Name: 4.2K MPPT Solar Inverter 24V 220V Pure Sine Wave Off Grid Hybrid Inverter 120A-Easunpower
Brand: EASUN POWER TECHNOLOGY CORP LIMITED
SKU: ISolar-SMH-III-4.2K-Wifi
Price: 220.0 EUR
Availability: InStock

4.2K MPPT Solar Inverter 24V 220V Pure Sine Wave Off Grid Hybrid Inverter 120A-Easunpower

€220,00 - €220,00

€220,00

€220,00 - €220,00

€220,00

⚡ EU Warehouse 🚛 Free Shipping 🏷️ Duty-Free & 0% VAT

✅More Power, Less Effort – The Compact All-in-One Energy System for Your Home

All-in-One Design – Combines inverter, solar charger, and AC charger in one compact unit — saving space and installation effort
Lithium Battery Communication – Compatible with PYLON and PACE batteries; supports auto-detection and activation for smooth operation
Smart Switching – Automatically switches between solar, battery, or grid priority based on energy demand
Dual Output Function – Keeps critical loads powered even when battery charge is low, for greater safety and reliability
Clear LCD Display – Shows battery voltage, SOC, temperature, and more in real time
Comprehensive Protection – Protects against over/under-voltage, overheating, overload, and more
Remote Monitoring Ready – RS232, RS485, and WiFi support for convenient remote data access and system control

Quantity

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Free standard shipping on all orders
3-7 business days delivery

🛡️3 Years Warranty

Backed up by technical support within 24hrs.

🔄Free Returns

30 Days Hassle Free Returns.

User Manual

SMH-II-4.2KW

All-in-One Solar Inverter & Battery Charger with WiFi and RS485

Featuring an all-in-one design, 4.2kW rated power (up to 6.2kW peak), an easy-to-read LCD display, WiFi app monitoring, and an RS485 interface, the EASUN POWER 48V hybrid inverter with built-in battery charger delivers efficient, smart, and stable energy management for everyday home use.

Smarter Integration, Stronger Performance

The EASUN POWER all-in-one hybrid inverter & battery charger combines a 120A MPPT solar charge controller and a 4.2kW pure sine wave inverter in a single compact unit. This minimizes wiring while maximizing functionality, making it ideal for building streamlined and efficient PV and home energy storage systems.

Compact All-in-One Design – Saves Up to 50% Space

Say goodbye to cable clutter and scattered components! The EASUN POWER solar inverter & battery charger combines an MPPT controller, inverter, and charger in a single compact unit — saving installation space, simplifying wiring, and making your home energy storage system cleaner, safer, and easier to manage.

All System Data at a Glance in Real Time

Stay in control with the integrated LCD display and RS485 communication. Monitor system data, receive alerts, and track input/output performance — all in real time. With clear visibility of all key metrics, you can optimize energy usage and maintain battery health effortlessly.

Convenient Monitoring with the SmartESS App

View battery and system data in real time directly in the SmartESS app. Simply search for “SmartESS” in the Apple App Store or Google Play, or scan the QR code in the manual to download the app for free.

Easily monitor and control your inverter’s performance anytime via smartphone or tablet.

Flexible Charging and Output Options

Choose from three charging modes and four output priority settings to match your specific energy needs.

Perfect for dynamic home storage setups and uninterrupted power supply — easy to customize, optimize, and operate reliably.

Build Your Solar System with the EASUN POWER 4.2kW Hybrid Inverter

The EASUN POWER 48V 4.2kW hybrid inverter combines PV input, grid power, and battery charging in a single unit. This ensures seamless charging, stable output power, and reliable backup supply — ideal for quickly building a complete, professional home energy storage system.

Frequently asked questions

Our dedicated team of engineers and inverter specialists is available by phone to answer your questions and make the switch to advanced inverters as simple as possible.

We’re happy to help you understand how our inverters work and how to integrate them seamlessly into your solar power system—tailored to your specific needs.

❓ Can’t find the answer you’re looking for in our FAQs?
💬 WhatsApp: +86 185 8820 5592
📧 Email: sales@easunpower.com

1. How do I configure BMS communication with lithium batteries?

EASUN SMH III 4.2KW supports RS485 communication with a variety of BMS systems such as Pylontech, JK, Jikong, and Daly.
Pylontech BMS: Select battery type “Li2” in the inverter menu and set BMS to “PylonRS485”.
Daly BMS: Some users report success using “Li4” and setting Daly BMS to "Growatt" protocol.
JK BMS: It is recommended to use “Li2” and ensure correct wiring.
Note: Wiring methods may vary depending on the BMS brand. Please refer to the connection diagrams or consult technical support.

2. How do I know If this inverter is compatible with my solar panels ?

According to the inverter's specification table, the max solar input current is 18A, which means MPPT can handle a maximum of 18A.
The optimal voltage range for the MPPT is 380–430V, and it should not exceed 450V.

Based on this information, when you review the specifications of your solar panels, you should ensure that—whether connected in series or parallel—the total voltage or current connected to each MPPT input does not exceed these limits.

3. What is the minimum PV voltage required to start the inverter?

The MPPT controller requires at least 120VDC PV input to start, but a recommended input of 250VDC or higher is suggested to ensure stable power output under load.

4. How can I fix the issue of the LCD screen flickering?

Some users have reported flickering on the inverter's display.
A common solution is to connect an X2-class capacitor in parallel between PV+ and PV- to stabilize voltage fluctuations.
⚠️ This operation requires electrical knowledge. Please consult a professional.

5. Does the inverter support parallel operation?

No,this inverter can not work in parallel .

6. How does the WiFi monitoring work?

The inverter has a built-in WiFi module and can be monitored via a mobile app.
Download the recommended monitoring app and follow the instructions in the user manual.
Note: Data updates from the WiFi module may occur at 5-minute intervals.

7. Can the inverter run without a battery?

Yes, EASUN SMH III 4.2KW supports batteryless operation.
In this mode, the inverter uses PV input directly to power loads. However, it is recommended to carefully evaluate power stability and load demands when designing your system.