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Home / Products / Brand / Deye / Energy Storage Batteries / Deye AI-W5.1-B Low Voltage Battery
  • Deye AI-W5.1-B Low Voltage Battery
  • Deye AI-W5.1-B Low Voltage Battery
Deye AI-W5.1-B Low Voltage Battery

Deye AI-W5.1-B Low Voltage Battery

The Deye AI-W5.1-B is a 5.12kWh modular LiFePO4 battery engineered for residential solar energy storage, hybrid inverter systems, home backup power, off-grid solar projects, and smart household ESS installations. With a 51.2V low-voltage architecture, IP65 enclosure, and stackable modular design, it is well suited to homeowners and installers seeking a safe, durable, and easy-to-expand lithium battery for solar applications.

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  • Deye AI-W5.1-B Low Voltage Battery
  • Deye AI-W5.1-B Low Voltage Battery
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More details

Official product information highlights non-toxic cobalt-free LFP chemistry, ≥6000 cycle life, wide operating temperature performance, and support for both indoor and outdoor installation. The AI-W5.1-B offers 5.12kWh per module and can be stacked up to 30.72kWh, making it a flexible choice for self-consumption, emergency backup, time-of-use optimization, and residential photovoltaic energy storage upgrades.

This battery is optimized for keywords such as 5.12kWh lithium battery, residential ESS battery, 51.2V LiFePO4 battery, home energy storage battery, low voltage solar battery, stackable battery module, hybrid inverter battery, backup power battery, modular LFP battery, and IP65 solar storage battery. Official page: https://deye.com/product/ai-w5-1-b/

Technical Specifications Feedback
Item Details
Battery chemistry LiFePO4
Capacity 100 Ah
Nominal voltage 51.2 V
Operating voltage 44.8–57.6 V
Nominal energy 5.12 kWh
Weight approx. 74.5 kg
Dimensions (W×H×D) 720 × 255 × 569 mm
Performance / protection ≥6000 cycles (70% EOL), IP65-rated, natural cooling
Scalability 5.12 kWh per module, stackable up to 30.72 kWh
Application indoor and outdoor installation
Warranty / certifications 10-year warranty; UN38.3, IEC62619, CE, VDE2510-50, UL1973, UL9540A and others listed by the manufacturer
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SEETEK is a one-stop international platform dedicated to supplying high-quality photovoltaic (PV) and energy storage products. Based in Europe, we integrate global energy technology resources to serve residential, commercial and industrial customers with reliable, transparent and project-ready solar generation and energy storage solutions. Reliable Deye AI-W5.1-B Low Voltage Battery Suppliers.
In terms of product selection, we only partner with brands that possess mature manufacturing capabilities, stable quality systems, and international certifications. In terms of service, we provide customers with continuous support covering pre‑sales, in‑sales, and after‑sales stages, ensuring every purchase is backed by clear technical justification and long‑term usability value.
As global electricity prices keep rising and the costs of solar and energy storage systems continue to fall, clean energy has become a rational choice for more households and businesses. Seetek is committed to helping customers make the right energy investment decisions at the right time through clear product information, transparent pricing structures, and professional support. Deye AI-W5.1-B Low Voltage Battery Distributors.
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