Home Energy Storage All-in-One

Overview

The YueQi home energy storage all-in-one unit combines a pure sine wave inverter, an MPPT solar charge controller and a LiFePO4 battery in one cabinet. The catalog lists two models: YQ-4.2KW-8KWH with a rated AC output of 4.2 kW and an 8 kWh battery, and YQ-6.2KW-16KWH with a rated AC output of 6.2 kW and a 16 kWh battery. The design aims to store surplus solar energy and supply household loads during outages or peak-tariff hours.

Typical Applications

• Residential solar self-consumption with battery backup
• Backup power for essential household loads during grid outages
• Peak shaving and time-of-use load shifting where tariffs allow
• Small commercial sites that need a compact storage unit

Key Features

• Pure sine wave output with a switching design listed in the catalog (transfer time to be confirmed)
• Overload capacity: 5 seconds at 140 percent load and 10 seconds at 100 to 140 percent load, in battery mode
• Smart BMS monitoring of battery status, with app-based monitoring and strategy settings listed in the catalog (to be confirmed for app availability)
• Catalog protection functions: over-charge, over-discharge, over-current, over-temperature and short circuit
• IP21 protection rating as stated in the catalog

Specification Table: Home Energy Storage Models

Parameter	YQ-4.2KW-8KWH	YQ-6.2KW-16KWH
Rated AC output power	4.2 kW	6.2 kW
Peak AC output power	8.4 kW	12.4 kW
AC input voltage	230 VAC	230 VAC
AC input range	90 to 280 V (normal mode); 170 to 280 V (UPS mode)	90 to 280 V (normal mode); 170 to 280 V (UPS mode)
AC output voltage and frequency	220/230 V plus or minus 5 percent; 50/60 Hz plus or minus 0.1 percent	220/230 V plus or minus 5 percent; 50/60 Hz plus or minus 0.1 percent
Waveform	Pure sine wave	Pure sine wave
Transfer time	To be confirmed (catalog shows a date-format value)	To be confirmed (catalog shows a date-format value)
Maximum efficiency	94 percent at 48 VDC (to be confirmed for 25.6 VDC battery)	94 percent at 48 VDC
Solar input	MPPT; 27 A / 6200 W (to be confirmed)	MPPT; 27 A / 9000 W
Solar input voltage range	60 to 500 V; open circuit 500 V	60 to 500 V; open circuit 500 V
Battery nominal voltage	25.6 VDC (to be confirmed)	51.2 VDC
Battery energy	8 kWh (0.5C, 25 C); 7.2 kWh usable at 90 percent depth of discharge	16 kWh (0.5C, 25 C); 14.4 kWh usable at 90 percent depth of discharge
Battery voltage range	22.0 to 29.2 VDC	44.0 to 58.4 VDC
Max charge and discharge current	150 A / 150 A	150 A / 150 A
Battery net weight	75.2 kg	129 kg
Battery dimensions (mm)	780 x 520 x 275	1070 x 520 x 275
Protection rating	IP21	IP21
Operating temperature	Unit: -10 to 50 C; battery: -10 to 65 C (to be confirmed)	Unit: -10 to 50 C; battery: -10 to 65 C (to be confirmed)
Relative humidity	5 to 95 percent, non-condensing	5 to 95 percent, non-condensing
Maximum altitude	4000 m (derating above 1000 m)	4000 m (derating above 1000 m)

Certification

The product literature shows the CE mark and the UN 38.3 transport test mark for the home storage range. Certificate copies available on request. Installation, grid connection and electrical safety approvals for each destination country are not included in this page and must be confirmed separately with the local authority or certification body.

OEM and ODM Options

YueQi supports OEM and ODM development for home storage units. Options include enclosure design, display and app features, communication protocol, battery capacity within the BMS limits, labeling and packaging. Minimum order quantity, lead time and tooling cost are to be confirmed in writing for each project. Please share your target market, inverter standard, solar array size and load profile to begin a technical review.

Next Steps

Request the full datasheet, the installation manual, the BMS protection list and the certificate copies for the model you are evaluating. Items marked "to be confirmed" on this page will be verified and confirmed in writing before they are used in a quotation or product listing.