All-in-One Solar Energy Storage System 5kWh–60kWh LiFePO4 ESS for Residential & Commercial Use
This all-in-one solar energy storage system (ESS) arrives ready-to-install, seamlessly integrating Grade A LiFePO4 batteries, a high-efficiency inverter, and an intelligent BMS into one sleek, durable unit.
Quick Specs
| Model | Solar panels | Inverter | LiFePO4 battery | SKU |
|---|---|---|---|---|
| 5kWh | 610W*8pcs | 5.5kW*1pcs | 5.12kWh*1pcs | S005 |
| 10kWh | 610W*16pcs | 5.5kW*2pcs | 10.24kWh*1pcs | S010 |
| 15kWh | 610W*24pcs | 5.5kW*3pcs | 15.36kWh*1pcs | S015 |
| 20kWh | 610W*32pcs | 10kW*2pcs | 10.24kWh*2pcs | S020 |
| 30kWh | 610W*48pcs | 10kW*3pcs | 15.36kWh*2pcs | S030 |
| 40kWh | 610W*64pcs | 10kW*4pcs | 10.24kWh*4pcs | S040 |
| 50kWh | 610W*80pcs | 10kW*5pcs | 10.24kWh*5pcs | S050 |
| 60kWh | 610W*96pcs | 10kW*6pcs | 15.36kWh*4pcs | S060 |
Tailored to Your Needs: Contact our engineering team for a Free System Design, capacity recommendations, and an official quote.
Low MOQ: 1 set minimum order — perfect for home evaluation or sample testing.
About Manufacturer
Haven Deer is a professional OEM/ODM manufacturer of solar energy storage systems.
Our engineering team focuses on residential and commercial energy storage solutions using Grade A LiFePO4 battery technology.
Products are manufactured in cooperation with an experienced battery production facility with more than 10 years of industry experience.
Key Features
This all-in-one solar energy storage system (ESS) arrives ready-to-install, seamlessly integrating Grade A LiFePO4 batteries, a high-efficiency inverter, and an intelligent BMS into one sleek, durable unit.
Multiple Capacity Options (5kWh – 60kWh)
Scalable power that fits any project—perfect for off-grid cabins, suburban family homes, and light commercial buildings.
10,000+ Deep Cycle Life
Engineered with premium Grade A lithium cells. It outlasts standard solar batteries by years and remains 100% stable in extreme heat or freezing cold.
Plug-&-Play Smart Automation
Automatically harvests solar power during the day and runs your home at night. Effortlessly powers heavy loads like central AC, refrigerators, water pumps, and entertainment systems.
Worry-Free Setup & Support
No complex engineering required. Every system comes with free 1-on-1 remote installation guidance and a solid 5-year factory warranty.
Global OEM/ODM Partner
Need customized voltage, tailored capacity, or your own brand logo? We offer full customization and drop-shipping support for international distributors and installers.
Payment
Payment
SWIFT(T/T) / HK CHATS
Currencies
AUD, CAD,CHF, CNY, DKK, EUR, GBP, HKD, JPY, NOK, NZD, SGD, USD
Payment terms
T/T30% deposit paid against your P.O.，70% paid against invoice be issued after pre-shipment inspection.
Global Shipping: Any Incoterm Welcome
To ensure a smooth and compliant delivery of your solar and energy storage systems, we support 100% of international trade terms (including EXW, FOB, CIF, DAP, DDP, and more). Whether you want to manage your own logistics or prefer us to handle everything—including customs clearance and duties—we’ve got you covered.
Our Guarantee: Warranty & Returns
What You Need to Know Before Buying:
5-Year Coverage
Fully backed by our 5-year hardware warranty and professional lithium-ion performance guarantee.
Hassle-Free Support
Technical claims are verified remotely by our engineering team to provide genuine replacement parts quickly.
Return Terms
Standard products can be returned within 30 days (unused, original packaging) subject to a 35% restocking fee. Logistics/customs fees are assumed by the buyer.
Exclusions
Labor costs for installation/removal, international return freight, and custom-made orders are not covered.
We highly value your infrastructure investment. Please review our full terms prior to finalizing your order.
Certified Safety & Global Compliance
Our home energy systems are fully CE and RoHS certified, meeting the highest safety standards for residential installation, and fully compliant with UN38.3 & MSDS
for seamless global shipping.
Buying Guide
| Capacity | Target Group | Best For… |
| 5kWh – 10kWh | Cabins & Small Apartments | Essential Backup (Lights, Fridge, TV, Router) |
| 15kWh – 20kWh | Standard 3-5 Bedroom Homes | Full-House Off-Grid Living (AC, Washer, Pumps) |
| 30kWh – 40kWh | Luxury Estates & Small Offices | Multi-day Autonomy & Heavy Appliances |
| 50kWh – 60kWh | Eco-Resorts, Farms & Light C&I | Micro-Grid Power & Commercial Continuous Loads |
Parts & Specs
| Item | Specification |
|---|---|
| Battery Type | LiFePO4 |
| Capacity | 5-60kWh |
| Inverter Type | Hybrid |
| Cycle Life | 10,000+ |
| Communication | CAN / RS485 |
| Protection | Smart BMS |
| Installation | Wall-Mounted |
Factory Overview
Advanced production workshop for residential and commercial energy storage systems
Residential Energy Storage Production Line
Skilled technicians assembling lithium-ion energy storage units for residential and commercial use.
