DEYE GB-SL Battery System

Solar BatteriesModel GB-SL

Deye 8.18–24.54 kWh 204.8–614.4 V Lithium Solar Battery 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.

  • System Energy: 8.18-24.54 kWh
  • Usable Energy: 7.36-22.08 kWh
  • System Nominal Voltage: 204.8-614.4 V
  • Cycle Life: >6000
AED 2,400incl. VAT

In stock

  • Delivered within 3 business days, door to door, to every market we serve.
  • Dispatched the same business day for an order placed before 21:00 (Dubai time), or the next business day after.
  • 10-year warranty
  • Authorised Deye distributor for the Middle East — certificate No. GFKFLFI1.
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Deye 8.18–24.54 kWh 204.8–614.4 V Lithium Solar Battery GB-SL features

  • 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.

About the Deye 8.18–24.54 kWh 204.8–614.4 V Lithium Solar Battery GB-SL

Where summer heat makes other packs derate, this one keeps working. The Deye GB-SL is rated to discharge from -20 up to 60 degrees C, five degrees beyond the usual ceiling, while its IP65 tower stands outside on 540 x 385 mm of ground, rising 1,980 mm. Inside, GB-LM4.0 modules of 4.09 kWh and 102.4 V each combine in twos through sixes for 8.18 to 24.54 kWh, of which 7.36 to 22.08 kWh is usable at the recommended 90% depth of discharge, across 204.8 to 614.4 V nominal. Ten stacks can be paralleled when one is not enough. Type II overvoltage protection guards both the DC and AC sides against surges, the charging strategy adapts itself to the BMS, and natural cooling means no fans to age or hum. Current runs 40 A continuous with a 50 A peak for 120 seconds, cycle life passes 6,000 cycles to 70% capacity, certification covers CE, IEC 62619, VDE 2510-50 and UN38.3, and the warranty is 10 years. We are an authorised Deye distributor and supply the GB-SL from our own stock, with technical support before and after the sale.

Specifications last updated 10 February 2026

Deye 8.18–24.54 kWh 204.8–614.4 V Lithium Solar Battery GB-SL full specifications

Electrical(25)

Energy4.09 kWh
Usable Energy7.36-22.08 kWh
Module Energy4.09 kWh
System Energy8.18-24.54 kWh
Nominal Voltage102.4 V
Module Nominal Voltage102.4 V
System Nominal Voltage204.8-614.4 V
Operating Voltage179.2-691.2 V
Rated Capacity40 Ah
Module Capacity40 Ah
Cell ChemistryLiFePO4
Cycle Life>6000
End-of-Life Capacity70 %
Recommended Depth of Discharge90 %
Max. Charge Current40 A
Max. Discharge Current40 A
Max. Charge/Discharge Current40 A
Recommended Charge/Discharge Current20 A
Peak Discharge Current50 (120s) A
Modules in Series2-6
Min. Battery Module Quantity2
Battery Module ModelsGB-LM4.0
Parallel Units10
Overvoltage ProtectionDC Type II, AC Type II
Warranty (Years)10

Mechanical(6)

Communication PortsCAN2.0, RS485
Dimensions540 x 1980 x 385 mm
Additional NotesCharging Strategy for Li-ion Battery: Self-adaption to BMS
Module Dimensions540 x 220 x 385 mm
Module Weight39 kg
Weight137-293 kg

Environmental(9)

Altitude<2000 m
Charge Temperature-20 to 55 °C
Discharge Temperature-20 to 60 °C
Operating Humidity5-85 %
Installation LocationFloor-Mounted
Enclosure IP RatingIP65
Storage Temperature0-35 °C
Cooling TypeNatural Cooling
Working TemperatureCharge: -20 to 55 / Discharge: -20 to 60 °C

Certifications(4)

  • CE
  • IEC 62619
  • VDE 2510-50
  • UN38.3

Downloads & support

PDFThe manufacturer's sheet, to print or share

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.

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