Advances in battery technology have made home battery storage systems a viable option for storing solar energy and providing backup power.

The DEYE AL-W5.1-B-ESS is an all-in-one lithium iron phosphate (LiFePO4) home battery storage system designed to provide home battery backup and storage capabilities.

As a complete integrated solution, it allows homeowners to store renewable energy from solar panels for use during power outages or times when energy demand is high. Utilizing LiFePO4 battery technology, it offers safe, reliable storage and backup power for residential applications.

SKU: AI-W5.1-B-ESS Category:


Many homeowners are investing in home battery storage systems to help reduce their energy costs and reliance on the main power grid. The DEYE AL-W5.1-B-ESS is an all-in-one lithium iron phosphate (LiFePO4) home battery storage system designed for home battery storage and backup power.

Key Features:

  • All-in-one integrated design with hybrid inverter and modular battery storage
  • Output power range from 3.6kW to 8kW
  • Modular battery from 5kWh to 30kWh capacity
  • Lithium iron phosphate (LFP) battery chemistry – safe and long-lasting
  • 6000+ cycles and 10 year warranty
  • Floor-mounted, stackable panels for flexible installation
  • App, PC, and touch display control options
  • Smart energy management for solar self-consumption
  • Peak shaving, scheduled charging, and other grid services
  • Backup power during outages

Advanced LFP Battery Technology

The AL-W5.1-B-ESS utilizes industry-leading lithium iron phosphate battery cells designed for performance, safety, and longevity. LFP chemistry is proven for long calendar and cycle life with no risk of thermal runaway. Modular battery packs scale from 5kWh up to 30kWh of usable capacity.

Integrated Hybrid Inverter

The system features a hybrid inverter that integrates battery and solar PV inputs into a single AC output. This advanced power conversion system supports both grid-tied and off-grid applications.

Intelligent Software and Controls

The AL-W5.1-B-ESS comes with intelligent energy management software that optimizes solar self-consumption, time-of-use shifting, peak shaving, and other smart grid services. Users can monitor and control the system in real-time through the smartphone app, PC software, or touch display.

Flexible and Reliable

With its all-in-one design, stackable floor panels, and wall mounting options, the AL-W5.1-B-ESS provides flexible installation. Quick connection plugs simplify wiring and maintenance. Advanced thermal management and a dust- and water-proof IP65 enclosure ensure reliable operation in any environment. The DEYE AL-W5.1-B-ESS provides a powerful integrated solar energy storage solution to maximize renewable energy usage and provide backup resilience. Contact a DEYE representative for pricing and availability.

Technical Data

Model AI-W5.1-3.6P1-EU-B AI-W5.1-5P1-EU-B AI-W5.1-6P1-EU-B AI-W5.1-7.6P1-EU-B AI-W5.1-8P1-EU-B
System Specification
Nominal Output Power/UPS Power (W) 3600/3600 5000 / 5000 6000 / 6000 7600/7600 8000 / 8000
AC Output Frequency and Voltage 50/60Hz; L/N/PE 220/230Vac
Grid Type Single Phase
Recommended Energy Configuration 5kWh(Min.) 10kWh(Min.)
Max. Charging/Discharging Current (A) 90 120 135 190 190
Battery Operating Voltage (V) 43.2 ~ 57.6
Battery Chemistry LiFePO4
IP Rating of Enclosure IP65 (after stacking)
System Certification IEC62619, IEC60730, CE, VDE2510-50, CEI 0-21
Warranty [1] Battery 10 years (Inverter 5 years)
Inverter Technical Specification
Max. PV Input Power (W) 4680 6500 7800 9880 10400
Rated PV Input Voltage (Vdc) 370 (125~500)
Start Up DC Voltage (Vdc) 125
MPPT Voltage Range (Vdc) 150-425
Full Load DC Voltage Range (V) 300~425 200~425
Max. PV Input Current (A) 13+13 26+26
Max. PV Short-circuit Current (A) 17+17 34+34
No. of MPP Trackers 2
Peak Power (off grid) 2 time of rated power, 10s
Power Factor 0.8 leading to 0.8 lagging
DC injection current (mA) THD<3% (Linear load<1.5%)
Display LCD
Relative Humidity 15% ~ 85% (No Condensing)
Dimension (W x D x H,mm) 720x255x330
Weight (kg) 34
Communication with BMS CAN2.0
Safety IEC/EN 62109-1,IEC/EN 62109-2,IEC/EN 61000-6-1,IEC/EN 61000-6-2,IEC/EN 61000-6-3,IEC/EN 61000-6-4
Grid Regulation VDE4105,IEC61727/62116,VDE0126,AS4777.2,CEI 0-21,EN50549-1,G98,G99,C10-11,UNE217002,NBR16149/NBR16150
Max. Efficiency 97.60%
Max. charging/discharging efficiency 95.50%
Battery Technical Specification
Nominal Voltage (V) 51.2
Battery Module Energy (kWh) 5.12
Module Scalability Max.36 pcs in parallel(Max. capacity of 184kWh)
Battery Module Dimension 720*255*300(W x D x H, mm)
Battery Base Dimension 720*255*68(W x D x H, mm)
Battery PDU3 Dimension 720*255*228(W x D x H, mm)
Battery Module Weight (kg) 53
Operating Temperature Range Charge: 0~55℃ / Discharge: -20℃~+55℃
Cycle Life ≥6000(25℃±2℃,0.5C/0.5C,90%DOD,70%EOL)
Battery Module Certification IEC62619, CE, UK, VDE2510-50, CEI 0-21, UN38.3, CE-LVD, CEC



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