Deye Deye
Batteries
Deye SE-G5.1 Pro-B
5.12 kWh low-voltage rack-mounted LFP battery
A compact 51.2 V LiFePO4 battery module with an intelligent BMS, CAN/RS485 communication and flexible wall, floor or 19-inch rack installation.
List price€650
SKUESS-DEYE-SE-G5.1PRO-B
Price list dated August 2026 · Solar Kit Deye B2B distributor price list
Nominal energy5.12 kWh
Nominal voltage51.2 V
Battery chemistryLiFePO4
Capacity100 Ah
Cycle life≥6000 cycles
ScalabilityUp to 64 modules / 327 kWh
Deye
Technical specifications
Key factory specifications from the manufacturer’s brochure.
Electrical performance
| Battery chemistry | LiFePO4 |
|---|---|
| Capacity | 100 Ah |
| Nominal voltage | 51.2 V |
| Operating voltage | 43.2-57.6 V |
| Nominal energy | 5.12 kWh |
| Usable energy | 5.12 kWh DC under datasheet test conditions |
| Recommended current | 50 A |
| Maximum current | 100 A |
| Peak current | 150 A for 2 minutes at 25°C |
Installation and scalability
| Parallel expansion | Up to 64 modules; up to 32 without external setup |
|---|---|
| Maximum system energy | 327 kWh |
| Installation | Wall-mounted, floor-mounted or 19-inch rack-mounted |
| Dimensions (W × H × D) | 440 × 133 × 540 mm |
| Weight | 45 kg |
| Communication | CAN 2.0, RS485 |
Operating conditions and protection
| Recommended depth of discharge | 90% |
|---|---|
| Cycle life | ≥6000 cycles at 90% DOD and 70% EOL |
| Built-in circuit breaker | 125 A, 2-pole, 60 VDC |
| Ingress protection | IP20 |
| Operating temperature | Charge: 0-55°C; discharge: -20-55°C |
| Storage temperature | 0-35°C |
| Humidity | 5-95% |
| Maximum altitude | ≤2000 m |
| Warranty | 5 or 10 years, depending on installation location and warranty terms |
| Energy throughput | 16 MWh at 70% EOL |
| Certifications | UN38.3, IEC 62619, CE, UK, VDE 2510-50, CEI 0-21, FCC, UL 1973, UL 9540A |
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Sourcing and delivery under one contract
The SE-G5.1 Pro-B is a modular low-voltage storage battery for residential and light-commercial solar systems. Its cobalt-free LFP chemistry, built-in circuit breaker and intelligent battery management system support safe daily cycling, while automatic networking makes it straightforward to scale from a single module to a multi-battery installation.
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