20KWh 51.2V 400Ah LFP Stackable Household Energy Storage System for Home Power Backup

HMZ-ESS20K-H ESS with IP65 waterproof rating can be installed outdoors and indoors, matching various off-grid systems, and can be used for a wide range of home energy, UPS, electric systems, telecom, solar system, wind power, and base station. Contact us for more details.

Additional information

System Capacity


Operating Voltage


Max Input Power


Max Output Power



L580*W350*H1800 mm



Product Details:

System Parameter
System Capacity 20KWh
Max Input Power/Max Output Power 5KW
Battery Types LifePo4
Level of Protection IP40
Weight 180kg
Size (L*W*H) 580*350*1800mm
Cycle Life ≥2000 Cycle
Type Stacked Lithium Battery System
Battery Technical Parameters
Rated Capacity 400Ah
Rated Voltage 51.2V
Operating Voltage 40V~58.4V
Charging Current/Discharging Current 100A
Max Charge Current/Max Discharge Current 110A
Communication Mode CAN/RS232/RS485
Cooling Mode Natural Cooling
Level of Protection IP40
Operating Temperature Charge: 0℃~60℃

Discharge: -20~60℃

Inverter Parameter
Max Charge Power/Max Output Power 5KW
DC Input Power Voltage 40v~60V
DC Output Voltage 40V~58V
Phase Number Single Phase
AC Input Voltage/AC Output Voltage 220V
Rated Frequency 50/60Hz
MPPT Parameter
Max PV Voltage 500VDC
PV Operating Voltage Range 125-500VDC
MPPT Voltage Range 125-500VDC
Max Input Power 6600wW
Solar Charging Current 2*14A

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