Deye BOS-G25 vs Sigenergy SigenStor BAT 8.0 system (3 modules)
VS
The verdict
9 differences, and they point both ways
The largest is usable energy: 0.36 kWh apart. 3 of 12 comparable parameters are identical, with 21 more left out because at least one datasheet does not publish them.
See all 9 differencesHow alike are they
3
of 12 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
9 of 12 parameters
What actually differs
Parameter
BOS-G25
SigenStor BAT 8.0 system (3 modules)
Difference
Usable energy
23.04 kWh
23.40 kWh
0.36 kWh apart
Max system capacity
61.4 kWh
48.4 kWh
13.1 kWh more room to expand
Nominal energy
25.60 kWh
24.18 kWh
1.42 kWh apart
Weight
420.0 kg
237.0 kg
183.0 kg lighter
Weight per kWh
18.2 kg/kWh
10.1 kg/kWh
8.1 kg/kWh lighter
Inverter
None (battery only)
Built in (all-in-one)
None (battery only) vs Built in (all-in-one)
Ingress protection
IP20
IP66
IP20 vs IP66
Modules per stack
3-12
1-6
3-12 vs 1-6
Dimensions
1629x530x602 mm
1180x850x260 mm
1629x530x602 mm vs 1180x850x260 mm
Shop prices by brand: See 44 Deye offers · See 15 Sigenergy offers
02
Full specification
Parameter
BOS-G25
SigenStor BAT 8.0 system (3 modules)
Difference
Capacity
Usable energy
23.04 kWh
23.40 kWh
0.36 kWh apart
Nominal energy
25.60 kWh
24.18 kWh
1.42 kWh apart
Depth of discharge
90 %
-
Not published by Sigenergy
Max system capacity
61.4 kWh
48.4 kWh
+13.1 kWh for BOS-G25
Modules per stack
3-12
1-6
3-12 vs 1-6
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
-
0.51 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)
Built in (all-in-one)
None (battery only) vs Built in (all-in-one)
Inverter power
-
-
Neither datasheet publishes this
Grid connection
-
-
Neither datasheet publishes this
Backup power
-
-
Neither datasheet publishes this
Physical
Weight
420.0 kg
237.0 kg
-183.0 kg for SigenStor BAT 8.0 system (3 modules)
Weight per kWh
18.2 kg/kWh
10.1 kg/kWh
-8.1 kg/kWh for SigenStor BAT 8.0 system (3 modules)
Dimensions
1629x530x602 mm
1180x850x260 mm
1629x530x602 mm vs 1180x850x260 mm
Ingress protection
IP20
IP66
IP20 vs IP66
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
More useful comparisons
Similar capacity
Deye BOS-G25 vs Deye BOS-G25 Pro
6 differences, the largest is max system capacity
Similar capacity
Deye BOS-G25 vs FoxESS ECS4300H-H6
10 differences, the largest is usable energy
Similar capacity
Deye BOS-G25 vs Pylontech Force H1 (FH48074)
11 differences, the largest is usable energy
Similar capacity
Sigenergy SigenStor BAT 8.0 system (3 modules) vs Sigenergy SigenStor BAT stack (3 modules)
3 differences, the largest is usable energy
Similar capacity
Sigenergy SigenStor BAT 8.0 system (3 modules) vs Deye AI-W5.1-B (5 modules)
11 differences, the largest is usable energy
04
Written summary
Checking cache...
Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.