10.24kWh–20.48 kWh All-in-One Energy Storage System | 6.5kW Inverter
Delong’s 51.2V 6.5kW all-in-one energy storage system combines LiFePO4 battery storage with a hybrid off-grid inverter in one modular solution. Available in 10.24kWh, 15.36kWh, and 20.48kWh configurations, the system supports both stacked and wall-mounted installation for residential energy storage, small commercial applications, and off-grid power systems.
- 51.2V 100Ah All-in-one ESS
- 51.2V 200Ah All-in-one ESS (EU Stock)
- 51.2V 228Ah All-in-one ESS (EU Stock)
- 51.2V 300Ah All-in-one ESS (EU Stock)
- 51.2V 314Ah All-in-one ESS (EU Stock)
- Brand: Delong Energy
- Sample: Available For Test
- Service: 10 Years Warranty
- Support: OEM, ODM, OBM, Customized
- Certificates: CE, UL, MSDS, IEC, UN38.3, ISO, etc.
Price: Click The Button Below To Get A Discount Price.
Features of 6.5kW All-in-One Energy Storage System 51.2V 100Ah
Flexible Modular Configuration
You can configure the system with 2–4 battery modules to match your project requirements, with capacities ranging from 10.24kWh to 20.48kWh.
- 2 modules: 10.24kWh
- 3 modules: 15.36kWh
- 4 modules: 20.48kWh
Easy Installation & Wiring
The battery modules use a plug-in connection design, allowing them to connect directly without complex wiring between modules. Side-mounted ports provide easy access for external cables, while built-in handles make the modules easier to move and install on site.
Integrated 6.5kW Hybrid Inverter
The system integrates a 6.5kW hybrid inverter with up to 6500W of PV input and a PV input voltage range of 60–500VDC. With a peak output of 10kVA, it can handle the startup power requirements of loads such as air conditioners and water pumps. Dual AC outputs allow essential and non-essential loads to be managed separately, while a 10ms UPS transfer time provides fast backup power during grid outages.
Grade-A LiFePO4 Cells & Smart BMS Protection
The battery uses Grade-A LiFePO4 cells with a cycle life of 6,500+ cycles and a design life of over 10 years, helping reduce replacement frequency and long-term operating costs. Each battery module is equipped with an independent BMS that continuously monitors voltage, current, and temperature and provides protection against overcharge, over-discharge, overcurrent, short circuits, and abnormal temperatures. A 3.5-inch LCD screen allows installers to view operating data and adjust system settings for easier installation, commissioning, and maintenance.
CAN/RS485 Communication & Remote Monitoring
The system is equipped with CAN, RS485, and RS232 communication interfaces, along with built-in Wi-Fi. Users and service teams can view operating data, monitor system status, and perform remote diagnostics via an app or web platform.
Applications
- Residential Backup Power: Keeps essential household loads such as refrigerators, lighting, air conditioners, and communication equipment running during grid outages.
- Small Commercial & Workshop Applications: Supports daily energy use and backup power needs for shops, offices, farms, and small workshops.
- Off-Grid & Remote Areas: Works with solar PV and generators to provide independent power where grid access is unavailable or unreliable.
Certifications & Documentation
Delong provides relevant certifications and documentation for this 6.5kW all-in-one energy storage system, including CE, IEC, KC, MSDS, and UN38.3, to support transportation, installation, and compliance requirements in different markets.
Lithium Battery Certification
OEM/ODM Services
Delong operates a 6,000 m² production facility supported by a professional engineering team. We provide OEM, ODM, and OBM services for distributors, installers, and energy storage brands. Whether you need custom logos, enclosures, voltage and current specifications, communication methods, or system configurations, our team can support your specific project requirements, along with a 10-year warranty.
