Best SellerEnergy Storage Systems
Factory-Direct ESS Batteries
From China
High-performance LiFePO4 energy storage systems for residential, commercial and industrial applications. Sourced directly from our Shenzhen manufacturing facility with global export capability.
5+Years Manufacturing
50+Countries Served
6000+Cycles Lifespan
98%Customer Satisfaction
Factory Direct Pricing
LiFePO4 Grade-A Cells
Global DDP Shipping
12-Hour Quote Response
CE / IEC Certified
Our ESS Product Range
Complete ESS Battery Solutions
From residential solar storage to large-scale commercial energy storage systems — we manufacture and export every capacity you need.
Best Seller
Popular
Commercial15kWh LiFePO4 ESS
Our flagship 15kWh ESS unit — perfect for large residential, commercial properties and off-grid solar installations.
Capacity
15kWh
Voltage
48V
Chemistry
LiFePO4
Cycles
6000+
CustomCustom ESS Solution
Need a specific capacity, voltage or form factor? Our engineering team designs custom ESS batteries to your exact requirements.
Capacity
Custom
Voltage
Custom
Chemistry
LiFePO4
MOQ
10 Units
Why Our ESS Batteries
Built for Performance & Longevity
Every ESS battery we produce goes through rigorous testing to ensure safety, reliability and maximum lifespan.
Grade-A LiFePO4 Cells
We use only Grade-A prismatic LiFePO4 cells — no second-hand or refurbished cells — for maximum cycle life and safety.
Integrated Smart BMS
Built-in Battery Management System with overcharge, over-discharge, short circuit and temperature protection.
6000+ Cycle Lifespan
Our ESS batteries deliver 6000+ charge cycles at 80% DoD, providing over 15 years of reliable service life.
Wide Temp Operation
Operates reliably from -20°C to +60°C — suitable for hot climates (Middle East, Australia) and cold environments.
RS485 / CAN Communication
RS485 and CAN communication protocols for easy integration with leading inverter brands including Victron, SolarEdge and Deye.
DDP Global Shipping
We handle full export documentation, customs clearance and DDP delivery to your country — hassle-free importing.
CE / IEC 62619 Certified
Our ESS batteries meet CE, IEC 62619 and UN38.3 international safety certifications for confident global import.
Factory-Direct Pricing
No distributor markup. Buy direct from our Shenzhen factory and save 20-40% compared to local resellers.
Technical Specifications
Detailed Specs by Model
| Parameter | 5kWh Model | 10kWh Model |
|---|---|---|
| Nominal Capacity | 5kWh | 10kWh |
| Nominal Voltage | 48V | 48V |
| Cell Chemistry | LiFePO4 | LiFePO4 |
| Cycle Life | 6000+ @ 80% DoD | 6000+ @ 80% DoD |
| Max Charge Current | 50A | 100A |
| Max Discharge Current | 50A | 100A |
| Operating Temperature | -20°C ~ +60°C | -20°C ~ +60°C |
| Communication | RS485 / CAN | RS485 / CAN |
| Protection Class | IP55 | IP55 |
| Certification | CE, IEC 62619, UN38.3 | CE, IEC 62619, UN38.3 |
| Parameter | Value |
|---|---|
| Nominal Capacity | 15kWh |
| Nominal Voltage | 48V |
| Cell Chemistry | LiFePO4 |
| Cycle Life | 6000+ @ 80% DoD |
| Max Charge Current | 150A |
| Max Discharge Current | 150A |
| Operating Temperature | -20°C ~ +60°C |
| Communication | RS485 / CAN / WiFi |
| Protection Class | IP55 |
| Dimensions (H×W×D) | 700 × 450 × 200mm |
| Weight | ~68 kg |
| Certification | CE, IEC 62619, UN38.3 |
| Parameter | 20kWh Model | 30kWh Model |
|---|---|---|
| Nominal Capacity | 20kWh | 30kWh |
| Nominal Voltage | 96V | 96V |
| Cell Chemistry | LiFePO4 | LiFePO4 |
| Cycle Life | 6000+ @ 80% DoD | 6000+ @ 80% DoD |
| Max Charge Current | 200A | 300A |
| Max Discharge Current | 200A | 300A |
| Operating Temperature | -20°C ~ +60°C | -20°C ~ +60°C |
| Communication | RS485 / CAN / WiFi | RS485 / CAN / WiFi |
| Protection Class | IP55 | IP55 |
| Certification | CE, IEC 62619 | CE, IEC 62619 |
Applications
Where Our ESS Batteries Are Used
Our energy storage systems power homes, businesses and infrastructure across 50+ countries worldwide.
Residential Solar
Home solar storage for daily energy independence and backup power.
Commercial Buildings
Offices, retail stores and warehouses reducing peak demand costs.
Off-Grid Systems
Remote areas, farms and cabins with no grid connection.
Industrial Facilities
Factories and manufacturing plants with high energy demands.
Solar Farms
Large-scale solar generation storage and grid balancing.
Telecom Towers
Backup power for telecom infrastructure in remote locations.
Why Synergy Technology
The Smart Choice for ESS Battery Sourcing
- 01
Direct Factory Access
Visit our Shenzhen factory or arrange a virtual tour. No resellers, no middlemen — you deal directly with the manufacturer.
- 02
Grade-A Cells Only
We guarantee Grade-A LiFePO4 cells in every unit — verified with cell capacity test reports provided with each shipment.
- 03
Fast Lead Times
Standard models ship within 7–15 days. Custom orders typically ready in 20–30 days depending on quantity.
- 04
Full Export Support
We handle CE documentation, UN38.3, customs paperwork and DDP delivery to your door — stress-free importing.
- 05
After-Sales Technical Support
Our engineers provide installation guidance, BMS configuration and troubleshooting via WhatsApp, email and video call.
ESS Batteries Built to Last
6000+ cycle life with Grade-A LiFePO4 cells, smart BMS and global certifications — ready for any climate.
FAQ
Frequently Asked Questions
Our standard MOQ is 1 unit for sample orders. For bulk pricing discounts, orders of 5+ units qualify for tier pricing. Container loads (20–40 units) receive our best factory pricing. Contact us on WhatsApp for a custom quote.
Our ESS batteries are compatible with most leading inverter brands including Victron Energy, SolarEdge, SMA, Deye, Growatt, Sungrow, Voltronic and many others via RS485 or CAN communication protocols.
Our ESS batteries carry CE marking, IEC 62619 safety certification and UN38.3 transport test certification. These are required for import into Europe, Australia and most countries worldwide. Test reports are provided with each shipment.
Sea freight (most cost-effective) takes 20–45 days depending on destination. Express air freight takes 5–10 days. We offer FOB Shenzhen, CIF and DDP (delivered duty paid to your door) options. We handle all export documentation.
We offer a 2-year manufacturer warranty on all ESS batteries covering defects in materials and workmanship. Our batteries are designed for 6000+ cycles (15+ years of typical daily use) with Grade-A LiFePO4 cells.
Yes. We accept OEM/ODM orders with custom capacity, voltage, enclosure design and branding. Minimum order for custom projects is typically 10 units. Share your requirements via WhatsApp or our contact form and we'll provide a feasibility assessment within 24 hours.