The Felicity Solar IVEM4024-II is a 4kVA / 4000W low-voltage off-grid hybrid inverter designed for residential solar systems, shops, offices and backup-power installations.

It combines an inverter, MPPT solar charger and battery charger in one compact unit. The model supports a 24V battery system, pure sine wave output, high-voltage solar input up to 500V DC, and built-in Wi-Fi monitoring. Felicity also lists a feed-in function for making better use of excess solar energy.

⚡ Key Features

• ⚡ 4kVA / 4000W rated output
• 🔋 24V DC battery system
• 🌊 Pure sine wave output
• ☀️ Built-in MPPT solar charger
• 🔆 Maximum PV input voltage: 500V DC
• ☀️ Wide PV input range
• 🔋 Maximum solar charge current: 120A
• 🔌 Maximum AC charge current: 120A
• ⚡ Maximum total charge current: 120A
• 📶 Built-in Wi-Fi for mobile monitoring
• 🔄 Feed-in function for improved solar utilisation
• 📟 LCD configuration and monitoring
• 🔌 Supports generator input
• ⚙️ Generator input can be reconfigured as a smart output
• 🏠 Suitable for home, office and small-business solar systems
• 🌍 Suitable for off-grid and backup-power applications

☀️ High-Voltage Solar Input

The IVEM4024-II supports PV input up to 500V DC, allowing several solar panels to be connected in series.

This can help with:

• ☀️ Lower solar-side current
• 📉 Reduced cable losses
• 🔌 Longer panel strings
• 🏠 Cleaner rooftop wiring
• ⚡ Easier configuration of larger solar arrays

Felicity’s current product page lists a wide 60–500V DC PV input range, while the Estrex listing gives a 90–500V DC MPPT range. For actual system design, use the specification printed on the inverter or the exact Felicity datasheet supplied with the unit.

🔋 24V Battery Compatibility

The inverter is designed for a 24V battery bank and can be paired with compatible:

• 🔋 LiFePO₄ lithium batteries
• 🔋 Gel batteries
• 🔋 AGM batteries
• 🔋 Deep-cycle lead-acid batteries

Typical setups may include one compatible 24V lithium battery or two identical 12V batteries connected in series.

📶 Built-In Wi-Fi Monitoring

Built-in Wi-Fi allows real-time monitoring through Felicity’s supported monitoring platform.

Depending on configuration, users can monitor:

• ☀️ Solar generation
• 🔋 Battery status
• ⚡ Inverter output
• 🔌 Grid input
• 🔄 Charging and discharging
• 📊 Daily, monthly and yearly energy use

Felicity specifically lists its Fsolar intelligent monitoring platform for this model. 

✅ Benefits

• 4kW pure sine wave output
• High-voltage 500V solar input
• 24V battery architecture
• Strong 120A charging capability
• Built-in Wi-Fi monitoring
• Feed-in functionality
• Solar, battery and grid integration
• Compact wall-mounted design
• Suitable for lithium and conventional battery systems