Growatt 3.8-6kW Partial Home Backup Power System

Growatt Partial Home Backup Power System

A hybrid inverter, a high-voltage battery and an automatic transfer switch, supplied as one matched system. It stores solar or off-peak grid energy and carries your essential circuits through an outage, then returns to normal when the grid comes back. Pick the inverter that suits your service and your loads.

What's included:

• A Growatt MIN hybrid inverter — the MIN 3800TL-XH-US (3.8 kW) or the MIN 6000TL-XH-US (6 kW), depending on the option you choose
• Growatt APX high-voltage LFP battery — 5 kWh, or 10 kWh on the double-battery option
• Growatt ATS-XH-US 11.4 kW backup box, with a built-in split-phase transformer for 120/240 V output
• Growatt smart meter

Solar panels are not included. This is a storage and backup system, not a solar kit. It works with an array you already have, or panels can be bought separately and sized to whichever inverter you choose — ask us and we will work out how many you need.

Which inverter:

• MIN 3800TL-XH-US — 3.8 kW. 7.6 kW of PV across 2 MPP trackers, 16 A maximum output, up to 98% peak efficiency. The sensible choice for a smaller service or a modest essentials panel.
• MIN 6000TL-XH-US — 6 kW. 12 kW of PV across 3 MPP trackers, 25 A maximum output, up to 98.4% maximum efficiency. Choose this if you have a larger array in mind, or heavier backed-up loads.

System key features:

• Outage cover: switches to backup automatically and supports dark start.
• Self-consumption: store energy when it is cheap or plentiful, use it at peak.
• Flexible modes: self-consumption, zero export, time-of-use and off-grid.
• Battery ready: both DC and AC coupled systems.
• Safety: rapid shutdown and AFCI integrated; UL1741SA, CA Rule 21 and HECO compliant.
• Monitoring: built-in WiFi, with real-time data through the app or web portal.

Growatt APX High Voltage Battery:

• 5 kWh per module, 4.5 kWh usable — expandable
• Cobalt-free lithium iron phosphate (LFP)
• Wall or floor installation
• IP66 rated for outdoor use
• Smart BMS with natural cooling
• 10-year warranty

Growatt ATS-XH-US 11.4 kW Backup Box:

• Partial home load backup
• Built-in split-phase transformer for 120 V / 240 V output
• Seamless operation during power outages
• 10-year warranty

Warranty: 10 years on the inverter, the battery and the backup box.