Skip to main content
HS12.5 vs Ai-HB 125A 6 of 14 identical Swap Change batteries

FoxESS HS12.5 vs Solplanet Ai-HB 125A

HS12.5
11.91 kWh 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

Ai-HB 125A leads on the differences that matter

The largest is usable energy: 0.39 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 HS12.5 Ai-HB 125A Difference
Usable energy 11.91 kWh 11.52 kWh 0.39 kWh apart
Nominal energy 12.28 kWh 12.80 kWh 0.52 kWh apart
Min operating temperature -10 °C -20 °C 10 °C more cold tolerant
Max system capacity 19.6 kWh 20.5 kWh 0.9 kWh more room to expand
Max operating temperature 55 °C 50 °C 5 °C more heat tolerant
Ingress protection IP21 IP65 IP21 vs IP65
Modules per stack 2-8 3-8 2-8 vs 3-8
Operating voltage 216-292 V 200-292 V 216-292 V vs 200-292 V

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

02

Full specification

Parameter HS12.5 Ai-HB 125A Difference
Capacity
Usable energy 11.91 kWh 11.52 kWh 0.39 kWh apart
Nominal energy 12.28 kWh 12.80 kWh 0.52 kWh apart
Depth of discharge - 90 % Not published by FoxESS
Max system capacity 19.6 kWh 20.5 kWh +0.9 kWh for Ai-HB 125A
Modules per stack 2-8 3-8 2-8 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 % Not published by FoxESS
Cycle life 6000 cycles 6000 cycles Same
Cycle test depth 80 % 80 % Same
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 256 V 256 V Same
Operating voltage 216-292 V 200-292 V 216-292 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 - 167.5 kg Not published by FoxESS
Weight per kWh - 14.5 kg/kWh Not published by FoxESS
Dimensions - 860x540x390 mm Not published by FoxESS
Ingress protection IP21 IP65 IP21 vs IP65
Outdoor-rated - Yes Not published by FoxESS
Min operating temperature -10 °C -20 °C -10 °C for Ai-HB 125A
Max operating temperature 55 °C 50 °C +5 °C for HS12.5
Warranty
Warranty 10 yrs - Not published by Solplanet
Warranted throughput - - Neither datasheet publishes this
03

More useful comparisons

Open all batteries
Similar capacity
FoxESS HS12.5 vs FoxESS ECS4300H-H3
9 differences, the largest is usable energy
Similar capacity
FoxESS HS12.5 vs Pylontech Force H1 (5 modules)
7 differences, the largest is usable energy
Similar capacity
FoxESS HS12.5 vs BYD Battery-Box Premium HVM 11.0
6 differences, the largest is usable energy
04

Written summary

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