Deye

Deye SE-G5.1-PRO-B

The certification-heavy Pro-B: the full 5.12 kWh usable, 100 A charge and discharge, optional charging down to -20 degrees Celsius and a 19-inch rack format with a 10-year stated warranty.

Models Covered: DEYE-SE-G5.1-PRO-B

Manufacturer: Ningbo Deye Inverter Technology Co., Ltd

Application: Specifiers who must document safety choose by the certificate list, and the Deye SE-G5.1 Pro-B's is long: UL1973, UL9540A, IEC62619, VDE2510-50, CEI 0-21, FCC, UK, CE and UN38.3. Inside the 19-inch-rackable, 440 x 133 x 540 mm chassis, the full 5.12 kWh is listed as usable, charge and discharge each reach 100 A with a 150 A peak, and a 125 A two-pole 60 Vdc breaker guards the terminals. Charging is specified from 0 to 55 degrees Celsius, with an option extending it to -20 for cold climates, while discharge spans -20 to 55. Systems scale to 64 units in parallel - 32 without external hardware - toward a stated 327 kWh maximum, communicating over CAN2.0 and RS485. Natural cooling keeps the 45 kg module fanless, the cells are rated past 6,000 cycles with 16 MWh of throughput, and Deye states a 10-year warranty. Wall, floor and rack mounting are all supported.

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Technical Specifications

Parameter DEYE-SE-G5.1-PRO-B
Battery Data
Energy 5.12 kWh
Usable Energy 5.12 kWh
Max. Capacity 327 kWh
Nominal Voltage 51.2 V
Operating Voltage 43.2-57.6 V
Rated Capacity 100 Ah
Cell Chemistry LiFePO4
Cycle Life >6000
End-of-Life Capacity 70%
Energy Throughput 16 MWh
Recommended Depth of Discharge 90%
Max. Charge Current 100 A
Max. Discharge Current 100 A
Max. Charge/Discharge Current 100 A
Recommended Charge/Discharge Current 50 A
Peak Discharge Current 150 A
Min. Battery Module Quantity 1
Parallel Units 64 (32 without external)
Built-in Circuit Breaker 125A 2P, 60Vdc
Warranty (Years) 10
Mechanical & Interface
Communication Ports CAN2.0, RS485
Dimensions 440 x 133 x 540 mm
Status Indicator 5LED (SOC 20%-100%), 3LED (working, alarming, protecting)
Weight 45 kg
Environment & Protection
Altitude <2000 m
Charge Temperature 0-55 (optional -20) °C
Discharge Temperature -20 to 55 °C
Operating Humidity 5-95%
Installation Location Wall-Mounted, Floor-Mounted, Rack-Mounted (19-inch)
Enclosure IP Rating IP20
Storage Temperature 0-35 °C
Cooling Type Natural Cooling
Working Temperature Charge: 0-55 (optional -20) / Discharge: -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

  • Nine-certificate dossier: UL1973, UL9540A, IEC62619, VDE2510-50, CEI 0-21, FCC, UK, CE and UN38.3 in one module.
  • All 5.12 kWh usable: Usable energy is listed at the full 5.12 kWh, with a recommended depth of discharge of 90%.
  • Doubled current budget: 100 A continuous charge and discharge - twice the standard SE-G5.1 - with a 150 A peak.
  • Optional cold charging: Standard charging runs 0-55 degrees Celsius, with an optional extension down to -20.
  • 125 A two-pole breaker: A built-in 125 A 2P 60 Vdc circuit breaker protects the DC connection.
  • 19-inch rack native: Fits standard 19-inch racks at 440 x 133 x 540 mm and 45 kg, or mounts on wall and floor.

Frequently Asked Questions

Which certifications does the SE-G5.1 Pro-B hold?

UL1973, UL9540A, IEC62619, VDE2510-50, CEI 0-21, FCC, UK, CE and UN38.3 - the list projects with formal safety documentation usually require.

Can the SE-G5.1 Pro-B charge in freezing weather?

Standard charging covers 0-55 degrees Celsius; Deye lists an optional -20 charging capability for this model, and discharge already spans -20 to 55.

What makes the Pro-B different from the standard SE-G5.1?

Twice the continuous current (100 A versus 50 A), usable energy listed at the full 5.12 kWh, a 10-year stated warranty instead of 5, a far longer certification list and a 125 A two-pole breaker.

How large can a bank of SE-G5.1 Pro-B units be?

Sixty-four in parallel - 32 without external equipment - for a stated maximum of 327 kWh.

What electrical window does the SE-G5.1 Pro-B operate over?

43.2-57.6 V around a 51.2 V nominal - the low-voltage inverter class - with humidity tolerance of 5-95%.