EASYWAY UNIV-HV ST38K 38.4 kWh High-Voltage Home Battery
€7,099.00
EASYWAY UNIV-HV ST38K is a 38.4 kWh high-voltage LiFePO4 battery with 36.1 kWh usable capacity, rated for 6000 cycles and IP65.
- Free delivery across Lithuania
- 14-day returns — we pay for the return shipping
- Manufacturer warranty, CE compliant
The EASYWAY UNIV-HV ST38K is a modular high-voltage LiFePO4 battery with 38.4 kWh total and 36.1 kWh usable capacity, at a nominal 384.0 V DC. It is built from 5 × 7.68 kWh modules plus a BMS, has an IP65 rating, and the manufacturer declares 6000 cycles to 80 % remaining capacity. It is intended for a farm, a workshop or a small business.
Technical specifications
| Parameter | Value |
|---|---|
| Model | ST38K |
| Manufacturer code | VBS91285 |
| Battery type | LiFePO4 (LFP) |
| Total capacity | 38.4 kWh |
| Usable capacity | 36.1 kWh |
| Modules | 5 × 7.68 kWh + BMS |
| Nominal voltage | 384.0 V DC |
| Voltage range | 336–432 V DC |
| Recommended charge / discharge current | 50 A / 50 A |
| Recommended depth of discharge (DoD) | 90 % |
| Cycle life | 6000 cycles to 80 % remaining capacity |
| Communication | CAN / RS485 |
| Control | app + Wi-Fi |
| Ingress protection | IP65 |
| Mounting | floor-standing, modular |
| Cooling | natural convection |
| Fire safety | built-in aerosol fire suppression |
| Protections | overvoltage, overcurrent, short circuit and overheating |
| Certifications | CE, IEC 62619, UN38.3, cells UL 1973 |
| Warranty | 10 years (when connected to the internet) |
| Installation location | indoors: 5–95 % relative humidity, non-condensing |
| Charging without built-in heating | only from 0 °C |
Battery storage for a farm or business: who is a 38.4 kWh battery for?
- A farm with milking equipment and milk cooling
- A workshop
- A small business that needs to cover short power peaks
High-voltage battery: which inverters is it compatible with?
The EASYWAY UNIV-HV ST38K is a high-voltage battery, so it connects to a high-voltage hybrid inverter. The manufacturer’s compatibility list names Solis, Deye, Pylontech, Growatt, GoodWe, Sofar, Victron, Solinteg and others, and compatibility is confirmed for the whole product line.
High-voltage and low-voltage systems are not compatible with each other, and each manufacturer has its own list of approved pairings. If your inverter is another brand, we check before you order.
How many hours does a 38.4 kWh battery last with solar panels?
At a 5 kW load, the 36.1 kWh of usable capacity lasts about 7 hours; at 3 kW, about 12 hours. On a farm with milking equipment and milk cooling the load is steady, but before choosing it is worth adding up the real power of your appliances.
The battery can also be used to reduce power peaks; the actual effect has to be calculated from hourly consumption data.
How do you connect a battery to a solar system?
The battery connects to a hybrid inverter and stores surplus solar energy so you can use it in the evening. ESO (Lithuanian grid operator) states:
“Part of the surplus electricity generated can be stored in an energy storage device and used in the evening.”
We handle it for you. We select the equipment for your site, deliver anywhere in Lithuania, install and connect it.
What to know before you buy
- Where to place it: the enclosure is rated IP65, but the manufacturer specifies indoor installation (5–95 % relative humidity, no condensation).
- Winter: without built-in heating, charging is possible only from 0 °C.
- Warranty: the 10-year warranty applies when the battery is connected to the internet.
- Safety and protection: built-in aerosol fire suppression, plus protection against overvoltage, overcurrent, short circuit and overheating.
Frequently asked questions
How long does 38.4 kWh last?
At a 5 kW load, the 36.1 kWh of usable capacity lasts about 7 hours; at 3 kW, about 12 hours. Powerful appliances shorten that.
Is the ST38K right for a farm or business?
The ST38K is intended for farms, workshops and small businesses: at a 3 kW load, 36.1 kWh lasts about 12 hours. Hybrid Energy helps you work out whether this capacity will cover your site.
Which inverters is the EASYWAY UNIV-HV ST38K compatible with?
The manufacturer’s compatibility list names Solis, Deye, Pylontech, Growatt, GoodWe, Sofar, Victron, Solinteg and others. Hybrid Energy checks compatibility with your inverter before you order.
Is the ST38K a high-voltage battery?
Yes. The EASYWAY UNIV-HV ST38K has a nominal voltage of 384.0 V DC and a voltage range of 336–432 V DC. High-voltage and low-voltage systems are not compatible with each other.
What is the usable capacity of the ST38K?
Total capacity is 38.4 kWh and usable capacity is 36.1 kWh, with a recommended depth of discharge of 90 %.
How many cycles and what warranty?
The manufacturer declares 6000 cycles to 80 % remaining capacity and a 10-year warranty, which applies when the battery is connected to the internet.
Can the ST38K be installed outdoors?
The enclosure is rated IP65, but the manufacturer specifies installation indoors, where relative humidity is 5–95 % and there is no condensation.
Can the battery be charged in winter?
Without built-in heating, charging is possible only from 0 °C. We choose the location with this in mind.
What is the ST38K made of?
The EASYWAY UNIV-HV ST38K is a modular system of 5 × 7.68 kWh + BMS, made up of 7.68 kWh modules and a control unit.
What protections does the ST38K have?
The battery has protection against overvoltage, overcurrent, short circuit and overheating, plus a built-in aerosol fire suppression system.
Sources
- ESO — Energy storage systems, checked 2026-10-26
| Brand | EASYWAY |
|---|
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