Sigenergy SigenStor BAT stack (1 module) vs FoxESS ECS2900-H3
VS
The verdict
SigenStor BAT stack (1 module) leads on the differences that matter
The largest is usable energy: 0.28 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 (1 module)
ECS2900-H3
Difference
Usable energy
8.06 kWh
7.78 kWh
0.28 kWh apart
Max system capacity
48.4 kWh
20.2 kWh
28.2 kWh more room to expand
Nominal energy
8.06 kWh
8.64 kWh
0.58 kWh apart
Weight
91.0 kg
100.3 kg
9.3 kg lighter
Weight per kWh
11.3 kg/kWh
12.9 kg/kWh
1.6 kg/kWh lighter
Ingress protection
IP66
IP65
IP66 vs IP65
Modules per stack
1-6
2-7
1-6 vs 2-7
Dimensions
640x850x260 mm
470x570x380 mm
640x850x260 mm vs 470x570x380 mm
Shop prices by brand: See 15 Sigenergy offers · See 21 FoxESS offers
02
Full specification
Parameter
SigenStor BAT stack (1 module)
ECS2900-H3
Difference
Capacity
Usable energy
8.06 kWh
7.78 kWh
0.28 kWh apart
Nominal energy
8.06 kWh
8.64 kWh
0.58 kWh apart
Depth of discharge
-
90 %
Not published by Sigenergy
Max system capacity
48.4 kWh
20.2 kWh
+28.2 kWh for SigenStor BAT stack (1 module)
Modules per stack
1-6
2-7
1-6 vs 2-7
Power
Continuous discharge power
4.00 kW
-
Not published by FoxESS
Continuous charge power
4.00 kW
-
Not published by FoxESS
Peak discharge power
6.00 kW
-
Not published by FoxESS
Power per kWh
0.50 kW/kWh
-
Not published by FoxESS
Efficiency and lifetime
Round-trip efficiency
-
95.0 %
Not published by Sigenergy
Cycle life
-
6000 cycles
Not published by Sigenergy
Cycle test depth
-
90 %
Not published by Sigenergy
Capacity at end of life
-
-
Neither datasheet publishes this
Self-discharge
-
-
Neither datasheet publishes this
Electrical
Voltage class
-
High voltage
Not published by Sigenergy
Nominal voltage
-
173 V
Not published by Sigenergy
Operating voltage
-
145.8-197.1 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
91.0 kg
100.3 kg
-9.3 kg for SigenStor BAT stack (1 module)
Weight per kWh
11.3 kg/kWh
12.9 kg/kWh
-1.6 kg/kWh for SigenStor BAT stack (1 module)
Dimensions
640x850x260 mm
470x570x380 mm
640x850x260 mm vs 470x570x380 mm
Ingress protection
IP66
IP65
IP66 vs IP65
Outdoor-rated
-
Yes
Not published by Sigenergy
Min operating temperature
-20 °C
-20 °C
Same
Max operating temperature
55 °C
55 °C
Same
Warranty
Warranty
-
-
Neither datasheet publishes this
Warranted throughput
-
-
Neither datasheet publishes this
03
Open all batteries
More useful comparisons
Similar capacity
Sigenergy SigenStor BAT stack (1 module) vs Huawei LUNA2000-7-S1
9 differences, the largest is usable energy
Similar capacity
Sigenergy SigenStor BAT stack (1 module) vs BYD Battery-Box Premium HVM 8.3
6 differences, the largest is usable energy
Similar capacity
Sigenergy SigenStor BAT stack (1 module) vs Sigenergy SigenStor BAT 8.0
5 differences, the largest is usable energy
Similar capacity
FoxESS ECS2900-H3 vs BYD Battery-Box Premium HVS 7.7
15 differences, the largest is max system capacity
Similar capacity
FoxESS ECS2900-H3 vs FoxESS ECS4300H-H2
8 differences, the largest is usable energy
Similar capacity
FoxESS ECS2900-H3 vs Deye GB-L8
9 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.