Deye GB-SL-EU (5 modules in series)

18.4 kWh usable LFP High voltage Built-in inverter

Compare with closest alternative Datasheet PDF

Usable (kWh)

18.40

Strong · top 18%

Round-trip (%)

Not published

Power (kW)

Not published

Cycles

6000

Typical · median 6000

Weight (kg)

254.0

Typical · median 189.8 kg

Warranty (yrs)

Typical · median 10 yrs

The GB-SL-EU (All In One) series is an integrated energy storage system of a stackable type, where the hybrid inverter and high-voltage battery pack form a single, cohesive system-eliminating cable mess between modules. Its standout features are the all-in-one construction and high-voltage modular architecture, which enhance efficiency and simplify servicing. The applied chemistry, LFP (LiFePO4), prioritizes thermal safety, stable operation, and long lifespan-offering a practical advantage over NMC in applications demanding high-impact use and parameter repeatability.

In practice, the declared over 6000 cycles and 10-year warranty ensure predictable energy storage costs and trouble-free operation for years. The system is scalable by adding modules and enabling parallel operation of multiple units, making it suitable from single-family homes to small businesses, and even off-grid and backup applications. The GB-SL-EU works with both on-grid and off-grid installations, as well as hybrid systems, including those capable of energy harvesting from generators.

Ranking

36 batteries from 12 to 20 kWh

Metric This battery Median Position in class Rank in class

Round-trip efficiency - 95.0% Not published -

Power per kWh - 0.68 Not published -

Cycle life 6000 6000 Typical 5

Weight per kWh 13.8 12.4 Typical 23

Warranty 10 yrs 10 yrs Typical 3

Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

See 44 Deye offers

Specifications

Open datasheet PDF

Usable energy 18.4 kWh What the battery delivers, full to empty

Nominal energy 20.45 kWh What the cells hold

Depth of discharge 90 %

Module energy 4.09 kWh

Modules per stack 2 to 6

Max system capacity 24.5 kWh

Units in parallel 10

Max discharge current 40 A

Max charge current 40 A

Peak discharge current 50 A

Cycle life 6000 cycles At 90 % depth of discharge

Capacity at end of life 70 %

Voltage class High voltage

Nominal voltage 512.0 V

Operating voltage 179 to 691 V

Cell technology LFP LiFePO4

Cell management Cobalt-freeThermal management

Phases Three-phase

MPPT trackers 2

Dimensions 1760 × 540 × 385 mm Height × width × depth

Weight 254.0 kg 13.8 kg per kWh

Enclosure IP65

Mounting floor

Cooling passive

Noise 55 dB

Operating temperature -20 to 60 °C

Protocols RS485CANCAN2.0

Warranty 10 years

Certifications CEIEC 62619VDE 2510-50UN38.3CEI 0-21VDE-AR-N 4105NRS 097IEC 62116IEC 61727G99G98VDE 0126-1-1RD 1699C10-11IEC/EN 61000-6-1/2/3/4IEC/EN 62109-1IEC/EN 62109-2