Specifications
| Parameter | YQ-4.2KW-8KWH | YQ-6.2KW-16KWH |
|---|---|---|
| Rated AC output power | 4.2 kW | 6.2 kW |
| Peak AC power | 8.4 kW | 12.4 kW |
| Rated input voltage | 230 VAC | 230 VAC |
| Input voltage range | 90 to 280 VAC (normal); 170 to 280 VAC (UPS) | 90 to 280 VAC (normal); 170 to 280 VAC (UPS) |
| Output | 220 / 230 V, 50 / 60 Hz, pure sine wave | 220 / 230 V, 50 / 60 Hz, pure sine wave |
| Power factor | 0.6 to 1 | 0.6 to 1 |
| Switching time | To be confirmed in writing | To be confirmed in writing |
| Overload capacity (battery mode) | 5 s at 140% or more; 10 s at 100 to 140% | 5 s at 140% or more; 10 s at 100 to 140% |
| Maximum efficiency | To be confirmed in writing | 94% (catalog: at 48 VDC) |
| Solar input | MPPT; 60 to 500 V; open circuit 500 V; max charge current 120 A | MPPT; 60 to 500 V; open circuit 500 V; max charge current 120 A |
| PV power input | To be confirmed in writing | 27 A / 9,000 W |
| Battery nominal voltage | 25.6 VDC | 51.2 VDC |
| Battery rated energy | 8 kWh (0.5C, 25 °C) | 16 kWh (0.5C, 25 °C) |
| Usable energy (90% depth of discharge) | 7.2 kWh | 14.4 kWh |
| Max charge / discharge current | 150 A / 150 A | 150 A / 150 A |
| Battery working voltage range | 22.0 to 29.2 VDC | 44.0 to 58.4 VDC |
| Battery pack net weight | 75.2 kg | 129 kg |
| Battery pack dimensions (mm) | 780 x 520 x 275 | 1070 x 520 x 275 |
| Cycle life | To be confirmed in writing | To be confirmed in writing |
| Protection rating | IP21 | IP21 |
| Operating temperature | Inverter -10 to 50 °C; battery -10 to 65 °C | Inverter -10 to 50 °C; battery -10 to 65 °C |
| Humidity | 5 to 95%, non-condensing | 5 to 95%, non-condensing |
| Maximum altitude | 4000 m (derating above 1000 m) | 4000 m (derating above 1000 m) |
The catalog page for the 4.2 kW model gives a PV input of 27 A / 6,200 W and an efficiency tied to a 48 VDC bus, while its battery is listed at 25.6 VDC. The catalog switching time reads "2026/10/20", which is not a time value. These items, and the 48 V low-voltage claim for the 4.2 kW model, are marked for written confirmation.
Design points from the catalog
- Inverter-charger with pure sine wave output and MPPT solar input
- Battery management with real-time monitoring; app-based remote view and settings are described in the catalog, subject to confirmation for each version
- Peak shaving and valley filling for tariff management, subject to confirmation
- Protection against overcharge, overcurrent and over-temperature; flame-retardant structure
Certification marks
The catalog shows CE and UN 38.3 marks on the home energy storage pages. Certificate copies are available on request. Other certifications for this system: Pending.