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Deye SE-G5.1 Pro‑B LFP Battery | 5.12kWh Expandable Storage
Deye SE-G5.1 Pro‑B LFP Battery | 5.12kWh Expandable Storage
Deye SE-G5.1 Pro‑B LFP Battery | 5.12kWh Expandable Storage
Deye SE-G5.1 Pro‑B LFP Battery | 5.12kWh Expandable Storage
Deye SE-G5.1 Pro‑B LFP Battery | 5.12kWh Expandable Storage
Deye SE-G5.1 Pro‑B LFP Battery | 5.12kWh Expandable Storage
Deye SE-G5.1 Pro‑B LFP Battery | 5.12kWh Expandable Storage
Deye SE-G5.1 Pro‑B LFP Battery | 5.12kWh Expandable Storage

Deye SE-G5.1 Pro‑B LFP Battery | 5.12kWh Expandable Storage

Price: $1,145.00 USD
List Price: $1,480.00 USD
Price: $1,145.00 USD
You save: $335.00 (23%)
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Deye SE-G5.1 Pro‑B LFP Battery | 5.12kWh Expandable Storage

The SE‑G5.1 Pro‑B from Deye’s Spring SE Series is a high-performance, safe, and scalable energy storage solution built for modern homes. Engineered to deliver reliable backup and load-shifting capabilities, this rack-capable module helps homeowners maximize self-consumption, reduce grid dependence, and secure resilient power when it matters most.

Key benefits

  • Safe, long-lasting chemistry: Uses cobalt‑free Lithium Iron Phosphate (LiFePO4) for superior thermal and chemical stability. A smart Battery Management System (BMS) constantly monitors voltage, current, and temperature to protect the battery and extend its life.
  • Compact, powerful performance: Nominal voltage 51.2 V and 100 Ah capacity yield 5.12 kWh nominal energy and 4.6 kWh usable energy — ideal for daily cycling or emergency backup.
  • Easily scalable: Parallel up to 64 units to reach a total system capacity of roughly 327 kWh, so you can expand as your energy needs grow.
  • Durable for varied environments: Operates from -20 °C to 55 °C and carries an IP20 rating for robust indoor performance.
  • Simple maintenance and monitoring: Auto‑networking plus real‑time remote monitoring enables fast diagnostics and proactive upkeep.
  • Eco-conscious design: Built from non‑toxic, environmentally responsible materials for greener home energy.
  • Flexible installation: Supports wall, floor, or rack mounting to suit different system layouts.

Deye SE‑G5.1 Pro‑B delivers a balanced combination of safety, performance, and flexibility for homeowners who want dependable solar energy storage. Its robust LiFePO4 chemistry, intelligent BMS, and straightforward scalability make it an excellent choice for maximizing self‑consumption, providing emergency backup, or building larger residential storage arrays.

Product Specifications

Deye SE-G5.1 Pro‑B LFP Battery | 5.12kWh Expandable Storage Product Specifications

Specification Details
Battery chemistry Lithium Iron Phosphate (LiFePO4)
Capacity 100 Ah
Nominal voltage 51.2 V
Nominal energy 5.12 kWh
Usable energy 4.6 kWh
Recommended charge/discharge current 50 A
Maximum continuous current 100 A
Peak current 150 A (2 min)
Cycle life >6000 cycles at 25°C (90% DoD)
Operating temperature -20°C to 55°C
Ingress protection IP20
Dimensions (W × H × D) 440 × 133 × 540 mm
Weight ~45 kg
Certifications UN38.3, IEC 62619, CE, UL1973

Product Manual

Deye SE-G5.1 Pro B User Manual

Deye SEG5.1 Pro B Series Brochure

Product Warranty

DEYE Energy Storage System Limited Warranty SE-G5.1Pro-B