EASYWAY UNIV-HV ST46K 46.08 kWh high-voltage LiFePO4 battery

The EASYWAY UNIV-HV ST46K is the smallest of the three ST models: 46.08 kWh total (43.32 kWh usable) capacity, 6 modules of 7.68 kWh and one control unit (BMS), with a nominal voltage of 460.8 V DC. You can start with 4 modules and add the rest later, so it suits sites with a steady daytime load: shops, small workshops and warehouses with refrigeration. At an evening load of around 1 kW it lasts about 46 hours, and it connects to a hybrid inverter with a matching voltage range (403.2–518.4 V DC).

Technical specifications

How the ST46K differs from the ST54K and ST61K

Choose the ST46K when the load is steady and moderate (a shop, a workshop, a warehouse with refrigeration) or when you want to start with 4 modules and expand later. If you need a bigger tower, look at the EASYWAY UNIV-HV ST54K: at a 10 kW load it lasts about 5 hours; the EASYWAY UNIV-HV ST61K is for the heaviest loads.

What is a 46 kWh high-voltage battery good for in a business?

The ST46K is aimed at business sites with a steady daytime load: shops, small workshops and warehouses with refrigeration. You can start with 4 modules and add the rest later.

Which inverters work with a high-voltage battery?

The ST46K connects to a hybrid inverter whose voltage range matches the battery, because high-voltage and low-voltage systems are not compatible with each other. The manufacturer’s compatibility list includes Solis, Deye, Pylontech, Growatt, GoodWe, Sofar, Victron, Solinteg and others, confirmed for the whole product line. If your inverter is another brand, we check compatibility before you order. The link to the inverter is CAN / RS485.

How long does a 46.08 kWh battery last?

At a 5 kW load the 43.32 kWh of usable capacity lasts about 9 hours, and at 8 kW about 5 hours. At a typical evening load of around 1 kW, the 46.08 kWh lasts about 46 hours; switching on an electric hob or a washing machine shortens that accordingly.

Home battery for solar panels: why store the surplus?

A solar PV system produces while you consume, and the battery moves the remainder into the evening and night. ESO (Lithuanian grid operator) states:

“Part of the surplus electricity generated can be stored in an energy storage device and used in the evening.”

ESO — Energy storage devices

Backup power, installation and what to know before buying

• Backup power: the system works during a power cut if the inverter has a backup output and an automatic changeover; the inverter performs the switching.
• Where to install: the enclosure is rated IP65, but the manufacturer specifies indoor installation (5–95 % relative humidity, non-condensing). Cooling is natural.

We handle it for you. We select the equipment for your site, deliver anywhere in Lithuania, install and connect it. The consultation before purchase is free.

Frequently asked questions

How many kWh does the EASYWAY UNIV-HV ST46K have?

The EASYWAY UNIV-HV ST46K has 46.08 kWh of total and 43.32 kWh of usable capacity. One tower consists of 6 modules of 7.68 kWh and one control unit.

How long will the ST46K last in a power cut?

At a 5 kW load the EASYWAY UNIV-HV ST46K lasts about 9 hours, at 8 kW about 5 hours, and at an evening load of around 1 kW about 46 hours.

Which inverters is the ST46K compatible with?

The manufacturer’s list includes Solis, Deye, Pylontech, Growatt, GoodWe, Sofar, Victron, Solinteg and others, confirmed for the whole EASYWAY UNIV-HV line. Hybrid Energy checks inverters of other brands before you order.

Can the ST46K be used with a low-voltage inverter?

No. The ST46K is a high-voltage battery (nominal voltage 460.8 V DC), and high-voltage and low-voltage systems are not compatible with each other. It needs a hybrid inverter with a matching voltage range (403.2–518.4 V DC).

Does the ST46K work during a power cut?

Yes, if the inverter has a backup output and an automatic changeover. The battery stores the energy and the inverter does the switching.

How many cycles and how many years of warranty does the ST46K have?

The manufacturer states 6000 cycles to 80 % remaining capacity and a 10-year warranty for the ST46K. The warranty is valid when the battery is connected to the internet.

Can the ST46K be installed in an unheated garage?

It is not recommended: the manufacturer specifies indoor installation, and without heating charging is possible only from 0 °C. An unheated garage needs the version with built-in heating.

Is the ST46K safe?

The ST46K has a built-in aerosol fire suppression system and protection against overvoltage, overcurrent, short circuit and overheating. Its certificates are CE, IEC 62619, UN38.3 and UL 1973 for the cells.

Can I start with less capacity?

Yes, you can start a tower with 4 modules of 7.68 kWh and add the rest later, up to 6. Several towers connect in parallel, and the inverter limits the total size.

Who installs and connects the ST46K?

Hybrid Energy sizes the capacity to your evening consumption, delivers anywhere in Lithuania, installs the ST46K and connects it to the inverter.

Sources

• ESO — Elektros energijos kaupikliai (quote on storing surplus electricity), checked 2026-10-26