Your Leading Lifepo4 Home Battery Factory

Delong provides safe, cost-effective home energy storage with a versatile range of systems. From standard models to full OEM/ODM customization, we deliver the power you need.

⚡ Local Delivery: Stock Available in Europe Warehouse

6500+

Deep Cycles

30+

Compatible Inverters

OEM

Available

APP

Smart Monitor

Zero

Maintenance

Low Voltage Battery Solutions for Residential

15kwh Stackable Battery
Stackable Home Battery

5kWh-80kWh. Saves space, parallel expansion, easy to move. Ideal for Installers.

45kwh Lifepo4 Battery
All In One Storage System

5kWh-80kWh. Equipped with inverter, plug & play. For Residential.

Rack Mounted Lithium Battery
Rack Mounted Lithium Battery

5kWh-112kWh. Stable rack design, modular expansion. For Large Houses & Off-grid.

Wall Mount Lifepo4 Battery
Wall Mounted Solar Battery

2.56kWh-20kWh. Slim wall-mount, high safety. Ideal for Home Backup.

Wall Mouted Energy Storage Battery
Powerwall Lithium Battery

5kWh-10kWh. High safety, space-saving wall-mount. Reliable Home Energy Backup.

Wall Mounted Solar Battery

5kWh-48kWh. Slim wall-mount, high energy density. Ideal for Modern Homes.

51.2V 28kwh - 32kwh Lithium Battery
Vertical Whole House Battery

10kWh-32kWh. Touch screen, movable wheels. For Large Home Backups.

5000wh Portable Power Station 15kwh
Home Backup Power Station

5kWh-15kWh. 5kW Inverter built-in, multiple AC ports. Plug & Play Solution.

High Voltage Energy Solutions for Modern Estates

51.2V 400V Lithium Battery Pack HDC15-5k BMS
HDC15-5K

400V 14.4-16kWh. LFP technology, support parallel. High Efficiency Home Power.

400Vdc High Voltage Energy Storage System HSDC15-X
HSDC15

14kWh-48kWh. 400Vdc smart string system. Scalable Energy Solution.

48-80kwh High Voltage Lithium Battery
HV32 Series

30kWh-112kWh. 100V-800V wide voltage range. Ideal for Large Estates.

96kwh 172kwh Battery With Inverter
HVR32-ESS Series

48kWh-225kWh. 300V-700V high voltage rack. For Luxury Residential Projects.

Why Choose Delong LiFePO4 Storage Systems?

Long lifespan

Up to 6,500 charge cycles, reducing your long-term costs

Small Size

High energy density, compact and lightweight, saving space in your home

High Safety

Grade A LiFePO4 cells and smart BMS provide double protection to prevent overcharge, over-discharge, short circuits, and other issues

Expandable Capacity

Connect multiple battery units in parallel to increase capacity, meet your power needs.

Strong Compatibility

Supports RS485 and CAN communication, works with most inverter brands.

High Efficiency

Over 93% Charge/Discharge efficiency, minimizing energy loss.

Low Self-discharge

Keeps power stored even after long periods of non-use.

Maintenance-free

No need for regular water refills or terminal cleaning.

Complete Home Energy Applications

Reliable Power for Solar Storage, Backups, and Off-grid Living

✔ Grid-tied Solar Storage
Stores solar power during the day for use at night or during peak-rate hours. Reduces your grid dependence and lowers electricity bills.

✔ Off-grid Power System
Works with solar or generators for 24/7 power supply. Ideal for areas without grid access.

✔ Backup/Emergency Power
Seamlessly switch to battery power during outages to keep important devices running. Ideal for areas with unstable grids or frequent disasters.

✔ Balcony Solar/Small Home Systems
Portable storage devices work with balcony solar panels, perfect for apartments or small homes. Plug and play, convenient and eco-friendly.

Project Photos from Global Customers

Delong Systems Powering Homes Across Europe and Beyond.

Delong 320 kwh Stackable Lifepo4 battery in Ukraine

320kWh Stackable Lithium Battery —  Ukraine

Large-scale backup power project completed on an urgent timeline, supplied directly from our Europe warehouse.

50 kwh Stackable Lithium battery in Ukraine

50kwh Stackable Home Battery — Ukraine

Scalable stackable system installed for a multi-unit residential property with growing power demands.

Power Bank Portable

50kWh Stackable Battery Bank — Germany

Solar retrofit replacing an aging lead-acid system — modular design enabled phased capacity expansion.

90kwh Stackable Home Battery Backup United Kingdom

90kWh Whole House Battery Backup — UK

Large-capacity backup system for whole-home coverage, expandable in stackable modules over time.

30kwh Movable Lithium Battery in Georgia

30kWh Movable Solar Battery — Georgia

Portable off-grid solution supplied to a local distributor serving rural households with limited grid access.

30kwh Household Battery Storage Germany

30kWh Household Battery Storage — Germany

Compact household storage system paired with rooftop solar, delivering reliable daily backup power.

Powerwall In Germany

20kWh LiFePO4 Powerwall — Germany

Slim wall-mounted system chosen for space-constrained installation, delivering reliable daily backup power.

Delong 256V 100Ah High voltage lithium battery in Ukraine

256V 100Ah High Voltage Lifepo4 Battery — Ukraine

High-voltage backup system deployed amid grid instability, providing reliable power for daily household use.

Your Trusted Home Energy Storage Manufacturer

Delong company is located in Dongguan, China, with 13 years of industry experience. Our 6,000 square meter modern factory produces batteries following ISO international standards. All products go through strict quality tests and are delivered on time. Factory visits and remote video audits are welcome for new partners. We offer OEM and ODM services , and can customize solutions based on your project needs, including voltage, capacity, Bluetooth, communication protocols, LED screens, size, and more, with flexible MOQ for new distributors.

Delong battery packs have guaranteed quality, a 10-year warranty, full certification, affordable prices, and dedicated technical support throughout the product lifecycle. To respond faster to your needs, we have set up a stock warehouse in Europe. If you want to become a dealer or distributor of household battery storages, feel free to contact Delong.

Delong Lifepo4 Battery Global Certifications
Delong Energy Factory
Delong - Lithium Battery Energy Storage System Factory
Battery Storage Packing And Shipping

Frequently Asked Questions

The lifespan of Delong home energy storage battery systems is about 10 years.

Check your current solar system’s basic specs – like the inverter brand, system power and voltage. If you want to expand the system capacity, just contact us anytime.

It depends on your battery capacity and home power usage. You can estimate runtime with this simple formula:

Runtime (hours) = Available power (kWh) ÷ Load (kW)

Delong lithium-ion batteries use Grade A cells from well-known brands and come with a complete BMS protection system. They offer multiple protections, including overcharge, over-discharge, overheating, and short circuit, and have passed many international safety certifications. You can use them safely at home.

Typically 15-25 working days. For standard models, we offer 3-7 day delivery from our Europe warehouse, and self-pickup is also supported for local partners.

Yes. From Logo & Packaging (OEM) to Voltage & Capacity (ODM), we provide full support. We are dedicated to helping distributors build and scale their own local brands.

Get Your Custom Home Battery Solution Today

Factory-direct supply | 24h response by professional sales manager

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