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Deye BOS-GX BOS-G15: WA installer quotes & fit | WattMate
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Battery · Deye

Deye BOS-GX BOS-G15

CEC approved · Dec 2023

Usable capacity
13.82 kWh
Nominal capacity
15.36 kWh
Continuous power
15.36 kW
Peak power
125 kW

Value score

62/100
Good value

Solid specifications — a good choice for most homes.

Usable capacity (DOD)11/15

90% DOD - Good usable capacity

Warranty & terms18/20

49.0 MWh | 10yr | 70% retention - Top-tier warranty terms

Round-trip efficiency8/15

90% efficiency - Above average (below mid-range tier standard of 92%)

Cycle life12/15

6,000 cycles - Excellent longevity

Degradation3/10

3%/year degradation - Moderate capacity loss (exceeds mid-range tier max of 2.5%/yr)

Capacity & power

Usable capacityⓘ
13.82 kWh
Nominal capacity
15.36 kWh
Continuous power
15.36 kW
Peak power
125 kW

Warranty

Warranty period
10 yrs
Warranted throughputⓘ
49.05 MWh
Capacity at year 10
70%

Chemistry & performance

Chemistry
LiFePO4
Cycle life
6000 cycles
Round-trip efficiencyⓘ
90%
Depth of discharge
90%

Capabilities

VPP ready
—
Backup capable
Yes
Expandable
Yes

Documents & provenance

Datasheet
PDF

Documents

  • Datasheet
  • Installation manual

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About Deye

Value for money5/10

Price per kWh not available

Heat tolerance (Perth)5/15

Temperature specs not available — scored conservatively for Perth climate

What this means

  • Warranty allows ~0.97 cycles/day for 10 years
  • Degradation rate not specified — scored conservatively
  • No temperature data available — critical for Perth garage installations (40-50°C in summer)

Scored independently from manufacturer datasheets and the CEC register across usable capacity, warranty, efficiency, cycle life, degradation, value and heat tolerance. Missing specs are scored conservatively, never assumed.

Manufacturer profile, market presence and support.

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