DEYE AI-W5.1-B LFP Battery

Deye Battery Datasheet — 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.

SKU: DEYE-AI-W5.1-B | Last Updated: 2026-01-24

⚡Electrical Specifications

Energy5.12 kWh
Usable Energy4.6 kWh
Module Energy5.12 kWh
System Energy5.12 kWh
Max. Capacity184 kWh
Nominal Voltage51.2 V
Module Nominal Voltage51.2 V
System Nominal Voltage51.2 V
Operating Voltage44.8-57.6 V
Rated Capacity100 Ah
Module Capacity100 Ah
Cell ChemistryLiFePO4
Cycle Life>6000
End-of-Life Capacity70 %
Energy Throughput16 MWh
Recommended Depth of Discharge90 %
Rated DC Power2.5 kW
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
Battery Module ModelsAI-W5.1-B, AI-W10.2-B, AI-W15.3-B, AI-W20.4-B, AI-W25.6-B, AI-W30.7-B
Parallel Units36
Built-in Circuit Breaker125A 2P, 60Vdc
Protection FeaturesBMS Protection
Warranty (Years)10

🔧Mechanical Specifications

Communication PortsCAN2.0, RS485
Dimensions720 x 569 x 255 mm
Additional NotesStandard charge: 25±2°C constant current 50A to 57.6V
Module Dimensions720±3 x 300±1.5 x 254±1.5 mm
Module Weight53 kg
Status IndicatorBattery module: 3LED (working, alarming, protecting); PDU module: 5LED (SOC 20%-100%), 3LED (working, alarming, protecting)
Weight74.5 kg

🌡️Environmental Specifications

Altitude<3000 m
Charge Temperature0-55 (-20 to 55 when heating on) °C
Discharge Temperature-20 to 55 °C
Operating Humidity5-95 (non-condensing) %
Installation LocationFloor-Mounted
Enclosure IP RatingIP65
Storage Temperature0-35 °C
Cooling TypeNatural Cooling
Working TemperatureCharge: 0-55 (-20 to 55 when heating on) / Discharge: -20 to 55 °C

✅Certifications

UN38.3CECE-LVDUKFCCCECCEI 0-21IEC62619VDE2510-50UL1973UL9540A