Deye BOS-G25

23.04 kWh usable LFP High voltage

Compare with closest alternative Datasheet PDF

Usable (kWh)

23.04

Typical for its class

Round-trip (%)

Not published

Power (kW)

Not published

Cycles

6000

Typical · median 6000

Weight (kg)

420.0

Weak · 110.0 kg above median

Warranty (yrs)

Typical · median 10 yrs

The BOS-G series are high-voltage rack-format energy storage units designed for rapid installation and seamless expansion without necessitating a complete system overhaul. Their most distinguishing feature is modular scalability - capacity increases by adding further modules, and the system performs effectively both as a UPS backup and for PV self-consumption in businesses or larger homes.

BOS-G utilizes the LiFePO4 (LFP) chemistry, which, compared to NMC, is typically more thermally stable, better withstands intensive operation, and promotes a long service life. This translates to a high cycle count and long warranty period - meaning predictable costs and reduced risk of performance decline after several seasons for the user.

In practice, an intelligent Battery Management System (BMS) with cell balancing and a comprehensive safety suite, along with communication (e.g., CAN/RS485), facilitating integration with inverters and hybrid systems, is also crucial. BOS-G is a suitable choice for grid-connected, hybrid, and specific off-grid scenarios where safety, serviceability, and flexible expansion are key.

Ranking

29 batteries from 20 to 50 kWh

Metric This battery Median Position in class Rank in class

Round-trip efficiency - 95.0% Not published -

Power per kWh - 0.51 Not published -

Cycle life 6000 6000 Typical 2

Weight per kWh 18.2 11.1 Weak · bottom 2% 28

Warranty 10 yrs 10 yrs Typical 2

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

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Specifications

Open datasheet PDF

Usable energy 23.04 kWh What the battery delivers, full to empty

Nominal energy 25.60 kWh What the cells hold

Depth of discharge 90 %

Module energy 5.12 kWh

Modules per stack 3 to 12

Max system capacity 61.4 kWh

Max discharge current 100 A

Max charge current 100 A

Peak discharge current 125 A

Cycle life 6000 cycles At 90 % depth of discharge

Capacity at end of life 70 %

Voltage class High voltage

Nominal voltage 256.0 V

Operating voltage 208 to 292 V

Cell technology LFP LiFePO4

Cell management Cobalt-free

Dimensions 1629 × 530 × 602 mm Height × width × depth

Weight 420.0 kg 18.2 kg per kWh

Enclosure IP20

Mounting rack

Operating temperature -20 to 55 °C

Compatible inverters Deye (remote upgrade compatible)

Protocols CAN2.0RS485

Warranty 10 years

Certifications CEIEC62619VDE2510-50UL1973UL9540AUN38.3

Alternatives

All Deye batteries

Battery Usable Round-trip Power Voltage Difference

Deye BOS-G25 23.04 kWh - - High voltage You are here

BOS-G25 Pro 23.04 kWh - 25.6 kW HV Similar on paper

ECS4300H-H6 22.39 kWh 95.0% - HV -0.6 kWh

Force H1 (FH48074) 22.37 kWh - - HV -0.7 kWh

GB-L (6 modules in series) 22.1 kWh - 24.6 kW HV -0.9 kWh

Battery-Box Premium HVM 22.1 22.08 kWh 96.0% - HV -1.0 kWh

GB-L24 22.08 kWh - - HV -1.0 kWh

GB-SL-EU (6 modules in series) 22.08 kWh - - HV -1.0 kWh

Tower Pro TP23 21.89 kWh 95.0% 23.0 kW HV -1.1 kWh

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