Hoymiles HiBattery 4020 AC – AC coupled home storage

The Hoymiles HiBattery 4020 AC Home Storage This battery adds 4,02 kWh of LFP storage capacity to suitable new or existing PV systems. As an AC-coupled storage system, it captures excess solar energy and makes it available later in the home with a charging and discharging capacity of up to 2.000 W. IP66 protection, automatic battery heating, and an operating range of -20 °C to 55 °C allow for flexible installation locations, while S-Miles Home enables monitoring via Bluetooth and Wi-Fi. This makes the battery particularly suitable for retrofitting professionally planned home energy systems with an appropriate metering concept.

Delivery

-- 1 × Hoymiles HiBattery 4020 AC

-- 1 × AC connection accessories as per manufacturer's package

-- 1 × Assembly and safety documents

Produktvorteile

-- 4,02 kWh LFP storage: Stores excess PV energy for later use in the household.

-- 2.000 W charging and discharging power: Supports rapid energy absorption and release.

-- AC-coupled concept: Suitable for retrofitting many professionally planned PV systems.

-- IP66 and heating: Designed for suitable outdoor locations and operation at low temperatures.

-- Quiet operation: With a specified noise level of less than 20 dB.

Compatibility

This AC-coupled storage system can be combined with many PV systems, provided the house electrical system, metering system, protective devices, and communication requirements comply with the manufacturer's specifications. However, it is not universally plug-and-play compatible with every inverter or smart meter. The specific metering and control concept must be defined before installation.

Technical information

-- Storage capacity: 4.020 Wh

-- Cell chemistry: LiFePO4

-- Charging/discharging power: 2.000 W nominal

-- Cycle lifetime: at least 8.000 cycles down to 70% SOH

-- Protection class: IP66

-- Operating temperature: −20 °C to 55 °C

-- Communication: Bluetooth and 2,4 GHz Wi-Fi

-- Noise level: below 20 dB

Matching accessories and related products

• Hoymiles Hi-Battery
• Hoymiles New

-- Currently, there is no separately listed, explicitly approved expansion accessory linked in the Mini-Power-Shop for the HiBattery 4020 AC. Required measuring and connection components must be selected based on the current Hoymiles system approval.

Why Mini Power

Mini Power explained at HiBattery 4020 AC the crucial role of AC coupling, measurement concept and electrical installation. This makes it easier to distinguish the product from DC storage devices and simple plug-in systems. We only list accessories as compatible if the assignment is verifiable; unconfirmed extensions are not recommended. For questions regarding integration into an existing system PV system supports Mini Power during the preliminary review of system data and preparation for the Electrical specialist company.

Frequently asked questions

-- Can the HiBattery 4020 AC be connected to any PV system?

Not a one-size-fits-all solution. AC coupling, measurement system, grid connection and protection concept must be compatible with the existing system.

-- Is the device suitable for outdoor use?

The IP66 protection rating allows for suitable outdoor installation, provided that the location and installation comply with the manufacturer's conditions.

-- Who is allowed to connect the storage unit electrically?

AC connection, protection and commissioning should be carried out by a qualified electrician.