Deye MJS Solutions

Deye SE-G5.1

5.12 kWh Low Voltage LiFePO4 Battery with 6000+ cycle life and IP20 protection.

Models Covered: DEYE-SE-G5.1

Manufacturer: Ningbo Deye Technology Co., Ltd.

Application: The Deye SE-G5.1 is a high-performance LiFePO4 battery designed for efficient energy storage, ideal for residential and commercial applications. Built with safety and scalability in mind, it delivers consistent power while supporting long-term use. Expandable up to 64 units in parallel for a maximum of 327 kWh storage capacity.

Technical Specifications

Technical Specifications
Parameter DEYE-SE-G5.1
Additional Specifications
Usable Energy 4.1 kWh
Communication Port CAN2.0, RS485
Operating Voltage 44.8~57.6 V
Recommend Depth of Discharge 80%DoD
Nominal Energy 5.12 kWh
Mounting Options Floor/Wall/Rack
Battery Data
Battery Type / Chemistry LiFePO4
Battery Energy Capacity 100 Ah
Max Charge Current 50A (100A peak)
Max Discharge Current 50A (100A peak)
Recommended DoD 80%
Cell / Pack Configuration 1P16S
Electrical / AC Output Data
Peak Current 100A(10 sec)
Status Indicator 3LED (working, alarming, protecting)
Nominal Voltage 51.2 V
Operating Voltage Range 44.8-57.6 V
Mechanical Data
Installation / Mounting Wall-Mounted, Floor-Mounted ( Stacked ) , Rack-Mounted
Protection Features
IP Rating IP20
Communication
Communication Interface CAN2.0, RS485
Operating Conditions
Max Altitude ≤2000m
Relative Humidity 0 ~ 95
Storage Temperature Range 0℃~35℃
Operating Temperature Discharge:-20℃~55℃
Charging Temperature Range 0 to 55 °C
Discharging Temperature Range -20 to 55 °C

Figures are measured at the test conditions the manufacturer’s datasheet states. A dash means the manufacturer publishes no figure for that model.

Availability & grid compliance in Yemen

Market Yemen
Grid authority / regulator Public Electricity Corporation (PEC), Ministry of Electricity and Energy
Quotation currency YER
Support hours timezone Asia/Aden
Delivery & installation coverage Sana'a, Aden, Taiz, Al Hudaydah, Mukalla

Figures on this page are the manufacturer's own, measured at the test conditions the datasheet states — they do not change by country. What changes is the approval that has to be met before the unit is energised: in Yemen that is Public Electricity Corporation (PEC), Ministry of Electricity and Energy. Confirm the grid code, import requirements and any local certification with them, or with us, before you order.

Key Features & Technical Highlights

  • 5.12 kWh Capacity: 100Ah nominal capacity with efficient LiFePO4 chemistry
  • Scalable to 327 kWh: Connect up to 64 units in parallel for large installations
  • 6000+ Cycle Life: Long-lasting performance at 80% depth of discharge
  • 5 Year Warranty: Comprehensive manufacturer warranty included
  • Wide Temperature Range: Operates from -20°C to 55°C for various climates
  • Smart Monitoring: 5 LED indicators and remote monitoring support

Frequently Asked Questions

How many SE-G5.1 units can I connect together?

You can connect up to 64 SE-G5.1 units in parallel, providing a maximum storage capacity of 327 kWh. This makes it suitable for both residential and small commercial installations.

What inverters are compatible with the SE-G5.1?

The SE-G5.1 is designed to work with DEYE hybrid inverters and other compatible 48V low-voltage inverter systems. It features CAN2.0 and RS485 communication for seamless BMS integration.

What is the expected lifespan of the SE-G5.1?

With proper use at 80% depth of discharge, the SE-G5.1 offers over 6000 charge cycles. This translates to approximately 15-20 years of service life under normal residential usage patterns.

Can I install the SE-G5.1 outdoors?

The SE-G5.1 has an IP20 rating, which means it should be installed in a protected indoor environment or weatherproof enclosure. It's not designed for direct outdoor exposure.