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DEYE SE-G5.1 Pro-B Premium Battery

Deye 5.12 kWh 51.2 V Lithium Solar Battery SE-G5.1-PRO-B

The Deye SE-G5.1 Pro-B is a 5.12 kWh LiFePO4 rack battery at 51.2 V nominal and 100 Ah, with all 5.12 kWh listed as usable and a maximum charge and discharge current of 100 A. It weighs 45 kg, is rated IP20 and carries a 10-year warranty.

Authorised Deye distributor for the Middle East — certificate No. GFKFLFI1.

  • Energy: 5.12 kWh
  • Usable Energy: 5.12 kWh
  • Nominal Voltage: 51.2 V
  • Cycle Life: >6000
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Deye 5.12 kWh 51.2 V Lithium Solar Battery SE-G5.1-PRO-B features

5.12 kWh of LiFePO4 storage with the full 5.12 kWh listed as usable, at a recommended 90% depth of discharge.

100 A maximum charge and 100 A maximum discharge, a 150 A discharge peak, and 50 A recommended for continuous duty.

51.2 V nominal, 100 Ah rated, working across a 43.2-57.6 V window with a built-in 125 A 2P 60 Vdc breaker.

Charges from 0 to 55 °C, with an option extending charging to -20 °C, and discharges from -20 to 55 °C.

Nine certifications: UN38.3, CE, UK, FCC, CEI 0-21, IEC62619, VDE2510-50, UL1973 and UL9540A.

440 x 133 x 540 mm and 45 kg, IP20 and naturally cooled; 64 units in parallel reach a stated 327 kWh.

About the Deye 5.12 kWh 51.2 V Lithium Solar Battery SE-G5.1-PRO-B

The Deye SE-G5.1 Pro-B is a 5.12 kWh LiFePO4 rack battery module rated 51.2 V nominal and 100 Ah, with the whole 5.12 kWh listed as usable, a maximum charge and discharge current of 100 A, and a 10-year warranty. It carries nine certifications, including UL1973, UL9540A, IEC62619 and VDE2510-50. Deye specifies 50 A as the recommended continuous charge and discharge current, a 150 A discharge peak, and a built-in 125 A 2P 60 Vdc breaker on the DC terminals. The naturally cooled, fanless chassis measures 440 x 133 x 540 mm, weighs 45 kg, is rated IP20 and mounts in a 19-inch rack, on a wall or on the floor. Cells are rated beyond 6,000 cycles and 16 MWh of throughput to a 70% end-of-life capacity. The module works between 43.2 and 57.6 V, charges from 0 to 55 °C with an option extending charging to -20 °C, discharges from -20 to 55 °C, and tolerates 5-95% humidity below 2,000 m. One module suffices, and up to 64 run in parallel — 32 without external hardware — for a stated 327 kWh, over CAN2.0 and RS485. We supply the SE-G5.1 Pro-B as an authorised Deye distributor.

Specifications last updated 24 January 2026

Deye 5.12 kWh 51.2 V Lithium Solar Battery SE-G5.1-PRO-B is best for

  • Projects with strict certification requirements (UL9540A, IEC62619)
  • 19-inch rack rooms in telecom and industry
  • Cold-climate sites using the optional -20 degrees Celsius charging
  • Hybrid systems on the 51.2 V low-voltage bus

Deye 5.12 kWh 51.2 V Lithium Solar Battery SE-G5.1-PRO-B is not for

  • High-voltage battery inverter equipment
  • Unprotected outdoor placement (IP20)
  • Sites above 2,000 m
  • Environments outside 5-95% humidity

Deye 5.12 kWh 51.2 V Lithium Solar Battery SE-G5.1-PRO-B full specifications

Electrical

Energy5.12 kWh
Usable Energy5.12 kWh
Max. Capacity327 kWh
Nominal Voltage51.2 V
Operating Voltage43.2-57.6 V
Rated Capacity100 Ah
Cell ChemistryLiFePO4
Cycle Life>6000
End-of-Life Capacity70 %
Energy Throughput16 MWh
Recommended Depth of Discharge90 %
Max. Charge Current100 A
Max. Discharge Current100 A
Max. Charge/Discharge Current100 A
Recommended Charge/Discharge Current50 A
Peak Discharge Current150 A
Min. Battery Module Quantity1
Parallel Units64 (32 without external)
Built-in Circuit Breaker125A 2P, 60Vdc
Warranty (Years)10

Mechanical

Communication PortsCAN2.0, RS485
Dimensions440 x 133 x 540 mm
Status Indicator5LED (SOC 20%-100%), 3LED (working, alarming, protecting)
Weight45 kg

Environmental

Altitude<2000 m
Charge Temperature0-55 (optional -20) °C
Discharge Temperature-20 to 55 °C
Operating Humidity5-95 %
Installation LocationWall-Mounted, Floor-Mounted, Rack-Mounted (19-inch)
Enclosure IP RatingIP20
Storage Temperature0-35 °C
Cooling TypeNatural Cooling
Working TemperatureCharge: 0-55 (optional -20) / Discharge: -20 to 55 °C

Certifications

  • UN38.3
  • CE
  • UK
  • FCC
  • CEI 0-21
  • IEC62619
  • VDE2510-50
  • UL1973
  • UL9540A

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