Deye SE-G5.1 Pro-B Specifications

Model Number	SE-G5.1 Pro-B
Battery Chemistry	LiFePO4
Nominal Capacity	100 Ah
Nominal Voltage	51.2 VDC
Operating Voltage Range	43.2 - 57.6 VDC
Nominal Energy	5.12 kWh
Usable Energy	4.6 kWh (90% DOD)
Max Continuous Current	100 A
Peak Current (2 mins)	150 A
Operating Temperature	-4°F to 131°F (-20°C to 55°C)
Cycle Life	6000+ cycles @ 90% DOD
Dimensions (W × H × D)	17.3" × 5.2" × 21.3" (440 × 133 × 540 mm)
Weight	99 lbs (45 kg)

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Deye SE-G5.1 Pro-B 5.12 kWh LFP Battery

Name: Deye SE-G5.1 Pro-B 5.12 kWh LFP Battery
SKU: DEYE-HOME-SE-G5.1-PRO-B

SKU DEYE-HOME-SE-G5.1-PRO-B

The Deye SE-G5.1 Pro-B is a modular lithium iron phosphate (LFP) battery system designed for safe, reliable energy storage in residential and commercial applications. With 5.12 kWh nominal capacity and 4.6 kWh usable energy, this 51.2V system delivers consistent power through its intelligent battery management system while supporting up to 64 units in parallel for maximum scalability up to 327 kWh total capacity.

Engineered for installation flexibility and long-term performance, the SE-G5.1 Pro-B features three mounting configurations (rack, wall, or floor), natural cooling operation, and wide temperature tolerance from -4°F to 131°F. The integrated BMS provides comprehensive cell monitoring and balancing, while the 19-inch standard design with auto-networking capabilities ensures seamless system expansion and remote monitoring through USB firmware upgrades.

DEYE SE-G5.1 Pro-B Features

Cobalt-Free LiFePO4 Chemistry: Lithium iron phosphate technology provides enhanced safety, long lifespan, high efficiency, and superior power density with intelligent BMS protection.
Modular Scalability: Easy expansion design supports up to 64 units in parallel for maximum 327kWh capacity with automatic battery networking and communication.
Flexible Installation Options: 19-inch standard design supports rack-mounted, wall-mounted, and floor-mounted configurations with included mounting accessories.
Intelligent Battery Management: Built-in BMS monitors and manages cell voltage, current, and temperature while providing cell balancing to extend cycle life and ensure optimal performance.
Environmental Protection: Uses eco-friendly materials with non-toxic, pollution-free construction and comprehensive safety certifications including UL1973 and UL9540A.

DEYE SE-G5.1 Pro-B Warranty & Lifecycle

The SE-G5.1 Pro-B offers exceptional long-term value with a comprehensive 10-year warranty and 6000+ cycle life rating at 90% depth of discharge, ensuring reliable performance throughout its operational lifespan. With 16 MWh energy throughput capacity at 70% end-of-life, this system delivers consistent energy storage performance for over a decade of daily cycling applications.

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Deye SE-G5.1 Pro-B Battery Review

The SE-G5.1 Pro-B delivers reliable energy storage with 5.12 kWh nominal capacity and 4.6 kWh usable energy at 90% depth of discharge. The 51.2V LiFePO4 system supports up to 100A continuous current with 150A peak capability for 2 minutes, providing sufficient power for residential backup and commercial applications. The intelligent BMS ensures optimal performance through comprehensive cell monitoring, voltage balancing, and temperature management.

Installation advantages include three mounting configurations with 19-inch rack compatibility, single-unit 99-pound weight for manageable handling, and modular expansion supporting up to 64 units in parallel. The natural cooling design operates reliably across wide temperature ranges without moving parts, while CAN2.0 and RS485 communication ports enable seamless integration with hybrid inverters and monitoring systems.

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