Haven Deer 

clean energy,within reach

OEM / ODM Solar Storage Manufacturer

Residential & Commercial Energy Storage Systems

Lithium Battery Solutions for Off-Grid Solar Applications

Residential solar energy storage systems with lithium battery solutions for off-grid home power applications
Wall-Mounted|Mobile|Stackable|Portable

Product Categories

Reliable Solar Energy Storage Solutions for Residential & Commercial Applications

Off-grid home solar PV and energy storage system

Residential Solar Storage Systems

Efficient and reliable energy storage solutions designed for modern households and off-grid solar applications.
✅ Off-Grid Ready
✅ Long Battery Lifespan
✅ Easy Installation
✅ OEM / ODM Support

An operational diagram of an all-in-one ESS showing connections to solar panels, a generator, power grid, and household appliances via DC and AC power lines.

All-in-One ESS

Integrated battery and inverter solutions for efficient residential and commercial energy management.
✅ Compact Design
✅ Plug & Play Solution
✅ Intelligent Energy Management
✅ High Efficiency Output

A white LiFePO4 battery pack with a close-up on its smart LCD display screen showing voltage, SOC percentage, temperature, and operation buttons.

LiFePO4 Solar Batteries

High-performance lithium batteries with enhanced safety, long cycle life, and stable power output.
✅ Grade A Cells
✅ 6000+ Cycles
✅ Safe & Stable
✅ Scalable Capacity

Hybrid Solar Inverters

Smart hybrid inverter solutions compatible with solar systems, batteries, and grid applications.

✅ Pure Sine Wave
✅ MPPT Technology
✅ Smart Monitoring
✅ Wide Compatibility

OEM & ODM Energy Storage Solutions for Global Solar Brands
We support distributors, installers, and solar companies with customized battery and inverter manufacturing services.

Why Choose Us

Reliable OEM & ODM Solar Energy Storage Solutions for Global Partners

A panoramic view of a well-established manufacturing workshop with over a decade of operational history. The spacious facility features a mature, highly organized layout with long assembly lines and active production zones. Rows of standard manufacturing equipment, overhead lighting systems, and clearly marked safety pathways demonstrate years of optimized factory management and industrial expertise.

10+ Years Experience

Trusted by global partners with over a decade of expertise in solar energy storage manufacturing

Engineers presenting customized solar battery solutions on a 3D product screen to international clients in a modern engineering office, showcasing OEM and ODM support for tailored market flexibility

OEM / ODM Support

Flexible customization services tailored to your market and branding requirements.

Strict Quality Control

Every battery system undergoes comprehensive safety and performance testing before delivery.

Export-standard secure pallet packaging and logistics preparation for Haven Deer solar inverters and lithium battery storage systems.

Fast Global Delivery

Efficient global logistics support with fast production lead times and worldwide shipment.

Factory Overview

Advanced production workshop for residential and commercial energy storage systems

Inside a brightly lit electronics manufacturing workshop, several workers are stationed along a green conveyor assembly line. In the center, a worker in a white T-shirt leans over to inspect or assemble white electronic equipment enclosures. Other workers are visible in the background managing different stages of production near storage racks. In the foreground, multiple heavy-duty wooden shipping crates labeled with "UN3480" (indicating lithium-ion batteries) are positioned alongside stacks of white protective foam padding.

Residential Energy Storage Production Line

Skilled technicians assembling lithium-ion energy storage units for residential and commercial use.

Inside a clean and modern battery manufacturing facility, rows of automated capacity grading cabinets (sorting machines) are testing lithium-ion battery cells. Numerous cylindrical or prismatic battery cells are neatly loaded into the testing slots of the equipment, with LED indicator lights showing the test status. A worker wearing anti-static clothing and a face mask may be seen monitoring the control screen or managing the loading and unloading process.

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.

