Deye ESS Battery Enclosure (SE-G5.1PRO-B Batteries) SE-G5.1PRO-B-EN

The Deye SE-G5.1PRO-B-EN is a 51.2 V rack/wall battery built on safe, long-life LFP chemistry with an intelligent BMS. Each module provides 5.12 kWh usable energy and can scale up to 64 units in parallel (327 kWh max). With a built-in 125 A DC breaker, CAN/RS485 communications, and optional cold-weather heating, it integrates cleanly into residential or light-commercial ESS.

Key Benefits

Safe & Long-Life LFP: Cobalt-free LiFePO₄ cells with ≥6,000 cycles to 70% EOL at 90% DoD.

Scalable Storage: Parallel up to 64 packs (327 kWh); up to 32 without external setup.

Built-In Protection: 125 A 2-pole / 60 Vdc breaker, BMS protections, and status LEDs.

Cold-Climate Ready: Optional heating enables charging down to −20 °C.

Special Technology

Intelligent BMS: Manages cell balancing, protections, and communicates via CAN2.0/RS485.

Modular Form Factor: Wall, floor, or 19″ rack mount (cabinet depth ≥ 600 mm). Auto-networking simplifies multi-battery setup.

Warranty

10-Year Manufacturer Warranty; 16 MWh throughput at 70% EOL (conditions apply).

Best Uses

Residential ESS: Self-consumption, TOU shifting, and backup when paired with compatible hybrid inverters.

Light Commercial: Modular parallel stacks for higher capacity needs.

Specifications Table

Specification	Data
Model	SE-G5.1PRO-B-EN (SE-G5.1 Pro-B)
Chemistry	LiFePO₄ (LFP)
Nominal Voltage	51.2 Vdc
Operating Voltage	43.2 – 57.6 Vdc
Capacity	100 Ah
Energy / Usable Energy	5.12 kWh / 5.12 kWh*
Recommended DoD	90%
Charge/Discharge Current	Recommended 50 A · Max 100 A · Peak 150 A (2 min @ 25 °C)
Built-in Breaker	125 A, 2-pole, 60 Vdc
Scalability	Up to 64 packs in parallel (max 327 kWh); up to 32 without external setup
Communications	CAN2.0, RS485
Mounting	Wall-mounted / Floor-mounted / 19″ rack (cabinet depth ≥ 600 mm)
Enclosure Rating	IP20
Cycle Life	≥ 6,000 cycles (25 °C, 0.5C/0.5C, 90% DoD, 70% EOL)
Operating Temperature	Charge 0–55 °C (optional heating −20–55 °C); Discharge −20–55 °C
Storage Temperature	0–35 °C
Humidity / Altitude	5–95% RH / ≤ 2000 m
Indicators	5× SOC LEDs (20–100%), 3× status LEDs (work/alarm/protect)
Dimensions (W × H × D)	17.32 × 5.24 × 21.26 in
Weight	99.21 lb
Certifications	UN38.3, IEC 62619, CE, VDE 2510-50, CEI 0-21, FCC, UL1973, UL9540A
Warranty / Throughput	10 Years / 16 MWh @ 70% EOL
Notes	*Usable energy measured DC at 100% DoD, 0.5C, 25 °C; system-level usable energy varies with configuration.

About Deye:

Deye Battery provides advanced energy storage solutions designed for residential, commercial, and industrial use. Known for safety, high efficiency, and long cycle life, Deye batteries integrate seamlessly with Deye inverters to deliver reliable backup power and optimize solar energy use in modern renewable systems.

Why Buy From US Solar Supplier?

As an American founded company out of Kentucky, US Solar Supplier is committed to providing top-quality solar products, backed by the world’s leading manufacturers. Our promise is to get you the fairest price from the best brands that offer warranties you can count on. We are updating our inventory daily with solar components that offer the latest technology. With a reputation for excellence and a dedication to customer satisfaction, we ensure that every product we sell meets the highest standards in the industry.

Need Assistance?
We’re here to help! If you have any questions or need more information before making your purchase, don’t hesitate to call us at 1-800-230-7004. Our knowledgeable and friendly team is ready to assist you with product details, installation advice, or the purchasing process.

Why Buy From Us?
Trusted Supplier: We work with Tier 1 manufacturers who stand behind their products.

Expert Support: Our team is here to guide you every step of the way.

Manufacturer-Backed Warranties: Enjoy peace of mind with the 10-year product warranty directly from the manufacturer.

Easy and Secure Checkout: Your information is protected with top-notch security for a smooth, worry-free transaction.

Join the many satisfied customers who have trusted us for their solar needs. Add to your cart now to secure your high-efficiency solar panels and take the next step towards sustainable energy!

Accessories

Type

Subcategory

Filters

Filter

1 of 157 products

1 of 157 products

Deye ESS Battery Enclosure (SE-G5.1PRO-B Batteries) SE-G5.1PRO-B-EN

Deye ESS Battery Enclosure (SE-G5.1PRO-B Batteries) SE-G5.1PRO-B-EN

Deye ESS Battery Enclosure (SE-G5.1PRO-B Batteries) SE-G5.1PRO-B-EN

Subscribe for exclusive solar promotions

Success! You'll Now Receive Exclusive Solar Deals.

Latest articles

Customer Support

US Solar Supplier Community

Others