

This 4000Wh household energy storage system is a floor standing All in One home backup solution launched by Demuda. It integrates a 1800W hybrid inverter with a 4kWh LiFePO4 lithium iron phosphate battery in the same body, eliminating the cost and wiring links of a separate inverter. It is easy to place, install, and occupies a small area; Rated capacity of 4019.2Wh, output of 220VAC, system voltage of 12.8VDC, using LiFePO4 lithium iron phosphate battery cells, the electrochemical system is more stable, the cycle life is long, and combined with the built-in BMS battery management system for real-time protection, the electricity is safer to use; EPS switching time ≤ 20ms, can provide almost seamless continuous power supply to household appliances during power outages, with an output power range of 0-5kWh, covering daily household electricity loads; The overall size is 25 × 35 × 87cm, with a net weight of 40.6kg


Integrated Integration: The inverter and battery are integrated on the same machine, eliminating the need for additional inverters. It is easy to place and install on the ground, and occupies a small area
Adequate capacity: 4019.2Wh rated capacity, 220VAC output, can provide emergency backup power for household appliances
Safe and reliable: LiFePO4 lithium iron phosphate battery cells have a stable chemical system, long cycle life, and are protected by a built-in BMS battery management system
Quick switching: EPS switching time ≤ 20ms, almost seamless power supply during mains power outage
Complete certification: CE, IEC, UN38.3, MSDS, meeting EU access and lithium battery transportation requirements
Applicable scenarios: household appliances
►Product Parameters
| Model | 1800W+4019.2WH | |
|---|---|---|
| Rated power | 1800W | Inverter output power |
| Battery | 12.8V | 4S1P |
| AC Input Electrical Characteristics | ||
| Input Voltage Type | (L/N Line) | |
| Voltage | AC230V | |
| Rated input frequency | 45-65Hz | |
| Input Voltage Range | 90-280Vac +5Vac | |
| Maximum Input Power | 1500W Max | |
| PV Input Electrical Characteristics | ||
| Input interface | XT90 Mother Head | |
| Input Voltage Range | 18-110Vdc | |
| Maximum input Current | 15A max | |
| Maximum Input Power | 1200W max | |
| AC Output Electrical Characteristics | ||
| Output Voltage Type | Single-phase two-wire (L/N wire) | |
| Rated Output Voltage | 230Vac ±5Vac | |
| Rated input Frequency | 50Hz +0.5% | |
| Output Power Factor | ≥0.99 | |
| Overload | 5min @110%-120% Load 30s @120%-150% Load 2s @150%-200%Load 20ms @>200% Load | |
| EPS Switching Time | ≤20ms | |
| Protection Function | ||
| AC Input Undervoltage Protection | ||
| AC Input Overvoltage Protection | Stop Charging | |
| Battery Undervoltage Protection | Stop Discharging | |
| AC Output Undervoltage Protection | ||
| Size | 25*35*87cm | |
►Product Details





