Deye BOS-A (7 modules in series)

48.38 kWh usable LFP High voltage

Compare with closest alternative Datasheet PDF

Usable (kWh)

48.38

Strong · top 2%

Round-trip (%)

Not published

Power (kW)

Not published

Cycles

6000

Typical · median 6000

Weight (kg)

538.0

Typical · median 310.0 kg

Warranty (yrs)

Typical · median 10 yrs

The BOS-A series are modular LiFePO4 (LFP) energy storage units designed for building scalable high-voltage (HV) systems for homes and small businesses. The applied LFP chemistry stands out for its high thermal safety level and stable performance during daily cycling, which in practice translates to a longer lifespan and lower degradation risk compared to NMC-based solutions. Each module operates within a rack configuration, and the intelligent BMS automatically monitors charging and discharging, balances cells, and protects against overloading and extreme temperatures.

The BOS-A is designed as a scalable system - you can add more modules as energy consumption, PV system capacity, or backup power needs increase. CAN communication facilitates seamless integration with hybrid inverters and on-grid or off-grid systems, where smooth mode switching is essential. The rated cycle life and 10-year warranty ensure predictable energy costs over the long term - both for prosumers and businesses.

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 11.1 11.1 Typical 15

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 48.38 kWh What the battery delivers, full to empty

Nominal energy 53.76 kWh What the cells hold

Depth of discharge 90 %

Module energy 7.68 kWh

Modules per stack 7 to 23

Max system capacity 176.6 kWh

Max discharge current 150 A

Max charge current 150 A

Cycle life 6000 cycles At 90 % depth of discharge

Capacity at end of life 70 %

Voltage class High voltage

Nominal voltage 268.8 V

Operating voltage 235 to 302 V

Cell technology LFP LiFePO4

Cell management Cobalt-free

Dimensions 1351 × 629 × 605 mm Height × width × depth

Weight 538.0 kg 11.1 kg per kWh

Enclosure IP20

Mounting rack

Operating temperature -20 to 55 °C

Compatible inverters Deye (mentioned: remote upgrade compatible)

Protocols CAN2.0RS485

Warranty 10 years

Certifications CEIEC62619IEC62040UN38.3VDE-2510

Alternatives

All Deye batteries

Battery Usable Round-trip Power Voltage Difference

Deye BOS-A (7 modules in series) 48.38 kWh - - High voltage You are here

BOS-G50 46.08 kWh - - HV -2.3 kWh

BOS-G55 50.68 kWh - - HV +2.3 kWh

BOS-G45 41.47 kWh - - HV -6.9 kWh

BOS-G60 55.29 kWh - - HV +6.9 kWh

BOS-G60 Pro 55.3 kWh - 61.4 kW HV +6.9 kWh

BOS-G40 36.86 kWh - - HV -11.5 kWh

BOS-G40 Pro 36.86 kWh - 41.0 kW HV -11.5 kWh

SigenStor BAT stack (6 modules) 48.36 kWh - 24.0 kW - Similar on paper

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