The Felicity Solar IVEM12048-II is a powerful 12kW low-voltage off-grid hybrid inverter designed for large residential solar systems, offices, commercial premises and demanding backup-power installations.

It combines an inverter, MPPT solar charge controller and battery charger in one unit, with support for dual PV strings, Wi-Fi monitoring, generator input and parallel expansion. Felicity lists this model as a 48V, single-phase off-grid inverter, with three-phase operation possible when at least three compatible units are used together.

⚡ Key Features

• ⚡ 12kW rated output power
• 🔋 48V DC battery system
• ☀️ Built-in MPPT solar charge controller
• 🔆 Supports 2 independent solar PV strings
• ☀️ Up to 15,000W maximum PV input
• 🔆 Up to 7,500W per individual PV input
• 🔋 Maximum charging current of 240A
• 📶 Built-in Wi-Fi for mobile monitoring
• 🔌 Compatible with utility/grid or generator power
• ⚙️ Generator input can be configured as a smart output port
• ⏱️ Smart output duration can be customised
• 🔄 Automatic restart when AC power returns
• ❄️ Cold-start capability
• 🔋 Lithium battery activation function
• 🛡️ Overload protection
• 🌡️ Over-temperature protection
• ⚡ Short-circuit protection
• 🔗 Supports up to 6 units in parallel
• 🏠 Single-phase operation
• ⚡ Three-phase configuration supported with at least 3 units

☀️ High-Capacity Dual Solar Input

The IVEM12048-II supports up to 15kW of total solar PV input, making it particularly suitable for large solar arrays.

Its dual PV-input architecture allows up to:

• ☀️ 7.5kW on PV input 1
• ☀️ 7.5kW on PV input 2
• 🔆 15kW total maximum PV input

This gives installers greater flexibility when splitting solar panels across different strings or roof orientations.

🔋 Powerful 48V Battery Charging

With a maximum charge current of 240A, the IVEM12048-II is designed to work with substantial battery-storage systems.

Compatible battery types may include appropriately configured:

• 🔋 48V / 51.2V LiFePO₄ batteries
• 🔋 Lithium battery banks
• 🔋 Gel batteries
• 🔋 AGM batteries
• 🔋 Deep-cycle lead-acid banks

The inverter also features lithium battery activation, which is useful with compatible lithium batteries whose BMS may enter a low-power protection state.

📶 Built-In Wi-Fi Monitoring

Built-in Wi-Fi enables mobile monitoring through Felicity's supported application.

Depending on the setup, users can monitor information such as:

• ☀️ Solar generation
• 🔋 Battery state
• ⚡ Inverter output
• 🔌 Grid or generator input
• 🔄 Charging and discharging activity
• ⚠️ Fault and operating status

🔌 Generator & Smart Load Support

The inverter is compatible with both mains electricity and generator power.

A particularly useful feature is that the generator input port can be converted into a smart output port, allowing selected loads to be controlled separately. The smart output duration can also be customised.

🔗 Parallel Expansion

Up to 6 compatible IVEM units can be connected in parallel for larger systems.

This makes the platform suitable for installations that may need future expansion.

For three-phase installations, Felicity states that at least 3 units are required. 

🛡️ Built-In Protection

The IVEM12048-II includes several protection and recovery features:

• 🛡️ Overload protection
• 🌡️ Over-temperature protection
• ⚡ Short-circuit protection
• 🔄 Automatic restart after AC recovery
• ❄️ Cold-start function
• 🔋 Lithium battery activation

sized AC/DC cabling.