Precision Cell Pairing with ≤0.5% Capacity Deviation
Capacity deviation between paired cells is controlled within 0.5% for optimal reliability.
Battery Module Assembly & Stacking
Each module is meticulously handled to maintain precision and reliability throughout the battery system.
3000W Laser Terminal Welding
Equipped with industrial-grade 3000W laser welding equipment to achieve efficient, accurate, and reliable battery terminal connections.
Insulation Board Installation
High-quality insulation boards are installed between battery components to prevent short circuits and enhance electrical safety and structural stability.
Charge & Discharge Cycle Test
Strict cycling tests are conducted to evaluate battery durability, energy efficiency, and lifespan under repeated operating conditions.
Comprehensive Battery Testing
Each battery pack undergoes rigorous integrated testing for voltage, current, capacity, and internal resistance to ensure optimal performance, safety, and reliability before shipment.
Professional Packing for Safe Delivery
Robust wooden crates and precise packaging methods protect battery systems during transport, guaranteeing they reach customers in perfect condition.
Quality Testing & Diagnostic Equipment
Full-lifecycle inspection and precision burn-in diagnostics for premium quality control.
Thermal Shock & Environmental Testing
High-temperature environmental test chamber at facility, simulating extreme thermal conditions for solar inverters and lithium batteries
Mobile Battery Aging Testing
A portable battery aging tester and compact testing unit performing mobile reliable burn-in diagnostics
Precision Battery Laser Welding
A skilled technician using a precision laser spot welding machine to connect Grade-A cells for LiFePO4 battery pack assembly.
Charge & Discharge Cycle Test
Strict cycling tests are conducted to evaluate battery durability, energy efficiency, and lifespan under repeated operating conditions.
Comprehensive Battery Testing
Each battery pack undergoes rigorous integrated testing for voltage, current, capacity, and internal resistance to ensure optimal performance, safety, and reliability before shipment.
Logistics & Packaging Preparation
Professional packaging and logistics preparation for secure transit.
Applications
Residential Solar Energy Storage
Store excess solar energy and reduce electricity bills.
Off-Grid Solar Systems
Reliable power for cabins, remote homes and rural properties.
Farm Energy Storage
Stable power supply for irrigation systems and agricultural equipment.
Small Commercial Energy Storage
Backup power for offices, retail stores and workshops.
Who Is This System Suitable For?
This system is ideal for:
• Homeowners seeking energy independence
• Off-grid cabins
• Farms and agricultural facilities
• Small businesses
• Solar installers
• Energy storage distributors
FAQ
What is an all-in-one solar storage system?
An all-in-one solar storage system combines a LiFePO4 battery, hybrid inverter, BMS and monitoring system into a single unit for easy installation and reliable energy storage.
Can this system work completely off-grid?
Yes. The system is designed for off-grid operation and can power homes, cabins, farms and remote locations using solar energy.
How long does the battery last?
The LiFePO4 battery provides more than 10,000 cycles and can operate for over 10 years under normal conditions.
Can I expand the battery capacity later?
Yes. Multiple battery modules can be connected to expand capacity from 5kWh up to 60kWh.
Are you a factory?
No, we’re a brand that works exclusively with one factory where we hold technical shares. The factory focuses on production; we focus on everything else — quality control, order management, logistics, and long-term support. This gives you factory-direct consistency with brand-level accountability.
What types of solar products do you offer?
We supply inverters, energy storage battery packs, all-in-one energy storage systems, and full kits of solar panels + inverters + battery packs. Contact us to request a quote for your specific setup.
How does you ensure product quality?
We ensure quality at every stage:
Rigorous testing – Each unit undergoes 100% factory testing before shipment
International certifications – CE, RoHS, MSDS, UN38.3, and STA Report
Warranty –5 years standard warranty with technical support
This guarantees long-term, stable performance.
What is your production capacity?
We maintain ready stock for immediate delivery and have flexible production capacity to handle large rush orders. For specific volume inquiries, please contact us with your requirements.
Can you guarantee on-time delivery?
We will evaluate delivery feasibility based on your order and production schedule, and only make commitments we can keep. Once we commit, we fully honor it.
Do you support OEM or customized solutions?
We offer ODM/OEM services, but for custom work on electrical architectures, intelligent strategies, and underlying processes, we’ll need to assess your requirements first to determine feasibility.
What certifications are available?
CE, UN38.3, MSDS and other documents are available upon request.