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.
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 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
- 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.