Deye SE-G5.1  & SE-G5.3 Lithium Iron Phosphate (LiFePO4) Batteries
Advanced Energy Storage for Residential and Commercial Applications

Uncompromising Performance & Reliability
The Deye SE-G5.1 Pro (5.12 kWh) and SE-G5.3 (5.32 kWh) represent the next generation of LiFePO4 energy storage solutions, combining industry-leading safety, longevity, and adaptability. Designed for seamless integration into solar and hybrid power systems, these batteries deliver high energy density, rapid charge/discharge cycles, and scalable capacity—perfect for maximizing self-consumption and reducing grid dependence.

Key Specifications
Parameter SE-G5.1 Pro SE-G5.3
Nominal Capacity 100Ah (51.2V) 104Ah (51.2V)
Usable Energy 5.12 kWh 5.32 kWh
Depth of Discharge 90% (Recommended) 90% (Recommended)
Cycle Life 6,000+ cycles at 90% DoD 6,000+ cycles at 90% DoD
Warranty 10 years 5 years
Scalability Up to 64 units in parallel (655+ kWh total)
Voltage & Current:

Operating Range: 43.2V–54.6V

Continuous Current: 50A (100A peak for 10s)

Design & Durability:

IP Rating: IP65 (Dustproof and water-resistant)

Temperature Range:

Charging: 0°C to 55°C (with optional heating)

Discharging: -20°C to 55°C

Dimensions: 440×133×560mm (SE-G5.1 Pro) / 440×133×580mm (SE-G5.3)

Weight: 45kg (SE-G5.1 Pro) / 44kg (SE-G5.3)

Why Choose Deye SE-G5 Series?

✅ Safety First:

LiFePO4 chemistry with built-in Intelligent BMS for overcharge/over-discharge protection.

Certifications: UN 38.3, CE, IEC 62619 compliant.

✅ High Efficiency:

90% Depth of Discharge (DoD) with minimal degradation.

Supports 0.5C continuous charge/discharge for demanding applications.

✅ Flexible Installation:

Rack-mounted, wall-mounted, or floor-standing configurations.

Plug-and-play parallel connection (up to 64 units) with mixed SOC support.

✅ Smart Monitoring:

CAN 2.0 & RS485 communication for real-time data tracking.

Remote firmware updates via USB or network.

✅ Eco-Friendly:

Zero emissions, recyclable materials, and RoHS-compliant design.

Applications
Residential solar storage

Commercial backup power

Off-grid and hybrid systems

Microgrids and energy arbitrage