Deye GB-SL
A high-voltage floor battery of 4.09 kWh GB-LM4.0 modules covering 8.18 to 24.54 kWh, rated to discharge at up to 60 degrees C with Type II surge protection.
Technical Specifications
| Parameter | DEYE-GB-SL |
|---|---|
| Battery Data | |
| Energy | 4.09 kWh |
| Usable Energy | 7.36-22.08 kWh |
| Module Energy | 4.09 kWh |
| System Energy | 8.18-24.54 kWh |
| Nominal Voltage | 102.4 V |
| Module Nominal Voltage | 102.4 V |
| System Nominal Voltage | 204.8-614.4 V |
| Operating Voltage | 179.2-691.2 V |
| Rated Capacity | 40 Ah |
| Module Capacity | 40 Ah |
| Cell Chemistry | LiFePO4 |
| Cycle Life | >6000 |
| End-of-Life Capacity | 70% |
| Recommended Depth of Discharge | 90% |
| Max. Charge Current | 40 A |
| Max. Discharge Current | 40 A |
| Max. Charge/Discharge Current | 40 A |
| Recommended Charge/Discharge Current | 20 A |
| Peak Discharge Current | 50 (120s) A |
| Modules in Series | 2-6 |
| Min. Battery Module Quantity | 2 |
| Battery Module Models | GB-LM4.0 |
| Parallel Units | 10 |
| Overvoltage Protection | DC Type II, AC Type II |
| Warranty (Years) | 10 |
| Mechanical & Interface | |
| Communication Ports | CAN2.0, RS485 |
| Dimensions | 540 x 1980 x 385 mm |
| Additional Notes | Charging Strategy for Li-ion Battery: Self-adaption to BMS |
| Module Dimensions | 540 x 220 x 385 mm |
| Module Weight | 39 kg |
| Weight | 137-293 kg |
| Environment & Protection | |
| Altitude | <2000 m |
| Charge Temperature | -20 to 55 °C |
| Discharge Temperature | -20 to 60 °C |
| Operating Humidity | 5-85% |
| Installation Location | Floor-Mounted |
| Enclosure IP Rating | IP65 |
| Storage Temperature | 0-35 °C |
| Cooling Type | Natural Cooling |
| Working Temperature | Charge: -20 to 55 / Discharge: -20 to 60 °C |
Figures are measured at the test conditions the manufacturer’s datasheet states. A dash means the manufacturer publishes no figure for that model.
Availability & grid compliance in UAE
| Market | UAE |
| Grid authority / regulator | DEWA, ADDC, SEWA |
| Quotation currency | AED |
| Support hours timezone | Asia/Dubai |
| Delivery & installation coverage | Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah |
Figures on this page are the manufacturer's own, measured at the test conditions the datasheet states — they do not change by country. What changes is the approval that has to be met before the unit is energised: in UAE that is DEWA, ADDC, SEWA. Confirm the grid code, import requirements and any local certification with them, or with us, before you order.
Key Features & Technical Highlights
- Keeps working at 60 degrees C: Discharge is rated from -20 up to 60 degrees C, five degrees past the common ceiling.
- 4.09 kWh GB-LM4.0 modules: Two to six modules of 102.4 V each combine into 8.18 to 24.54 kWh of storage.
- Type II surge shields: Overvoltage protection of DC Type II and AC Type II covers both sides of the connection.
- Ten towers side by side: Up to 10 stacks parallel for larger homes, over CAN2.0 and RS485.
- Silent natural cooling: No fans at all: natural cooling carries the heat while cycle life passes 6,000 cycles.
- Charge that adapts itself: The lithium charging strategy adapts itself to the BMS without manual profiles.
Frequently Asked Questions
How does the GB-SL handle very hot climates?
Its discharge window extends to 60 degrees C, higher than the 55-degree limit common elsewhere, and natural cooling avoids fan wear in dusty heat.
What storage sizes does the GB-SL offer?
From 8.18 kWh with two GB-LM4.0 modules to 24.54 kWh with six, of which 7.36 to 22.08 kWh is usable at 90% depth of discharge; ten towers can then be paralleled.
Does the GB-SL protect against grid surges?
Yes, it integrates Type II overvoltage protection on the DC side and Type II on the AC side.
How does charging work on the GB-SL?
The lithium charging strategy self-adapts to the BMS; current is 40 A continuous, 20 A recommended, with a 50 A discharge peak lasting 120 seconds.
What are the physical facts of a GB-SL tower?
It measures 540 x 1980 x 385 mm, weighs 137 to 293 kg depending on module count, seals to IP65 and stands on the floor below 2,000 m altitude.