Find quick answers to common questions.
Find quick answers to common questions about our energy storage systems, solutions, and services. This section is designed to help you better understand our products, technical capabilities, and partnership opportunities.
General Questions
What is the lifespan of your home energy storage system?
Our lithium iron phosphate (LiFePO₄) batteries offer 6,000+ cycles at 90% DoD, ensuring 10+ years of reliable service.
Do you offer OEM/ODM services?
Yes. We provide customized solutions including branding, enclosure design, and BMS parameters tailored to your market needs.
What certifications do your products have?
All Sunming products comply with international standards: CE, IEC, UN38.3, UL (selected models), and RoHS.
How do I monitor my system performance?
Our systems integrate with a cloud-based monitoring platform accessible via web or mobile app, providing real-time data on energy flow, battery status, and savings.
What is your delivery time?
Typically 15-25 working days after order confirmation, depending on order volume and customization requirements.
Do you provide installation support?
Yes. We offer detailed installation manuals, video guides, and remote technical guidance. On-site supervision is available for C&I projects upon request.
What is the warranty period?
Home Storage: 5-10 years
C&I Systems: 5 years
EV Chargers: 2 years
Extended warranty options available.
Can I expand the system later?
Yes. Our modular design allows capacity expansion. For home systems, you can add extra battery modules as your energy needs grow.
What is your minimum order quantity (MOQ)?
Sample order: 1 unit
Bulk order: Negotiable based on model and customization
How do I get technical support?
Contact our support team via email (support@sunmingpower.com) or WhatsApp . Response within 2 hours during business hours.
Product & Technical Specifications
What battery chemistry do you use?
All Sunming systems use Lithium Iron Phosphate (LiFePO₄) cells with over 6,000 cycles at 90% depth of discharge (DoD) , ensuring safety and longevity.
What are the efficiency ratings?
Round-trip efficiency: ≥ 95%
Inverter efficiency: ≤ 97.5%
Battery charge/discharge rate: 0.5C to 1C available
What is the power and capacity range?
Home Storage: 3 kW to 15 kW | 5 kWh to 30 kWh
C&I Storage: 30 kW to 500 kW | 100 kWh to 2 MWh
Mobile Power: 60 kW to 500 kW | 60 kWh to 2MWh
EV Chargers: 7 kW AC to 480 kW DC fast charging
What is the operating temperature range?
Charge: 0°C to 55°C
Discharge: -20°C to 60°C
Built-in battery heating system for cold climates (optional)
What communication protocols are supported?
CAN bus (standard for battery-BMS communication)
RS485, Modbus RTU/TCP (for SCADA and monitoring)
Wi-Fi / 4G (for cloud connectivity)
What is the ingress protection rating?
Home Storage: IP65 (indoor/outdoor use)
C&I Cabinets: IP54
EV Chargers: IP54 to IP65 depending on model
What are the safety certifications?
Cell level: IEC62619, UL1973, UN38.3
System level: CE, RoHS, IEC62477, VDE2510 (select models)
What is the maximum input from solar?
AC coupling: Supports up to 150% of inverter rated power
DC coupling: Built-in MPPT range 120V to 550V, up to 30A per tracker
Order & Logistics
What is your MOQ?
Standard models: 1 unit for samples
Customized OEM: 50 units per model
What are the packaging and shipping details?
Home units: Packed in plywood boxes with foam cushioning
C&I units: 20ft or 40ft HC containers
Delivery: EXW, FOB, CIF available
What is the lead time?
Samples: 20-30 working days
Bulk orders: 20-30 working days after deposit
Warranty & Support
What is covered under warranty?
5-10 years or 6,000 cycles (whichever comes first) for battery capacity retention above 70%
Inverter: 3 years (extendable to 5 years)
Free replacement for manufacturing defects
Do you provide remote firmware updates?
Yes. All EV DC systems support OTA (Over-the-Air) updates via cloud platform.
Advancing Intelligent Energy
What energy storage solutions does Sunming provide?
Sunming develops advanced energy storage systems for residential, commercial, and industrial applications. Our solutions help store excess energy, improve power reliability, and reduce electricity costs.
Can Sunming systems work with solar energy?
Yes. Sunming energy storage systems can integrate with solar power systems to store surplus electricity generated during the day and use it when energy demand increases.
Are Sunming solutions scalable for different projects?
Absolutely. Our systems are designed with modular architecture, allowing them to scale from small residential installations to large commercial and industrial energy storage deployments.
How does energy storage improve energy efficiency?
Energy storage helps balance supply and demand by storing electricity during low usage periods and releasing it when energy demand is high, improving overall efficiency and reducing grid pressure.
Does Sunming provide technical support and services?
Yes. Sunming provides professional technical support, system guidance, and long-term service to ensure reliable performance and optimal energy management for our customers.
Advancing Intelligent Energy
What energy storage solutions does Sunming provide?
Sunming develops advanced energy storage systems for residential, commercial, and industrial applications. Our solutions help store excess energy, improve power reliability, and reduce electricity costs.
Can Sunming systems work with solar energy?
Yes. Sunming energy storage systems can integrate with solar power systems to store surplus electricity generated during the day and use it when energy demand increases.
Are Sunming solutions scalable for different projects?
Absolutely. Our systems are designed with modular architecture, allowing them to scale from small residential installations to large commercial and industrial energy storage deployments.
How does energy storage improve energy efficiency?
Energy storage helps balance supply and demand by storing electricity during low usage periods and releasing it when energy demand is high, improving overall efficiency and reducing grid pressure.
Does Sunming provide technical support and services?
Yes. Sunming provides professional technical support, system guidance, and long-term service to ensure reliable performance and optimal energy management for our customers.
Start Building a Smarter Energy Future with Sunming’s Advanced Storage Solutions
Whether you are planning a residential storage system or a large-scale energy infrastructure project, Sunming provides reliable solutions designed for efficiency, sustainability, and long-term performance.
