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ECS2900-H3 vs SigenStor BAT 8.0 5 of 15 identical Swap Change batteries

FoxESS ECS2900-H3 vs Sigenergy SigenStor BAT 8.0

FoxESS ECS2900-H3
ECS2900-H3
7.78 kWh 95.0 % round-trip LFP HV
Open battery page Datasheet PDF
VS
Sigenergy SigenStor BAT 8.0
SigenStor BAT 8.0
7.8 kWh LFP HV
Open battery page Datasheet PDF
The verdict

SigenStor BAT 8.0 leads on the differences that matter

The largest is max system capacity: 28.2 kWh more room to expand. 5 of 15 comparable parameters are identical, with 18 more left out because at least one datasheet does not publish them.

See all 10 differences
How alike are they
5 of 15 comparable
parameters are identical
identical differs not published
01

What actually differs

10 of 15 parameters
Parameter ECS2900-H3 SigenStor BAT 8.0 Difference
Max system capacity 20.2 kWh 48.4 kWh 28.2 kWh more room to expand
Nominal energy 8.64 kWh 8.06 kWh 0.58 kWh apart
Weight 100.3 kg 73.0 kg 27.3 kg lighter
Weight per kWh 12.9 kg/kWh 9.4 kg/kWh 3.5 kg/kWh lighter
Cycle test depth 90 % 100 % 10 pp apart
Inverter None (battery only) Built in (all-in-one) None (battery only) vs Built in (all-in-one)
Ingress protection IP65 IP66 IP65 vs IP66
Modules per stack 2-7 1-6 2-7 vs 1-6
Operating voltage 145.8-197.1 V 300-600 V 145.8-197.1 V vs 300-600 V
Dimensions 470x570x380 mm 270x767x260 mm 470x570x380 mm vs 270x767x260 mm
02

Price offers

1 shop we track
Shop ECS2900-H3 SigenStor BAT 8.0 At this shop
solarbatterysupermarket.com.au Australia - 3 895 A$ incl. VAT Only SigenStor BAT 8.0

All 1 offer for SigenStor BAT 8.0

Shop prices by brand: See 21 FoxESS offers · See 15 Sigenergy offers

03

Full specification

Parameter ECS2900-H3 SigenStor BAT 8.0 Difference
Capacity
Usable energy 7.78 kWh 7.80 kWh Effectively the same
Nominal energy 8.64 kWh 8.06 kWh 0.58 kWh apart
Depth of discharge 90 % - Not published by Sigenergy
Max system capacity 20.2 kWh 48.4 kWh +28.2 kWh for SigenStor BAT 8.0
Modules per stack 2-7 1-6 2-7 vs 1-6
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 - 0.51 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 % 100 % 10 pp apart
Capacity at end of life - - Neither datasheet publishes this
Self-discharge - - Neither datasheet publishes this
Electrical
Voltage class High voltage High voltage Same
Nominal voltage 173 V - Not published by Sigenergy
Operating voltage 145.8-197.1 V 300-600 V 145.8-197.1 V vs 300-600 V
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 100.3 kg 73.0 kg -27.3 kg for SigenStor BAT 8.0
Weight per kWh 12.9 kg/kWh 9.4 kg/kWh -3.5 kg/kWh for SigenStor BAT 8.0
Dimensions 470x570x380 mm 270x767x260 mm 470x570x380 mm vs 270x767x260 mm
Ingress protection IP65 IP66 IP65 vs IP66
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
04

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05

Written summary

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.