Deye SE-G5.1 Pro-B Low Voltage LiFePO4 Battery – Solar Storage
- Safer
- Cobalt Free Lithium Iron Phosphate (LFP) Battery: Safety and long Lifespan, high efficiency and high power density. Intelligent BMS, providing complete protection. Reliable
- Support high discharge power. IP20, natural cooling, wide temperature range: -20℃ to 55℃. Flexible
- Modular design, easy to expand, Max. 64 units in parallel, Max. capacity of 327kWh. Suited to residential and commercial applications for increasing the self-consumption ratio. Convenient
- Battery module auto networking, easy maintenance, support remotely monitoring and upgrade, support USB drive upgrade the firmware.
- Eco-Friendly
- Use environmental protection materials, the whole module non-toxic, pollution-free.
- Three Mounting Methods
- 19inch Standard design, support rack-mounted, wall-mounted, and floor-mounted, saving installation space.
Specs:
- Model: Deye SE-G5.1
- Battery Chemistry: LiFePO4
- Nominal Capacity: 100 Ah
- Nominal Voltage: 51.2 V
- Operating Voltage: 44.8 V to 57.6 V
- Nominal Energy: 5.12 kWh
- Scalability: Maximum of 64 units in parallel (327 kWh total)
- Charge Current: Max 50 A (Continuous), 100 A (Peak for 10 seconds)
- Discharge Current: Max 50 A (Continuous), 100 A (Peak for 10 seconds)
- Depth of Discharge (DoD): Recommended 80% Dimension: 440 mm x 540 mm x 133 mm (W x D x H)
- Weight: Approx. 44 kg
- Communication Port: CAN2.0, RS485
- IP Rating: IP20
- Operating Temperature: Charge: 0 to 55℃; – Discharge: -20 to 55℃
- Storage Temperature: 0 to 35℃
- Relative Humidity: 95%
- Cycle Life: ≥6000 cycles

Deye SE-G5.1 Pro-B Low Voltage LiFePO4 Battery – Reliable Solar Storage
Enhance your solar system with the Deye SE-G5.1 Pro-B Low Voltage LiFePO4 Battery, a high-performance 5.12 kWh energy storage solution for residential and small commercial applications. Designed for seamless integration with low-voltage inverters like the Deye SUN-12K-SG04LP3-EU, the SE-G5.1 offers modular scalability (up to 327 kWh), intelligent BMS, and eco-friendly design. With a 10-year warranty and WiFi-enabled monitoring, it ensures safe, efficient power management—backed by Deye’s cutting-edge technology.
Why Choose the Deye SE-G5.1 Pro-B Battery?
- Safe LiFePO4 Chemistry: Cobalt-free LiFePO4 provides thermal stability, low self-discharge, and ≥6000 cycles at 90% DOD (25°C), certified by UN38.3, IEC62619, CE, and UL1973.
- High Performance: 5.12 kWh nominal capacity (100Ah, 51.2V), 4.6 kWh usable, with 50A continuous and 100A peak discharge (10s), ideal for backup and peak shaving.
- Scalable & Flexible: Modular design supports up to 64 units in parallel (327 kWh), with rack, wall, or floor mounting to fit any space.
- Intelligent BMS: Monitors voltage, current, and temperature, offering over-charge, over-discharge, and short-circuit protection, with auto-balancing for longevity.
- Smart Features: Auto-networking, WiFi/USB firmware upgrades, and remote monitoring via the Deye Cloud app simplify maintenance.
Easy Installation, Durable Design
The SE-G5.1 Pro-B measures 440 x 540 x 133 mm (3U rack), weighs ~44 kg, and features an IP20 rating for indoor use. Install by certified technicians using a 19-inch rack, wall, or floor mount, connecting via CAN/RS485 to inverters. Operates from -20°C to +55°C (charge: 0–55°C) with natural cooling.
Key Specs
- Capacity: 5.12 kWh; 100Ah; 51.2V
- Usable Capacity: 4.6 kWh (90% DOD)
- Voltage Range: 44.8–57.6V
- Cycle Life: ≥6000 cycles @ 90% DOD, 25°C
- Charge/Discharge Current: 50A (continuous); 100A (peak, 10s)
- Dimensions: 440 x 540 x 133 mm
- Weight: ~44 kg
- Features: LiFePO4, Intelligent BMS, Modular Design, WiFi/USB Upgrades, IP20, CAN/RS485
- Warranty: 10 Years
- Operating Temperature: Charge: 0–55°C; Discharge: -20–55°C
Sustainable Power Solution
The Deye SE-G5.1 Pro-B Low Voltage LiFePO4 Battery delivers safe, scalable, and efficient energy storage for solar systems. Buy now and optimize your energy independence with Deye’s trusted technology!
Deye BOS-G High Voltage LiFePO4 Battery – Scalable Solar Storage
| Weight | 44 kg |
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