage protection
Design Lifetime≥10 years
Dimension L*W*H600*450*1037
Weight225KG
Battery typeLiFePO4
ESS hybrid inverter 
Inverting mode 
Output Voltage WaveformPure sine wave
Rated Output Power (VA)6000
Rated Output Power (W)5000
Rated Output Voltage (Vac)220/230Vac
Output Voltage Error±5%
Output Frequency Range (Hz)50/60HZ
AC charge 
Charging Voltage Range40-60Vdc
Charging Current Error±5Adc
Maximum Charging Current60A
Solar charge 
Maximum PV Open-Circuit Voltage500Vdc
PV Operating Voltage Range120-500Vdc
MPPT Voltage Range120-500Vdc
Battery Voltage Range40-60Vdc
Maximum Output Power5000W
Noise Emission (dB)<35
Operating Temperature Range-15℃~55
Storage Temperature Range25℃~55

Why choose BESTWE as your preferred supplier to enter the clean energy industry?

BESTWE wholesaler support policy
We provide the following services to each of BESTWE’s wholesaler customers:

Improve customers’ local sales performance:
1. Provide local small distributor information for free.
2. Provide a large amount of local terminal buyer purchasing information for free;

Improve customer local visibility:
1. Provide free promotional materials according to customer needs, such as: roll-up banners, posters, banners, flyers, and brochures.
2. Assist customers to customize uniform clothing and large customer brand parasols.
3. Invite customers to participate in local large-scale industry exhibitions.

When you need to purchase in bulk or customize products in bulk, you can apply for free samples and free product customization services from us.

You only need to pay the upfront sample customization fee. When you confirm the product and place the order, we will fully refund all the upfront sample fee/customization fee.

1. On-site survey and demand analysis: Send a professional team to the African customer location to conduct on-site surveys to understand the customer’s electricity needs, local climate conditions and electricity usage habits in order to tailor suitable solar solutions.

2. Customer education and training: Introduce the working principle, advantages and scope of application of solar energy systems to customers, help customers understand the potential value of solar energy systems, and provide training on system use and maintenance.

3. Solution design and customization: Tailor-made solar system solutions for customers based on their actual needs and on-site conditions, including component selection, layout design, battery capacity planning, etc.

4. Technical support and consultation: Provide customers with technical consultation and support on solar energy systems, answer customer questions, and ensure that customers have a clear understanding of solar energy systems.

5. Product display and demonstration: Show the company’s products and solutions to customers, and help customers better understand product performance and application scenarios through technical demonstrations and case sharing.

6. Partnership establishment: Establish contact with local partners, government departments or NGOs to jointly explore cooperation opportunities and promote the development of the local solar market.

1. Product selection and customization: Based on customer needs and project requirements, we provide suitable off-grid solar product selections, including solar panels, inverters, batteries, etc., to meet customers’ specific needs.

2. Technical support and consultation: Provide technical consultation and support, answer customers’ questions about off-grid solar systems, and help customers understand technical specifications, performance parameters, and system design requirements.

3. Order processing and confirmation: Assist customers to complete the order processing process, including confirming product specifications, quantity, price, delivery method, etc., and ensuring the accuracy and completeness of order information.

4. Logistics and transportation arrangements: Cooperate with logistics partners to arrange the transportation and distribution of products to ensure that products arrive at the destination designated by the customer on time.

5. Payment and settlement: Provide flexible payment methods, accept wire transfer, credit card and other payment methods according to customer requirements, and ensure the security and transparency of the payment and settlement process.

1. Installation guidance: Provide remote or on-site installation guidance to help customers install off-grid solar systems correctly and ensure that the system can operate normally.

2. Equipment maintenance and troubleshooting: During the operation of the system, if the customer encounters equipment failure or other problems, we will provide technical support and maintenance services to solve the problem as soon as possible and restore the normal operation of the system.

3. Remote monitoring and maintenance: Through the remote monitoring system, we can monitor the performance of the customer’s off-grid solar system in real time, discover and solve potential problems in a timely manner, and ensure the stable operation of the system.

4. After-sales training: Provide customers with training on the use, maintenance and management of off-grid solar systems to help customers better understand the key points of system operation and maintenance.

5. Parts supply: If customers need to replace parts of the off-grid solar system or increase system capacity, we will provide corresponding parts supply and technical support.

6. After-sales consultation and support: Provide customers with after-sales consultation and support services, answer their questions about system operation, maintenance and upgrades, and ensure that customers have a clear understanding of off-grid solar systems.

In order to enhance our market competitiveness, BESTWE offers all products at a price 10% to 20% lower compared to our competitors while maintaining the same configuration and quality. We firmly believe that by providing cost-effective solutions, our customers will gain a stronger foothold in the market, fostering mutual growth and development between both parties.

Note: We are a manufacturer of prepaid household solar inverter storage systems, household solar system components, and solar-powered home appliances. We also offer a proven PAYGo (pay‑as‑you‑go) platform that can be white‑labeled and deployed under your own brand. At this time, we only accept OEM/ODM and wholesale orders — we do not sell retail. (Unless you have other purchases in China that can be combined into one shipment, the international freight costs may be prohibitive for small orders.)

Contact us for the most cost-effective factory wholesale prices and dealer support policies


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