Hoymiles HiBattery 4020 X Rated “Very Good” in the Test by COMPUTER BILD
The HiBattery 4020 X, Hoymiles’ new balcony solar system with storage, has received a “Very Good” (“Sehr Gut”) rating from leading German technology publication COMPUTER BILD following an extensive hands-on test of its capacity, energy management, dynamic zero-feed-in performance, setup, and backup power capabilities.
In the review, COMPUTER BILD highlighted the HiBattery 4020 X balcony solar storage for its fast and precise zero-feed-in control, four MPPT inputs, and straightforward setup. The publication concluded that the system offers a compelling overall package for balcony solar users seeking efficient home energy storage and intelligent energy management.
“Die Hoymiles HiBattery 4020 X überzeugt mit sehr schneller Nulleinspeisung, hoher nutzbarer Kapazität und unkomplizierter Einrichtung.” (The Hoymiles HiBattery 4020 X impresses with very fast zero-feed-in regulation, high usable capacity, and straightforward setup.)
——COMPUTER BILD
Fast and Precise Energy Control
One of the key strengths identified by COMPUTER BILD was the HiBattery 4020 X’s dynamic zero-feed-in performance. During practical testing with changing household loads, the solar battery responded quickly and precisely to fluctuations in electricity consumption.
At steady state, deviations were frequently below 50 W, placing the HiBattery among the better-performing systems (“besseren Speichern”) in the publication’s test array.
This strength is summarized as “very fast and precise zero-feed-in regulation” (“Sehr schnelle und präzise Nulleinspeisung”).
Easy Storage Expansion and Built for 4 Module Inputs
COMPUTER BILD specifically listed “Vier MPPT und bis 16 kWh erweiterbar” (“Four MPPTs and expandable to up to 16 kWh”) among the product’s key advantages.
The HiBattery 4020 X battery storage system combines battery storage, an inverter, and solar inputs in a single unit. Its 4.02 kWh capacity can be expanded to up to 16.08 kWh with additional battery modules.
Four independent MPPT inputs also provide flexibility for connecting solar panels with different orientations, helping households make better use of available rooftop or balcony solar generation throughout the day. This also makes HiBattery 4020 X a good fit for users who want to connect up to four PV module strings (or eight modules) in their balcony system.
Straightforward Setup and Reliable Connectivity
COMPUTER BILD also noted HiBattery 4020 X’s simple installation and reliable connectivity. In the test, the system was quickly brought into operation by connecting the solar modules and power cable before configuring the S-Miles Home app.
The publication noted that the illustrated instructions clearly guided users through the key setup steps, while connection with the Shelly Pro 3EM was completed without difficulty.
During testing, the S-Miles Home app also operated reliably, with COMPUTER BILD reporting no issues with Wi-Fi connectivity or unexpected connection interruptions.
Designed for Flexible Home Energy Management
Beyond its core storage function, the HiBattery 4020 X supports intelligent energy management (Hoymiles AI-EMS) that can take factors such as household consumption, weather forecasts, and dynamic electricity prices into account when determining suitable charging and discharging periods.
The system also supports MQTT, enabling integration with smart-home platforms such as Home Assistant and providing additional flexibility for advanced users.
With its flexible solar input, fast energy regulation, and smart energy management, the HiBattery 4020 X is designed to help households maximize self-consumption and make better use of their solar energy.
As one of Germany’s leading technology publications, COMPUTER BILD’s “Very Good” rating provides valuable recognition of the HiBattery 4020 X. The result embodies Hoymiles’ commitment to delivering reliable and user-friendly solar battery storage solutions that help households maximize self-consumption and make better use of renewable energy.
About HiBattery 4020 X—DC & AC-Coupled Battery
The HiBattery 4020 X is designed to support both new and existing solar installations. It can connect directly to PV modules or integrate with existing microinverter systems in an AC-coupled system, making it a flexible solar battery storage solution for both new installations and solar system upgrades.
The full COMPUTER BILD review is available here.
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