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EP11 vs HS10 6 of 14 identical Swap Change batteries

FoxESS EP11 vs FoxESS HS10

FoxESS EP11
EP11
9.33 kWh 95.0 % round-trip LFP HV
Open battery page Datasheet PDF
VS
HS10
9.53 kWh LFP HV
Open battery page Datasheet PDF
The verdict

8 differences, and they point both ways

The largest is usable energy: 0.20 kWh apart. 6 of 14 comparable parameters are identical, with 19 more left out because at least one datasheet does not publish them.

See all 8 differences
How alike are they
6 of 14 comparable
parameters are identical
identical differs not published
01

What actually differs

8 of 14 parameters
Parameter EP11 HS10 Difference
Usable energy 9.33 kWh 9.53 kWh 0.20 kWh apart
Cycle life 4000 cycles 6000 cycles 2000 cycles more
Max system capacity 37.3 kWh 19.6 kWh 17.7 kWh more room to expand
Nominal energy 10.36 kWh 9.83 kWh 0.53 kWh apart
Nominal voltage 384 V 205 V 179 V apart
Cycle test depth 90 % 80 % 10 pp apart
Ingress protection IP65 IP21 IP65 vs IP21
Operating voltage 348-438 V 172.8-233.6 V 348-438 V vs 172.8-233.6 V

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02

Full specification

Parameter EP11 HS10 Difference
Capacity
Usable energy 9.33 kWh 9.53 kWh 0.20 kWh apart
Nominal energy 10.36 kWh 9.83 kWh 0.53 kWh apart
Depth of discharge 90 % - Not published by FoxESS
Max system capacity 37.3 kWh 19.6 kWh +17.7 kWh for EP11
Modules per stack - 2-8 Not published by FoxESS
Power
Continuous discharge power - - Neither datasheet publishes this
Continuous charge power - - Neither datasheet publishes this
Peak discharge power - - Neither datasheet publishes this
Power per kWh - - Neither datasheet publishes this
Efficiency and lifetime
Round-trip efficiency 95.0 % - Not published by FoxESS
Cycle life 4000 cycles 6000 cycles +2000 cycles for HS10
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 384 V 205 V 179 V apart
Operating voltage 348-438 V 172.8-233.6 V 348-438 V vs 172.8-233.6 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 99.0 kg - Not published by FoxESS
Weight per kWh 10.6 kg/kWh - Not published by FoxESS
Dimensions 625x710x147 mm - Not published by FoxESS
Ingress protection IP65 IP21 IP65 vs IP21
Outdoor-rated Yes - Not published by FoxESS
Min operating temperature -10 °C -10 °C Same
Max operating temperature 55 °C 55 °C Same
Warranty
Warranty 10 yrs 10 yrs Same
Warranted throughput - - Neither datasheet publishes this
03

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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.