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Tower T14 vs HS15 5 of 11 identical Swap Change batteries

Dyness Tower T14 vs FoxESS HS15

Tower T14
14.21 kWh HV
Open battery page Datasheet PDF
VS
HS15
14.29 kWh LFP HV
Open battery page Datasheet PDF
The verdict

HS15 leads on the differences that matter

The largest is nominal energy: 0.53 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 Tower T14 HS15 Difference
Nominal energy 14.21 kWh 14.74 kWh 0.53 kWh apart
Nominal voltage 384 V 307 V 77 V apart
Usable energy 14.21 kWh 14.29 kWh 0.08 kWh apart
Max operating temperature 50 °C 55 °C 5 °C more heat tolerant
Ingress protection IP54 IP21 IP54 vs IP21
Modules per stack 2-6 2-8 2-6 vs 2-8

Shop prices by brand: See 20 Dyness offers · See 21 FoxESS offers

02

Full specification

Parameter Tower T14 HS15 Difference
Capacity
Usable energy 14.21 kWh 14.29 kWh 0.08 kWh apart
Nominal energy 14.21 kWh 14.74 kWh 0.53 kWh apart
Depth of discharge 100 % - Not published by FoxESS
Max system capacity - 19.6 kWh Not published by Dyness
Modules per stack 2-6 2-8 2-6 vs 2-8
Power
Continuous discharge power 8.52 kW - Not published by FoxESS
Continuous charge power 8.52 kW - Not published by FoxESS
Peak discharge power - - Neither datasheet publishes this
Power per kWh 0.60 kW/kWh - Not published by FoxESS
Efficiency and lifetime
Round-trip efficiency - - Neither datasheet publishes this
Cycle life 6000 cycles 6000 cycles Same
Cycle test depth - 80 % Not published by Dyness
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 307 V 77 V apart
Operating voltage - 259.2-350.4 V Not published by Dyness
Cell chemistry - LFP Not published by Dyness
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 187.0 kg - Not published by FoxESS
Weight per kWh 13.2 kg/kWh - Not published by FoxESS
Dimensions 1100x504x380 mm - Not published by FoxESS
Ingress protection IP54 IP21 IP54 vs IP21
Outdoor-rated - - Neither datasheet publishes this
Min operating temperature -10 °C -10 °C Same
Max operating temperature 50 °C 55 °C +5 °C for HS15
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.