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HS10 vs EP11 6 of 14 identical Swap Change batteries

FoxESS HS10 vs FoxESS EP11

HS10
9.53 kWh LFP HV
Open battery page Datasheet PDF
VS
FoxESS EP11
EP11
9.33 kWh 95.0 % round-trip 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 HS10 EP11 Difference
Usable energy 9.53 kWh 9.33 kWh 0.20 kWh apart
Cycle life 6000 cycles 4000 cycles 2000 cycles more
Max system capacity 19.6 kWh 37.3 kWh 17.7 kWh more room to expand
Nominal energy 9.83 kWh 10.36 kWh 0.53 kWh apart
Nominal voltage 205 V 384 V 179 V apart
Cycle test depth 80 % 90 % 10 pp apart
Ingress protection IP21 IP65 IP21 vs IP65
Operating voltage 172.8-233.6 V 348-438 V 172.8-233.6 V vs 348-438 V

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02

Full specification

Parameter HS10 EP11 Difference
Capacity
Usable energy 9.53 kWh 9.33 kWh 0.20 kWh apart
Nominal energy 9.83 kWh 10.36 kWh 0.53 kWh apart
Depth of discharge - 90 % Not published by FoxESS
Max system capacity 19.6 kWh 37.3 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 6000 cycles 4000 cycles +2000 cycles for HS10
Cycle test depth 80 % 90 % 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 205 V 384 V 179 V apart
Operating voltage 172.8-233.6 V 348-438 V 172.8-233.6 V vs 348-438 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 IP21 IP65 IP21 vs IP65
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.