Deye 5.12 kWh Low-Voltage LiFePO4 Home Battery (SE-G5.1 Pro-B)
5.12 kWh rack battery, 133 mm thin, for a 19-inch cabinet
The SE-G5.1 Pro-B is a 51.2 V lithium battery for homes and small commercial sites, sized at 5.12 kWh per pack. It is 133 mm thin and takes a 19-inch rack, a wall bracket or the floor, and up to 64 packs can be wired together for 327 kWh. LiFePO4 cells and a 6000-cycle rating put it in the long-life bracket rather than the cheap one.
At 133 mm high and 45 kg, this pack slides into a 19-inch rack, hangs on a wall or stands on the floor, which fits installations a bulky floor cabinet would not. The enclosure is rated IP20, meaning indoors only: a garage, a plant room or a rack, never an outside wall. Working voltage runs 43.2 V to 57.6 V, and it will discharge down to -20 C.
At a glance
| Weight | 45 kg |
| Height | 133 mm |
| Built-in breaker | 125 A 2P, 60 Vdc |
| Operating voltage | 43.2 to 57.6 V |
Full specifications
| Energy Capacity (kWh) | 5.12 |
| Max System Capacity (kWh) | 327 |
| Battery Type | LiFePO₄ |
| Recommended Charge Discharge Current (A) | 50 |
| Max Charge Discharge Current (A) | 100 |
| Communication Interface | CAN2.0, RS485 |
| Peak Current (A) | 150 |
| Max Current (A) | 100 |
| Nominal Capacity (Ah) | 100 |
| Nominal Voltage (V) | 51.2 |
| Operating Voltage Range (V) | 43.2~57.6 |
| Recommended DOD (%) | 90 |
| Scalability (kWh) | 32 |
| Usable Energy (kWh) | 4.61 |
| Circuit Breaker | 125A 2P, 60Vdc |
| Parallel Units | 64 |
| IP Rating | IP20 |
| Installation | Wall/Floor/Rack (19-inch) |
| Cooling | Natural Cooling |
| Max Altitude (m) | 2000 |
| Relative Humidity (%) | 5%~95% |
| Storage Temperature Range (°C) | 0℃~35℃ |
| Charging Temperature Range (°C) | 0 to 55 (optional -20) |
| Discharging Temperature Range (°C) | -20 to 55 |
| Weight (kg) | 45 |
| Dimensions (mm) | 440 x 133 x 540 |
Model code: SE-G5.1-PRO-B