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Deye SE-G5.1 Pro-B 5.12kWh LiFePO4 LV Rack Battery – 51.2V 100Ah
Deye SE-G5.1 Pro-B 5.12kWh LiFePO4 LV Rack Battery – 51.2V 100Ah
The Deye SE-G5.1 Pro-B is a premium 5.12kWh Lithium Iron Phosphate (LiFePO4) battery designed for residential and commercial energy storage applications. Featuring advanced battery management, exceptional cycle life, and flexible installation options, the SE-G5.1 Pro-B is the ideal solution for off-grid, hybrid, and backup power systems.
Built using cobalt-free LiFePO4 cells, the SE-G5.1 Pro-B delivers outstanding safety, reliability, and long-term performance. With support for up to 64 batteries in parallel, the system can be expanded to provide up to 327kWh of storage capacity, making it suitable for everything from small residential installations to large-scale commercial energy storage projects.
⚡ Key Features
- 5.12kWh Usable Storage: Provides reliable energy storage for solar self-consumption, backup power, and off-grid applications.
- Premium LiFePO4 Technology: Cobalt-free lithium iron phosphate chemistry offers enhanced safety, thermal stability, and long service life.
- Expandable System: Connect up to 64 batteries in parallel for a total storage capacity of up to 327kWh.
- Long Cycle Life: Rated for 6,000+ cycles at 90% depth of discharge, ensuring years of dependable operation.
- Integrated Smart BMS: Advanced Battery Management System continuously monitors voltage, current, temperature, and cell balancing for maximum protection and performance.
- High Power Output: Supports up to 100A continuous charge/discharge and 150A peak discharge.
- Flexible Installation: Suitable for rack-mounted, wall-mounted, or floor-mounted installations. Compatible with standard 19-inch battery cabinets.
- Remote Monitoring & Upgrades: CAN and RS485 communications support integration with compatible hybrid inverters and remote monitoring platforms. Firmware can be upgraded via USB.
- 10-Year Warranty: Backed by Deye's comprehensive manufacturer warranty for long-term peace of mind.
🔋 Ideal Applications
- Residential Solar Storage Systems
- Off-Grid Power Systems
- Hybrid Solar Installations
- Backup Power & UPS Systems
- Commercial Energy Storage
- Remote Power Applications
✅ Technical Specifications
| Specification | Value |
|---|---|
| Model | SE-G5.1 Pro-B |
| Battery Chemistry | LiFePO4 (Lithium Iron Phosphate) |
| Nominal Voltage | 51.2V |
| Capacity | 100Ah |
| Nominal Energy | 5.12kWh |
| Usable Energy | 4.6kWh |
| Operating Voltage Range | 43.2V – 57.6V |
| Recommended Charge/Discharge Current | 50A |
| Maximum Charge/Discharge Current | 100A |
| Peak Current (2 Minutes) | 150A |
| Recommended Depth of Discharge | 90% |
| Cycle Life | ≥ 6,000 Cycles |
| Dimensions (W × H × D) | 440 × 133 × 540 mm |
| Weight | 45 kg |
| Communication | CAN 2.0 / RS485 |
| Installation Options | Rack, Wall or Floor Mounted |
| Operating Temperature | Charge: 0°C to 55°C Discharge: -20°C to 55°C |
| Protection Rating | IP20 |
| Scalability | Up to 64 Batteries (327kWh) |
| Warranty | 10 Years |
Reliable, scalable, and built for the future, the Deye SE-G5.1 Pro-B is an ideal energy storage solution for homeowners and businesses looking to maximise solar self-consumption, reduce grid reliance, and ensure uninterrupted power when it matters most.
Document
Video
Battery
- Chemistry
- LiFePO4 (Lithium Iron Phosphate)
- System Voltage
- 51.2V
Physical
- Weight
- 45kg
- Dimensions
- 440 × 133 × 540 mmmm
Installation & Warranty
- Warranty
- 10 Years
- Installation Type
- Rack Mounted / Wall Mounted / Floor Mounted
We have a 30-day return policy if the item is damaged or is not as described, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at sales@lifepo4oz.com. If your return is accepted, we’ll provide instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at sales@lifepo4oz.com.
If you change your mind, you may be eligible for a return, however the items must be unused and in their original packaging. Once returned to us, we will inspect the goods and, if approved, a 20% restocking fee will apply.
Damages and issues
If you receive any items which appear to be damaged, do not attempt to use them. Please inspect your order upon receipt and contact us immediately if the item is defective, damaged, or if you receive the wrong item, so that we can evaluate the issue and make it right.
Products damaged in transit
If you receive a shipment that has been damaged in transit, a replacement or refund may be provided, subject to the following conditions:
- The return or damage claim must be made within 24 hours of receiving the shipment.
- All shipments must be inspected for damage during the unloading process.
- Clear photos of the damaged packaging and damaged product must be provided as evidence.
- Photos must be taken during the unloading process.
- Photos must clearly show all damage and, where possible, the likely cause of the damage.
- The total approved claim value, including freight costs, will be credited to your account.
Exceptions / non-returnable items
We do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. A 20% restocking fee will apply.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded to your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund.
All orders will be safely packed and shipped within 1 day. All products are shipped via Road Freight only.
All efforts are made to ensure the products safe during transport, however if you receive an item which looks like it may have been damaged during tranport you must take a photo before trying to use the product.
Shipping
All orders are shipped via Road Freight. As such there is not Express Shipping available.
RETURNS
We aim to keep our customers happy and if you are unhappy with your items due to them being damaged or not as described, simply return them for a refund. A 20% restocking fee will apply.
Top Quality Goods
Our aim is to provide high-quality products at an affordable price. If you receive a product that is damaged, do not use the item. Please inform us within 24 hours of receiving that product. We will replace the product as soon as possible without any charges.
REFUNDS
A refund will be provided if you have purchased an item that does not operate as described. Once we have verified you claims we will offer a refund and pay for the return freight cost.
