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ECS4300H-H3 vs Ai-HB 125A 9 of 20 identical Swap Change batteries

FoxESS ECS4300H-H3 vs Solplanet Ai-HB 125A

FoxESS ECS4300H-H3
ECS4300H-H3
11.2 kWh 95.0 % round-trip LFP HV
Open battery page Datasheet PDF
VS
Solplanet Ai-HB 125A
Ai-HB 125A
11.52 kWh 95.0 % round-trip LFP HV
Open battery page Datasheet PDF
The verdict

ECS4300H-H3 leads on the differences that matter

The largest is usable energy: 0.32 kWh apart. 9 of 20 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 11 differences
How alike are they
9 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

11 of 20 parameters
Parameter ECS4300H-H3 Ai-HB 125A Difference
Usable energy 11.20 kWh 11.52 kWh 0.32 kWh apart
Max system capacity 29.0 kWh 20.5 kWh 8.5 kWh more room to expand
Nominal energy 12.44 kWh 12.80 kWh 0.36 kWh apart
Nominal voltage 173 V 256 V 83 V apart
Weight 115.5 kg 167.5 kg 52.0 kg lighter
Weight per kWh 10.3 kg/kWh 14.5 kg/kWh 4.2 kg/kWh lighter
Cycle test depth 90 % 80 % 10 pp apart
Max operating temperature 55 °C 50 °C 5 °C more heat tolerant
Modules per stack 2-7 3-8 2-7 vs 3-8
Operating voltage 145.8-197.1 V 200-292 V 145.8-197.1 V vs 200-292 V
Dimensions 494x570x380 mm 860x540x390 mm 494x570x380 mm vs 860x540x390 mm

Shop prices by brand: See 21 FoxESS offers · See 4 Solplanet offers

02

Full specification

Parameter ECS4300H-H3 Ai-HB 125A Difference
Capacity
Usable energy 11.20 kWh 11.52 kWh 0.32 kWh apart
Nominal energy 12.44 kWh 12.80 kWh 0.36 kWh apart
Depth of discharge 90 % 90 % Same
Max system capacity 29.0 kWh 20.5 kWh +8.5 kWh for ECS4300H-H3
Modules per stack 2-7 3-8 2-7 vs 3-8
Power
Continuous discharge power - 7.68 kW Not published by FoxESS
Continuous charge power - 6.40 kW Not published by FoxESS
Peak discharge power - - Neither datasheet publishes this
Power per kWh - 0.67 kW/kWh Not published by FoxESS
Efficiency and lifetime
Round-trip efficiency 95.0 % 95.0 % Same
Cycle life 6000 cycles 6000 cycles Same
Cycle test depth 90 % 80 % 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 256 V 83 V apart
Operating voltage 145.8-197.1 V 200-292 V 145.8-197.1 V vs 200-292 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) None (battery only) Same
Inverter power - - Neither datasheet publishes this
Grid connection - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 115.5 kg 167.5 kg -52.0 kg for ECS4300H-H3
Weight per kWh 10.3 kg/kWh 14.5 kg/kWh -4.2 kg/kWh for ECS4300H-H3
Dimensions 494x570x380 mm 860x540x390 mm 494x570x380 mm vs 860x540x390 mm
Ingress protection IP65 IP65 Same
Outdoor-rated Yes Yes Same
Min operating temperature -20 °C -20 °C Same
Max operating temperature 55 °C 50 °C +5 °C for ECS4300H-H3
Warranty
Warranty - - Neither datasheet publishes this
Warranted throughput - - Neither datasheet publishes this
03

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Solplanet Ai-HB 125A vs FoxESS HS12.5
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04

Written summary

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