Hoymiles HiBattery 4020X Earns “Very Good” Rating from Connect

Hoymiles HiBattery 4020 X has received a “Very Good” rating in a recent hands-on review by Connect, a leading German technology publication. The recognition highlights the system’s flexibility, performance and intelligent energy management, demonstrating how the solar battery storage solution can help households make better use of solar energy while adapting to different energy needs.

In its conclusion, Connect described the HiBattery 4020 X as “a flexible and powerful storage battery.”

The review particularly highlighted the system’s versatility. With four integrated MPPT inputs, the HiBattery 4020 X can connect directly to PV modules, making it a flexible solar battery for balcony solar systems as well as larger residential PV applications. Its modular design also allows users to expand home battery storage capacity with stackable battery modules, from 4.02 kWh up to 16.08 kWh. Beyond direct PV connection for new installations, the HiBattery 4020 X also supports AC coupling and is seamlessly compatible with any inverter — a no-retrofit solution for existing solar systems.

According to Connect, the combination of stackable expansion batteries and different operating strategies in the S-Miles Home app allows the system to be “flexibly adapted to individual needs.”

Smarter Energy Management

Beyond hardware flexibility, Connect also praised the extensive energy management capabilities available through the S-Miles Home app. Users can monitor PV generation, household consumption, battery charging and discharging, and grid feed-in in real time. The home energy storage system supports self-consumption optimisation and dynamic electricity tariffs. In Time-of-Use mode, intelligent control can manage charging and discharging based on household energy behaviour and electricity price information, helping users make more effective use of both solar generation and changing electricity prices.

Taking intelligent energy management further, Hoymiles AI-EMS is designed for Europe’s 15-minute dynamic electricity pricing. By combining the latest weather forecasts with household energy usage data, AI-EMS recalculates its energy strategy every three hours — eight times a day — to continuously optimise charging and discharging decisions with greater accuracy.

The review also recognised the HiBattery 4020 X for its “easy commissioning” and its compact, well-designed housing with integrated carrying handles — practical features that make the battery storage system easier to integrate into everyday home energy use.

Designed for More Than Solar Storage

For greater energy flexibility, the HiBattery 4020 X features an off-grid outlet delivering up to 2,500 W, enabling users to power electrical appliances directly from the home battery. Its integrated battery heating also supports outdoor operation in low-temperature conditions, while an IP66-rated enclosure provides additional protection for outdoor installations.

For households looking to get more from Plug and Play Solar and residential PV, the HiBattery 4020 X brings together flexible solar integration, expandable storage and intelligent energy management in one system.

The “Very Good” rating from Connect is a recognition of Hoymiles’ continued efforts in residential energy storage. By combining modular solar battery storage, intelligent energy management and flexible PV integration, the HiBattery 4020 X gives European households greater flexibility in how they store, manage and use their solar energy.