A high-precision 3000W laser welding machine is performing pole welding on a lithium-ion battery module. A bright blue or white laser beam strikes the battery terminals, creating intense, controlled sparks at the welding point. The automated welding head is positioned precisely over the metallic busbars, connecting the battery poles in a clean, state-of-the-art industrial manufacturing environment.

3000W Laser Terminal Welding

Equipped with industrial-grade 3000W laser welding equipment to achieve efficient, accurate, and reliable battery terminal connections.

A worker on an electronics production line is carefully placing a thin, non-conductive insulation sheet (or insulating plate) onto a lithium-ion battery pack. The worker's hands are shown precisely aligning the insulation layer over the battery cells or busbars to prevent electrical short circuits, in a clean and well-lit workshop environment.

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.

A technician or automated system uses an integrated battery comprehensive tester to perform final quality checks on a lithium-ion battery pack. The battery is connected to the testing machine via a specialized test jig and wire harness. The digital display on the tester screen shows real-time parameters such as voltage, internal resistance, and overcurrent protection status, with green "PASS" or red "FAIL" indicators visible on the interface.

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.

Certified Quality & Compliance

Our solar storage products are manufactured in compliance with international safety and quality standards, supporting reliable deployment across residential and commercial energy applications worldwide.

✓CE Certified

    Compliant with European safety standards.

✓ UN38.3 Tested

    Verified for safe lithium battery transportation.

✓ MSDS Available

    Material safety documents available upon request.

✓ IEC Standards

    Strict quality control throughout production.

International product certifications including CE, UN38.3, MSDS, and IEC for Haven Deer solar inverters, lithium batteries, and all-in-one energy storage systems.

Applications

Designed for Residential, Commercial & Off-Grid Applications

An infographic detailing a complete all-in-one home backup power system in a modern residential setting. The left foreground shows the stacked white energy storage unit with an exposed Automatic Transfer Switch (ATS) and two battery modules. Cyan data and power lines illustrate how the system integrates with home critical loads sub-panel (powering fridge, lights, etc.), receives grid power input, and connects to an electric vehicle in the garage, ensuring uninterrupted power for a fully sustainable and resilient home ecosystem.

Residential Energy Storage

Reliable backup power for homes, reducing electricity costs and improving energy independence.

A complete off-grid solar power and battery storage solution designed for remote areas without stable utility power grid access.

Off-Grid Solar Systems

Complete solar storage solutions for remote areas without stable utility power.

A commercial energy storage system (ESS) installed in a modern office building for smart energy management and backup power.

Commercial Backup Power

Stable power supply for offices, shops, warehouses, and small commercial facilities.

Four solar panels installed on the roof of a white RV (campervan) parked on a green field, showing an off-grid solar energy storage system solution.

RV & Mobile Energy

Portable lithium battery solutions for RVs, outdoor travel, and mobile power applications.

An efficient solar power storage system installed in an agricultural and rural area, featuring solar panel arrays and battery storage to meet countryside electricity demands.

Farm & Rural Power

Efficient solar storage systems for agricultural and rural electricity demands.

Emergency Backup

Instant backup power during outages to keep essential devices running safely.

About Haven Deer

Reliable OEM / ODM Solar Storage Solutions Partner

Haven Deer is a professional provider of solar energy storage solutions, specializing in residential and commercial energy storage systems, LiFePO4 batteries, hybrid inverters, and off-grid solar power solutions.

Backed by an experienced engineering team and a mature manufacturing network, we deliver reliable, safe, and cost-effective products to customers worldwide.

From product development and quality control to global delivery and after-sales support, we are committed to helping our partners build competitive energy storage businesses in their local markets.

Learn More About Us
A modern Haven Deer office setting featuring a minimalist privacy workspace pod with an ergonomic chair, warm wooden accents, and indoor plants, designed for a focused and comfortable corporate environment.
10+ Years Industry Experience，OEM / ODM Available
A global market map illustration showing Haven Deer's export network, highlighting that Haven Deer products are successfully distributed to over 20 countries and regions worldwide.
20+ Countries Served，Strict Quality Control
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