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ISolar SPL 4K vs SI4.4M-13 3 of 10 identical Swap Change inverters

Easun Power ISolar SPL 4K vs SMA Solar SI4.4M-13

Easun Power
ISolar SPL 4K
3.2 kW Off-grid
Open inverter page Datasheet PDF
VS
SMA Solar SI4.4M-13
SMA Solar
SI4.4M-13
3.3 kW Off-grid
Open inverter page Datasheet PDF
The verdict

7 differences, and they point both ways

The largest is max efficiency: 2.5 pp more efficient. 3 of 10 comparable parameters are identical, with 22 more left out because at least one datasheet does not publish them.

See all 7 differences
How alike are they
3 of 10 comparable
parameters are identical
identical differs not published
01

What actually differs

7 of 10 parameters
Parameter ISolar SPL 4K SI4.4M-13 Difference
Max efficiency 93.0 % 95.5 % 2.5 pp more efficient
Rated AC power 3.20 kW 3.30 kW 0.10 kW apart
Max AC power 3.20 kW 5.50 kW 2.30 kW apart
Weight 9.8 kg 44.0 kg 34.2 kg lighter
Weight per kW 3.1 kg/kW 13.3 kg/kW 10.3 kg/kW lighter
Max operating temperature 55 °C 60 °C 5 °C more heat tolerant
Dimensions 468x295x120 mm 612x467x242 mm 468x295x120 mm vs 612x467x242 mm
02

Full specification

Parameter ISolar SPL 4K SI4.4M-13 Difference
AC output
Rated AC power 3.20 kW 3.30 kW 0.10 kW apart
Max AC power 3.20 kW 5.50 kW 2.30 kW apart
Grid connection Single-phase Single-phase Same
Nominal AC voltage 230 V 230 V Same
Max AC current - 60.0 A Not published by Easun Power
PV input
Max PV power - - Neither datasheet publishes this
DC/AC ratio - - Neither datasheet publishes this
Max DC voltage - 63 V Not published by Easun Power
MPPT voltage range - 41-63 V Not published by Easun Power
Start voltage - - Neither datasheet publishes this
MPP trackers - - Neither datasheet publishes this
Strings per tracker - - Neither datasheet publishes this
Max input current per tracker - - Neither datasheet publishes this
Efficiency
European efficiency - - Neither datasheet publishes this
Max efficiency 93.0 % 95.5 % +2.5 pp for SI4.4M-13
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage - 41-63 V (48 V nominal) Not published by Easun Power
Max charge current - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 9.8 kg 44.0 kg -34.2 kg for ISolar SPL 4K
Weight per kW 3.1 kg/kW 13.3 kg/kW -10.3 kg/kW for ISolar SPL 4K
Dimensions 468x295x120 mm 612x467x242 mm 468x295x120 mm vs 612x467x242 mm
Ingress protection - IP54 Not published by Easun Power
Cooling - - Neither datasheet publishes this
Noise - - Neither datasheet publishes this
Max operating temperature 55 °C 60 °C +5 °C for SI4.4M-13
Connectivity and safety
Wi-Fi - - Neither datasheet publishes this
Ethernet - Yes Not published by Easun Power
Arc fault protection - - Neither datasheet publishes this
Integrated DC switch - - Neither datasheet publishes this
Warranty
Warranty - 10 yrs Not published by Easun Power
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.