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HS17.5 vs Battery-Box Premium HVM 16.6 5 of 11 identical Swap Change batteries

FoxESS HS17.5 vs BYD Battery-Box Premium HVM 16.6

HS17.5
16.68 kWh LFP HV
Open battery page Datasheet PDF
VS
Battery-Box Premium HVM 16.6
16.56 kWh 96.0 % round-trip LFP HV
Open battery page Datasheet PDF
The verdict

Battery-Box Premium HVM 16.6 leads on the differences that matter

The largest is usable energy: 0.12 kWh apart. 5 of 11 comparable parameters are identical, with 22 more left out because at least one datasheet does not publish them.

See all 6 differences
How alike are they
5 of 11 comparable
parameters are identical
identical differs not published
01

What actually differs

6 of 11 parameters
Parameter HS17.5 Battery-Box Premium HVM 16.6 Difference
Usable energy 16.68 kWh 16.56 kWh 0.12 kWh apart
Max system capacity 19.6 kWh 49.7 kWh 30.1 kWh more room to expand
Nominal voltage 358 V 307 V 51 V apart
Max operating temperature 55 °C 50 °C 5 °C more heat tolerant
Ingress protection IP21 IP55 IP21 vs IP55
Operating voltage 302.4-408.8 V 240-354 V 302.4-408.8 V vs 240-354 V
02

Price offers

2 shops we track
Shop HS17.5 Battery-Box Premium HVM 16.6 At this shop
Solaris Energy Poland - 27 290 zł incl. VAT Only Battery-Box Premium HVM 16.6
www.solar-outlet.nl Netherlands - 6 989.95 € incl. VAT Only Battery-Box Premium HVM 16.6

All 2 offers for Battery-Box Premium HVM 16.6

Shop prices by brand: See 21 FoxESS offers · See 121 BYD offers

03

Full specification

Parameter HS17.5 Battery-Box Premium HVM 16.6 Difference
Capacity
Usable energy 16.68 kWh 16.56 kWh 0.12 kWh apart
Nominal energy 17.20 kWh - Not published by BYD
Depth of discharge - - Neither datasheet publishes this
Max system capacity 19.6 kWh 49.7 kWh +30.1 kWh for Battery-Box Premium HVM 16.6
Modules per stack 2-8 - Not published by BYD
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 - 96.0 % Not published by FoxESS
Cycle life 6000 cycles - Not published by BYD
Cycle test depth 80 % - Not published by BYD
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 358 V 307 V 51 V apart
Operating voltage 302.4-408.8 V 240-354 V 302.4-408.8 V vs 240-354 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 - - Neither datasheet publishes this
Weight per kWh - - Neither datasheet publishes this
Dimensions - 1694x585x298 mm Not published by FoxESS
Ingress protection IP21 IP55 IP21 vs IP55
Outdoor-rated - - Neither datasheet publishes this
Min operating temperature -10 °C -10 °C Same
Max operating temperature 55 °C 50 °C +5 °C for HS17.5
Warranty
Warranty 10 yrs 10 yrs Same
Warranted throughput - - Neither datasheet publishes this
04

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BYD Battery-Box Premium HVM 16.6 vs FoxESS ECS2900-H6
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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.