

Deye GB-L-Pro-Pack4.1 Modular Battery LiFePO4 4.09kWh for HV System
The Deye GB-L-Pro-Pack4.1 battery module is the expansion block of the GB-L Pro high-voltage residential storage system: 4.09kWh of LiFePO4 cells, 40Ah at 102.4V nominal, in a stackable 39 kg enclosure rated IP65.
It sits on top of the GB-LBS-Pro base module, 2 to 6 modules per tower, covering the 8 to 24kWh configurations of the range (GB-L8 Pro up to GB-L24 Pro) with cluster voltages from 204.8 to 614.4V. The LFP cells are rated for more than 6,000 cycles at 90% DoD and carry a 10-year warranty. The system, designed for Deye single-phase and three-phase high-voltage hybrid inverters, includes an explosion relief vent and a fire protection device.
Key features
Technical specifications
| Feature | Value |
|---|---|
| Product code | GB-L-Pro-Pack4.1-2 |
| Cell chemistry | LiFePO4 |
| Rated energy | 4.09kWh |
| Nominal voltage | 102.4V |
| Capacity | 40Ah |
| Recommended charge/discharge current | 20A |
| Rated charge/discharge current | 40A |
| Peak discharge current | 50A for 2 minutes at 25 °C |
| Depth of discharge (DoD) | 90% recommended |
| Cycle life | ≥ 6,000 (25 °C ±2, 0.5C/0.5C, 70% EOL) |
| Modules in series per system | 2 to 6 (8-24kWh) on the GB-LBS-Pro base module |
| System voltage | 204.8-614.4V |
| Communication | CAN 2.0, RS485 |
| Ingress protection | IP65 |
| Operating temperature | -20 to +55 °C in charge and discharge |
| Dimensions (W × D × H) | 540 × 385 × 220 mm |
| Weight | 39 kg |
| Certifications | CE, IEC 62619, VDE 2510-50, UN38.3 |
| Warranty | 10 years (70% EOL) |
Documentation
PDFBrochure Deye GB-L Pro (EU)Official manufacturer documentPDFGB-L Pro installation and operating manual (EU)Official manufacturer documentPDFGuida all'espansione GB-L ProOfficial manufacturer documentInstallation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.
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