Description
Deye SE-G5.1 Pro-B | 5.12kWh LiFePO4 Battery Module
The Deye SE-G5.1 Pro-B is a high-performance 51.2V Lithium Iron Phosphate (LFP) battery designed for residential and commercial energy storage. Engineered for reliability in Australian conditions, this cobalt-free module offers high thermal stability and seamless integration with Deye and other leading 48V hybrid inverters.
Key Performance Features
- High Discharge Capacity: Supports a 100A continuous discharge current, ideal for high-load solar applications.
- Superior Safety: Uses Cobalt-Free LiFePO4 chemistry with an integrated BMS providing over-voltage, over-current, and temperature protection.
- Massive Scalability: Supports up to 64 units in parallel (327kWh) without external hardware.
- Flexible Installation: Compatible with 19-inch racks, wall-mounting, or floor-stacking configurations.
- Smart Management: Features auto-networking for easy setup and supports remote monitoring/upgrades.
Technical Specifications
| Parameter | Value |
|---|---|
| Battery Chemistry | LiFePO4 (Lithium Iron Phosphate) |
| Nominal Energy | 5.12 kWh |
| Nominal Voltage | 51.2 V |
| Operating Voltage | 43.2 – 57.6 V |
| Recommend Charge/Discharge Current | 50 A (0.5C) |
| Max. Continuous Discharge Current | 100 A (1C) |
| Peak Discharge Current | 150 A (2 mins @ 25°C) |
| Depth of Discharge (DoD) | 90% |
Physical & Environmental Data
| Feature | Detail |
|---|---|
| Dimensions (W/H/D) | 440 x 133 x 540 mm (3U Height) |
| Weight (Approximate) | 45 kg |
| IP Rating | IP20 (Indoor Use) |
| Operating Temperature | Charge: 0 to 55°C | Discharge: -20 to 55°C |
| Cycle Life | ≥6000 cycles (@ 25°C, 0.5C/0.5C, 90% DoD) |
| Communication Ports | CAN2.0, RS485 |
| Warranty | 10 Years (Standard) |
| Certifications | IEC62619, CE, UN38.3, UL1973 |
The warranty is valid for either 10 years or until the battery reaches 16 MWh of total energy throughput, whichever comes first. This throughput is measured at the point where the battery retains 70% of its original capacity (End of Life/EOL).
To put that into perspective for a single 5.12kWh module:
16 MWh = 16,000 kWh.
If you cycle the battery fully once per day (~4.6kWh usable), you would reach the 16 MWh limit in approximately 3,478 days (about 9.5 years).
If you are a light user and don’t fully cycle it daily, the 10-year time limit will likely trigger first.
