Hoymiles has announced the official launch of its new HiBattery 4020 series, the third-generation of its plug-in home battery system. The series features the company’s first hybrid HiBattery 4020 X model, which is directly connected to PV modules, and the AC-coupled HiBattery 4020 AC model, which is paired with an existing home solar system to add a storage function. Equipped with higher battery capacity and adopting advanced protection mechanisms and a self-developed AI algorithm, both models are designed to make residential energy storage safer and smarter, enabling homeowners to save more on energy costs.
Compared with previous plug-in batteries, the HiBattery 4020 series delivers greater capacity and scalability to boost home energy storage, with both models featuring a 4kWh battery capacity, expandable up to 16kWh with extra modular battery stacks. They also come with a built-in 2500W inverter for efficient power conversion, with a maximum DC/AC efficiency of 96.5% for high energy utilization. The HiBattery 4020 X is built with 4 MPPT inputs, with up to 4kW PV input for optimized solar harvesting.
One of the core technologies in the series is Hoymiles’ AI Energy Management System (AI-EMS), which is built on its self-developed AI model, trained with over 30 million parameters.
Unlike traditional systems that rely on fixed daily schedules, HiBattery 4020 dynamically recalculates energy strategies every three hours based on electricity prices, weather forecasts and household consumption patterns, key capabilities including AI-TOU optimization and an Energy Ledger – a simple visual dashboard that tracks energy usage, savings and system performance in real time.
Safety is the foundation of the HiBattery 4020 series. Built with automotive-grade LiFePO4 battery cells, the system integrates 48-layer BMS protection, intelligent cell balancing and multiple hardware-level safeguards, including a built-in aerosol fire suppression system, pressure relief and PV input overheat protection, intelligent self-heating that responds to charging conditions and solar surplus, IP66-rated dust and water resistance and Pack-level DC/DC balancing that enables seamless compatibility between new and existing battery modules.
Hoymiles CEO Dr Yang Bo commented: “Home energy storage must be fundamentally safe before it can be truly accessible. HiBattery is designed to provide peace of mind in every scenario—from daily use to unexpected emergencies.”
The HiBattery 4020 series will be available for purchase across Europe starting from June.
