Sigenergy SigenStor BAT stack (3 modules) vs Deye BOS-G25
VS
The verdict
8 differences, and they point both ways
The largest is usable energy: 1.14 kWh apart. 4 of 12 comparable parameters are identical, with 21 more left out because at least one datasheet does not publish them.
See all 8 differencesHow alike are they
4
of 12 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
8 of 12 parameters
What actually differs
Parameter
SigenStor BAT stack (3 modules)
BOS-G25
Difference
Usable energy
24.18 kWh
23.04 kWh
1.14 kWh apart
Max system capacity
48.4 kWh
61.4 kWh
13.1 kWh more room to expand
Nominal energy
24.18 kWh
25.60 kWh
1.42 kWh apart
Weight
237.0 kg
420.0 kg
183.0 kg lighter
Weight per kWh
9.8 kg/kWh
18.2 kg/kWh
8.4 kg/kWh lighter
Ingress protection
IP66
IP20
IP66 vs IP20
Modules per stack
1-6
3-12
1-6 vs 3-12
Dimensions
1180x850x260 mm
1629x530x602 mm
1180x850x260 mm vs 1629x530x602 mm
Shop prices by brand: See 11 Sigenergy offers · See 44 Deye offers
02
Full specification
Parameter
SigenStor BAT stack (3 modules)
BOS-G25
Difference
Capacity
Usable energy
24.18 kWh
23.04 kWh
1.14 kWh apart
Nominal energy
24.18 kWh
25.60 kWh
1.42 kWh apart
Depth of discharge
-
90 %
Not published by Sigenergy
Max system capacity
48.4 kWh
61.4 kWh
+13.1 kWh for BOS-G25
Modules per stack
1-6
3-12
1-6 vs 3-12
Power
Continuous discharge power
12.00 kW
-
Not published by Deye
Continuous charge power
12.00 kW
-
Not published by Deye
Peak discharge power
18.00 kW
-
Not published by Deye
Power per kWh
0.50 kW/kWh
-
Not published by Deye
Efficiency and lifetime
Round-trip efficiency
-
-
Neither datasheet publishes this
Cycle life
-
6000 cycles
Not published by Sigenergy
Cycle test depth
-
90 %
Not published by Sigenergy
Capacity at end of life
-
70 %
Not published by Sigenergy
Self-discharge
-
-
Neither datasheet publishes this
Electrical
Voltage class
-
High voltage
Not published by Sigenergy
Nominal voltage
-
256 V
Not published by Sigenergy
Operating voltage
-
208-292 V
Not published by Sigenergy
Cell chemistry
LFP
LFP
Same
Active cell balancing
-
-
Neither datasheet publishes this
Thermal management
-
-
Neither datasheet publishes this
Built-in inverter
Inverter
None (battery only)
None (battery only)
Same
Inverter power
-
-
Neither datasheet publishes this
Grid connection
-
-
Neither datasheet publishes this
Backup power
-
-
Neither datasheet publishes this
Physical
Weight
237.0 kg
420.0 kg
-183.0 kg for SigenStor BAT stack (3 modules)
Weight per kWh
9.8 kg/kWh
18.2 kg/kWh
-8.4 kg/kWh for SigenStor BAT stack (3 modules)
Dimensions
1180x850x260 mm
1629x530x602 mm
1180x850x260 mm vs 1629x530x602 mm
Ingress protection
IP66
IP20
IP66 vs IP20
Outdoor-rated
-
-
Neither datasheet publishes this
Min operating temperature
-20 °C
-20 °C
Same
Max operating temperature
55 °C
55 °C
Same
Warranty
Warranty
-
10 yrs
Not published by Sigenergy
Warranted throughput
-
-
Neither datasheet publishes this
03
Open all batteries
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04
Written summary
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Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.