Tigo High Voltage Battery Bundle | Tigo EI 11.4kW Inverter | 200A Automatic Transfer Switch | 10kWh or More Energy Storage

Tigo EI Whole-Home Solar + Storage Bundle (11.4 kW EI Inverter + 200A ATS + EI Battery)

Tigo high voltage battery bundle combines the Tigo EI 11.4kW hybrid inverter, a 200A Automatic Transfer Switch, and a 9.0kWh usable LFP battery into one coordinated system. Ideal for new installations and retrofits seeking reliable whole-home backup power.

• Automatic Grid Backup
• Scalable to 39.6kWh
• 10-Minute Setup using the Tigo EI App

About the Product

Every component of the battery bundle—the 11.4kW hybrid inverter, the 200A Automatic Transfer Switch, and the EI Battery—is engineered to operate as one coordinated Energy Intelligence (EI) ecosystem, simplifying installation, monitoring, and long-term support.

When the grid goes down, the 200A ATS automatically transfers supported home loads to battery power. No generator input is required. Also, because all components share the Tigo EI platform, you get intelligent energy modes, such as self-consumption, load shifting, and time-of-use (TOU) rate optimization. This setup actively reduces grid dependence every day, not just during outages.

The Tigo EI Battery uses lithium iron phosphate (LFP) chemistry, rated for 6,000+ cycles with 9.9kWh total capacity and 9.0kWh usable per battery. You can start with one module and expand to four per inverter, reaching 39.6kWh of total solar battery storage without replacing any existing hardware.

The inverter supports up to 200% DC oversizing, up to four independent MPPTs, and Wi-Fi connectivity. Also, it has a built-in revenue-grade meter and features a NEMA 4X weatherproof enclosure—everything required for a clean, code-compliant residential installation.

What’s Included in Tigo High Voltage Battery Bundle?

There are three components included in the battery bundle, designed to work together as one complete, integrated solar-plus-storage system:

1. Tigo EI 11.4kW Hybrid Inverter (TSI-11.4K-US) - Supports up to 22.8kW PV input, 4 independent MPPTs, built-in Wi-Fi, revenue-grade metering, and NEMA 4X enclosure
2. Tigo 200A Automatic Transfer Switch (ATS) - Seamlessly transfers supported home loads to battery backup during grid outages; utility-to-battery switching only, no generator input required
3. Tigo EI Battery TSB-10-US - 9.9kWh total (9.0kWh usable) LFP storage module; expandable to 39.6kWh with up to 4 units per inverter; IP56/NEMA 4 rated for indoor and outdoor installation

Specifications

Download inverter specifications here.

Download ATS specifications here.

Download battery specifications here.