• Safety
    Built in explosion relief device to dredge gas, and built in fire protection device to cut off the fire source for 3 seconds
  • High voltage stack
    Modules are connected in series without cable connection, and high-voltage platform improves system efficiency.
  • Thermal management
    Temperature detection of key parts, cell, power plug in, etc.
  • Wide temperature operation
    The heating function is optional to meet the application scenarios with low temperatures and no sense.
  • Environmental friendliness
    IP protection grade 65, anti corrosion grade ≥C2, environmental protection battery
  • Intelligent and visual
    Support remote upgrade, real time battery warning information push, LCD data display.
SKU: GB-L Category:


The Deye GB-L solar power off grid battery bank is an intelligent and safe lithium iron phosphate (LiFePO4) battery system designed for off-grid solar energy storage applications.

With a modular design, the GB-L system can be easily scaled up by connecting multiple 4.09 kWh battery modules in series to achieve system voltages from 204.8V up to 614.4V and system capacities from 8.18 kWh up to 24.56 kWh.

Safety is a key focus of the GB-L solar power off grid battery bank. It features built-in explosion relief to vent gas and fire protection to cut off the ignition source. The high-voltage battery modules connect in series without cables for increased reliability. Thermal sensors monitor cell and system temperatures, and the optional heating system allows operation down to -20°C.

With an IP65 rating and anti-corrosion protection, the GB-L solar power off grid battery bank can withstand challenging environments.

The smart GB-L solar power off grid battery bank enables remote monitoring and upgrades. It provides real-time system data like the state of charge on the LCD display and to connected devices via CAN bus and RS485. With a depth of discharge up to 90%, the GB-L provides excellent energy capacity to power off-grid loads.

Backed by a 10 year warranty, the long-lasting LiFePO4 chemistry offers over 6000 cycles to 70% of original capacity.

With dimensions from 650mm to 1530mm high depending on the number of modules, the floor-mounted GB-L solar power off grid battery bank scales to fit applications from small off-grid cabins to village microgrids. Weighing from 97kg to 253kg, the modular and compact design simplifies transport, installation and maintenance.

The advanced Deye GB-L solar power off grid battery bank intelligently stores and supplies solar energy for resilient off-grid power. Its safe, robust and flexible architecture meets the needs of challenging off-grid renewable energy projects.

Technical Data

Main Parameter
Cell Chemistry LiFePO4
Module Energy (kWh) 4.09
Module Nominal Voltage (V) 102.4
Module Capacity (Ah) 40
Battery Module Qty In Series (Optional) 2 3 4 5 6
System Nominal Voltage (V) 204.8 307.2 409.6 512 614.4
System Operating Voltage(V) 166.4~700
System Energy (kWh) 8.18 12.27 16.36 20.45 24.56
SystemUsableEnergy(kWh)[1] 7.36 11.04 14.72 18.40 22.10
Charge/Discharge Current (A)[2] Recommend 20
Nominal 40
Peak Discharge(2 mins, 25℃) 50
Working Temperature (°C) Charge: 0~55°C /Discharge: -20~ 60°C
LCD Display SOC%, Power, Total Voltage
Communication Port CAN2.0, RS485
Humidity 5%~90%
Altitude ≤2000m
IP Rating of Enclosure IP65
Storage Temperature (°C) 0~35°C
Dimension (W/D/H,mm) 540*385*650 540*385*870 540*385*1090 540*385*1310 540*385*1530
Weight(kg) 97 136 175 214 253
Installation Location Floor Mount
Recommend Depth of Discharge 90%
Cycle Life 25±2°C, 0.5C/0.5C, EOL70%≥6000
Warranty[3] 10 years
Certification CE / IEC62619 / VDE2510-50 / UL1973 / UL9540A / UN38.3

[1] DC Usable Energy, test conditions: 90% DOD, 0.2C charge & discharge at 25°C. System usable energy may vary due to system configuration parameters.
[2] The current is affected by temperature and SOC.
[3] The warranty is due whichever reached first of warranty period or life cycle power.





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