16.07kWh–32.15kWh All-in-One Energy Storage System | 6.5kW

Designed for residential and small commercial off-grid and backup power applications, this series combines a 6.5kW hybrid off-grid inverter with 51.2V 314Ah LiFePO4 battery modules in a modular stacked design. With simplified module connections and less complex wiring, the system is available in 16.07kWh single-module and 32.15kWh dual-module configurations, making on-site installation easier while leaving room for future capacity expansion.

  • 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 16.07-32.15kWh All-in-One Energy Storage System

Grade-A LiFePO4 Cells with Intelligent Battery Management

The battery pack uses brand-new Grade-A 314Ah LiFePO4 cells with a cycle life exceeding 6,500 cycles for long-term power stability. The built-in smart BMS monitors cell voltage, current, and temperature in real time to protect against overcharging, over-discharging, and short circuits. A front-mounted 4.3-inch touchscreen enables installers and technicians to inspect operational metrics without external diagnostic tools.

Compact Design with Flexible Installation Options

To accommodate different installation spaces, the 16.07–32.15kWh system supports both floor-stacked and wall-mounted installation. With a depth of only 260mm, it helps reduce the space required for installation. Rated IP21, it is suitable for dry, well-ventilated indoor environments.

• Single module (16.07kWh): 483 × 260 × 1070mm, approx. 136.5kg
• Dual module (32.15kWh): 483 × 260 × 1685mm, approx. 254.5kg

High-Current Output and Surge Power Support

The battery module delivers up to 200A of continuous discharge current and can provide 205A for up to 5 seconds. The recommended charge and discharge currents are 40A and 100A, respectively.

Combined with the inverter’s 10kVA surge power, the 16.07–32.15kWh system can handle everyday loads as well as appliances with higher starting currents, such as air conditioners, water pumps, and small motors.

10ms Backup Switching and Dual AC Outputs

The integrated 6.5kW inverter supports up to 6500W of PV input with an MPPT operating range of 60–450VDC and provides dual AC outputs. During a grid outage, the all in one system switches to backup power in approximately 10ms in UPS mode and delivers pure sine wave AC output. Dual AC outputs make it easier to separate critical loads from higher-power appliances and manage backup power more effectively.

Multiple Power Inputs and Remote Monitoring

Beyond solar PV, the 16.07–32.15kWh all in one system accepts utility grid or diesel generator power to handle changing supply conditions. The inverter features a 3.5-inch LCD screen alongside RS232, RS485, and CAN interfaces. With the optional Wi-Fi module, users and service teams can monitor solar generation, load usage, and battery SoC via mobile app or web browser.

Technical Specifications

Configuration Battery Specification Total Capacity Inverter Output Recommended Applications
LFP51314S × 1 51.2V 314Ah 16.07kWh 6.5kW Residential solar self-consumption and general backup power
LFP51314S × 2 51.2V 314Ah 32.15kWh 6.5kW High-consumption homes, off-grid farms, and small commercial backup

Certifications and Factory Services

• Certifications: The system has passed relevant CE, KC, UN38.3, and IEC 62619 certification and testing requirements. Supporting documentation can be provided for transportation, customs clearance, and project review.

• 10-Year Warranty: The complete system comes with a 10-year warranty and after-sales technical support, giving you continued assistance after project delivery.

• OEM/ODM Services: We provide customization services for brands, distributors, installers, and system integrators, including branding, enclosure colors, communication protocols, and system configurations. You can select the configuration that best fits your target market and project requirements, and our team can also help determine the right system based on load power and required backup time.

Delong Energy Lithium Battery Supplier

Delong Energy Lithium Battery Supplier

Technical Data

Battery Specifications
Model LFP51314S
Nominal Voltage 51.2V
Nominal Capacity 314Ah
Battery Energy 16.07kWh
Charging Current Recommend/40A; Max./100A
Discharging Current Recommend/100A; Max./200A;
Peak/205A(5 sec.)
Discharging Cut-off Voltage 57.6V±0.2V
Charging Cut-off Voltage 44.8V±0.2V
HMI Interface 4.3-inch Touch Display Screen
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 16.07kWh + 6.5kW 32.14kWh+6.5kW
Battery Module Model*Number LFP51314S * 1 LFP51314S*2
Energy(kWh) 16.07 32.15
Overall size(mm) 483*260*1070 483*260*1685
Overall Weight(Kg) ≈136.5 ≈254.4
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)

PDF Download

Datasheet – 51.2V Wall Mounted & Stackable Battery

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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