Deye

Deye AI-W5.1-B

A 5.12 kWh low-voltage LiFePO4 battery in a sealed IP65 floor cabinet, expandable module by module to 184 kWh across 36 parallel units.

Models Covered: DEYE-AI-W5.1-B

Manufacturer: Ningbo Deye Inverter Technology Co., Ltd

Application: Run your essential loads through the night on a battery that lives happily outdoors. The Deye AI-W5.1-B stores 5.12 kWh, 4.6 kWh of it usable at the recommended 90% depth of discharge, behind an IP65-sealed floor-standing cabinet, so it installs beside the house as readily as inside the garage. Its 51.2 V architecture pairs with low-voltage hybrid inverters, and growth stays simple: connect up to 36 units in parallel for as much as 184 kWh, while the AI-W range itself spans configurations from AI-W5.1-B to AI-W30.7-B. LiFePO4 cells rated for more than 6,000 cycles keep 70% of their capacity at end of life, and a built-in heating function lets the pack accept charge at temperatures down to -20 degrees C. CAN2.0 and RS485 ports handle inverter communication, a 125 A breaker is built in, and the manufacturer covers the unit for 10 years.

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Technical Specifications

Parameter DEYE-AI-W5.1-B
Battery Data
Energy 5.12 kWh
Usable Energy 4.6 kWh
Module Energy 5.12 kWh
System Energy 5.12 kWh
Max. Capacity 184 kWh
Nominal Voltage 51.2 V
Module Nominal Voltage 51.2 V
System Nominal Voltage 51.2 V
Operating Voltage 44.8-57.6 V
Rated Capacity 100 Ah
Module Capacity 100 Ah
Cell Chemistry LiFePO4
Cycle Life >6000
End-of-Life Capacity 70%
Energy Throughput 16 MWh
Recommended Depth of Discharge 90%
Rated DC Power 2.5 kW
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
Battery Module Models AI-W5.1-B, AI-W10.2-B, AI-W15.3-B, AI-W20.4-B, AI-W25.6-B, AI-W30.7-B
Parallel Units 36
Built-in Circuit Breaker 125A 2P, 60Vdc
Protection Features BMS Protection
Warranty (Years) 10
Mechanical & Interface
Communication Ports CAN2.0, RS485
Dimensions 720 x 569 x 255 mm
Additional Notes Standard charge: 25±2°C constant current 50A to 57.6V
Module Dimensions 720±3 x 300±1.5 x 254±1.5 mm
Module Weight 53 kg
Status Indicator Battery module: 3LED (working, alarming, protecting); PDU module: 5LED (SOC 20%-100%), 3LED (working, alarming, protecting)
Weight 74.5 kg
Environment & Protection
Altitude <3000 m
Charge Temperature 0-55 (-20 to 55 when heating on) °C
Discharge Temperature -20 to 55 °C
Operating Humidity 5-95 (non-condensing)%
Installation Location Floor-Mounted
Enclosure IP Rating IP65
Storage Temperature 0-35 °C
Cooling Type Natural Cooling
Working Temperature Charge: 0-55 (-20 to 55 when heating on) / 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 Sudan

Market Sudan
Grid authority / regulator Sudanese Electricity Distribution Company (SEDC), Ministry of Energy and Petroleum
Quotation currency SDG
Support hours timezone Africa/Khartoum
Delivery & installation coverage Khartoum, Omdurman, Port Sudan, Kassala, Nyala

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 Sudan that is Sudanese Electricity Distribution Company (SEDC), Ministry of Energy and Petroleum. Confirm the grid code, import requirements and any local certification with them, or with us, before you order.

Key Features & Technical Highlights

  • Decade-spanning cycle life: LiFePO4 chemistry rated for more than 6,000 cycles while keeping 70% of capacity at end of life.
  • 4.6 kWh ready every night: Each unit yields 4.6 kWh of usable energy at the recommended 90% depth of discharge.
  • Sealed for the outdoors: The IP65 floor-standing cabinet shrugs off dust and water, beside the house or in the garage.
  • Charging through the winter: A built-in heating function lets the pack accept charge at temperatures down to -20 degrees C.
  • Room to grow to 184 kWh: Parallel up to 36 units, with CAN2.0 and RS485 keeping every one in step with the inverter.
  • 16 MWh design throughput: Rated for 16 MWh of energy throughput and covered by a 10-year warranty.

Frequently Asked Questions

Which inverters can the AI-W5.1-B work with?

It is a 51.2 V low-voltage battery with a 44.8-57.6 V operating window, so it pairs with low-voltage hybrid inverters that communicate over CAN2.0 or RS485.

How far can I expand an AI-W5.1-B system?

Up to 36 units can run in parallel, taking total capacity to 184 kWh; the AI-W line spans configurations from AI-W5.1-B up to AI-W30.7-B.

Can the AI-W5.1-B be installed outside?

Yes. The cabinet is rated IP65 and designed for floor mounting, with discharge supported from -20 to 55 degrees C and operation at altitudes up to 3,000 m.

What happens to this battery in cold weather?

Charging normally starts at 0 degrees C, but with the heating function active the pack accepts charge from -20 degrees C, so winter mornings do not lock it out.

How long should the AI-W5.1-B last?

The LiFePO4 cells are rated beyond 6,000 cycles with 70% capacity remaining, design energy throughput is 16 MWh, and the warranty runs for 10 years.