Delong Energy Lithium Battery Supplier
Technical Data
| Battery Specifications | |||
|---|---|---|---|
| Model | LFP51100 | ||
| Nominal Voltage | 51.2V | ||
| Nominal Capacity | 100Ah | ||
| Battery Energy | 5.12kWh | ||
| Charging Current | Recommend/30A; Max./50A | ||
| Discharging Current | Recommend/50A; Max./100A; Peak/105A(5 sec.) |
||
| Discharging Cut-off Voltage | 57.6V±0.2V | ||
| Charging Cut-off Voltage | 44.8V±0.2V | ||
| HMI Interface | 3.5 inch LCD | ||
| Inverter Specifications | |||
| Model | DL48-S6.5 | ||
| AC Input | |||
| Rated Input Voltage (VAC) | 208 / 220 / 230 / 240; L + N + PE | ||
| Voltage Range (VAC) | 90~280±3 (normal mode);
170~280±3 (UPS mode) |
||
| Frequency (Hz) | 50Hz/60Hz (Auto detection) | ||
| AC Output | |||
| Rated Capacity (kW) | 6.5 | ||
| Surge Power (kVA) | 10 | ||
| Voltage (VAC) | 208 / 220 / 230 240 | ||
| Power Factor (PF) | 1 | ||
| Frequency | 50/60Hz±0.1% | ||
| Switch Time (ms) | 10 (normal mode) / 10 (UPS mode) | ||
| Wave Form | Pure Sine Wave | ||
| Overload Capacity (Battery Model) | 1min@102%~110% load;
10s@ > 110% load |
||
| Max. Efficiency (Battery Mode) | 93%@48VDC | ||
| Charger (PV / AC) | |||
| Solar Charger Type | MPPT | ||
| Max PV Input Current / Input Power | 27A / 6500W | ||
| Max PV Open Circuit Voltage (VDC) | 500 | ||
| Max PV Charge Current (A) | 100 | ||
| Max AC Charge Current (A) | 100 | ||
| Interface | |||
| HMI Interface | 3.5 inch LCD | ||
| Interface | RS232/RS485/CAN | ||
| Monitoring | WiFi (optional/external) | ||
| All-in-one Machine Specifications | |||
| Item | 10.24kWh + 6.5kW | 15.36kWh+6.5kW | 20.48kWh+6.5kW |
| Battery Module Model*Number | LFP51100 * 2 | LFP51100*3 | LFP51100*4 |
| Energy(kWh) | 10.24 | 15.36 | 20.48 |
| Overall size(mm) | 483*220*1390 | 483*220*1840 | 483*220*2290 |
| Overall Weight(Kg) | ≈105.5 | ≈150 | ≈193 |
| General Specifications | |||
| Ingress Protection | IP21 | ||
| Operating Temperature | 0℃to 55℃,>45℃ drop runs | ||
| Relative Humidity | 5% to 90% (Non-Condensing) | ||
| Storage Temperature | -10℃~55℃ | ||
| Max.Operating Altitude | 4000m(Derating above 1000m) |
FAQ
1. Is Delong Energy a lithium battery factory?
Delong Energy is a battery factory with 11 years of experience, which integrates research, development, production, and sales.
2. How about the quality of lithium battery products from Delong Energy?
Delong Energy has a strong R&D team and a set of international certifications, including MSDS, UN38.3, FCC, IEC62133, CE, UL, KC, BIS, CB, ROHS, and ISO9001:2015 certified.
3. Can you do An OEM/ODM project?
We have engineers who can help you design and R&D any related products.
4. Can you customize the battery pack for more function?
Yes, we have a professional engineering team to provide an excellent solution for you.
5. Do you have MOQ?
No limited.
6. Can I have samples to test? And what is the lead time for a sample order?
Yes, we can supply samples. The lead time for samples is 3-5 days. The buyer pays for the sample cost and shipping cost.
7. What is your term of payment?
We adopt T/T, Paypal, Alibaba payment way, Credit Card, Visa, Echecking, Master Card, Trade Assurance, etc.
8. Do you provide after-sales service?
Yes, the battery warranty is 10 years. If there are any quality problems on our side in this period, we can send a new one as a replacement.
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