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BYD Battery-Box Premium HVS 7.7 kWh

Name: BYD Battery-Box Premium HVS 7.7 kWh
Brand: BYD
SKU: BYD-HVS-7.7-BSET
Price: 1295949.00 HUF
Availability: InStock

Vendor: BYD

Type: Battery

SKU: BYD-HVS-7.7-BSET

1.295.949 Ft ~~1.322.397 Ft~~

Tax included.

Available in stock

Warranty:

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Payment and delivery

Payment
You can pay for your order by bank transfer, in HUF or EUR. We will send you a payment request via email, which includes the necessary data for the transfer. If you would like a unique payment method (for example, cash or cash on delivery), select the “Unique payment plan” option and our colleagues will contact you to discuss the details.

Transport
The shipping fee depends on the size and type of the ordered product. For smaller packages, the home delivery fee is 3,790 HUF, for larger products it is 6,490 HUF. For solar panels, batteries and other large products, the delivery is based on an individual price quote, which our staff will always discuss with you after placing the order.

Product description

BYD Battery-Box Premium HVS is a high-voltage, modular energy storage system developed for residential and small commercial solar PV systems. The system uses BYD's proprietary cobalt-free lithium iron phosphate (LFP) cells, which provide superior safety and long cycle life.

Available versions:

BYD Battery-Box Premium HVS 5.1 – 5.12 kWh
BYD Battery-Box Premium HVS 7.7 – 7.68 kWh
BYD Battery-Box Premium HVS 10.2 – 10.24 kWh
BYD Battery-Box Premium HVS 12.8 – 12.80 kWh

Each HVS system consists of 2-5 modules, which are connected in series to form a high-voltage architecture. The modules are connected to each other using an internal, cable-free plug-in system, which simplifies installation and minimizes the possibility of errors. The entire system can be expanded up to 38.4 kWh capacity by connecting three identical units in parallel.

One of the main advantages of the HVS series is the true high voltage (HV) series connection, which results in high energy transfer efficiency (≥96%). The built-in BMS continuously monitors the status of all cells – voltage, temperature, current – and performs automatic cell balancing.

BYD's patented modular design allows for future expansion without having to replace the entire system. The IP55 housing is suitable for both indoor and outdoor installation, and the operating range from -10°C to +50°C ensures stable performance.

Available capacities: 5.1 / 7.7 / 10.2 / 12.8 kWh
High voltage (HV) architecture that can be built from 2–5 modules
Cable-free plug-in connection, quick installation
LFP cells – cobalt-free, safe, long life
Expandability up to 38.4 kWh (by connecting 3 units in parallel)
≥96% efficiency thanks to series system connection
BMS with cell-level monitoring and automatic balancing
IP55 protection, for indoor and outdoor installation
Compatible with leading inverter manufacturers (e.g. Fronius, GoodWe, SMA, Sungrow)
6000+ charge cycles, 10 year warranty
Certificates: VDE 2510-50, IEC62619, CE, UN38.3

The BYD Battery-Box Premium HVS series is a reliable, high-voltage solution that offers high efficiency, modular expandability and exceptional safety. It is the ideal choice for both self-consumption enhancement and stand-alone or backup power applications.

BYD Battery-Box Premium HVS 7.7 kWh

1.295.949 Ft ~~1.322.397 Ft~~

Névleges kapacitás (kWh)	7.68 kWh
Hasznosítható energia	7.68 kWh
Csúcsteljesítmény	7.68
Max. töltőáram	25 A
Max. kisütési áram	25 A
Névleges feszültség	307.2 V
Működési feszültségtartomány	240–360V
IP védelem	IP55
Működési hőmérséklet	-10°C ~ +50°C
Méret	995×585×298mm
Tömeg	129 kg
Garancia	10 év

Do you have a question?

View the most frequently asked questions or contact us.

How do I choose the right battery?

The most important thing is that the battery fits your inverter and the performance of your system. It is worth considering how much capacity (kWh) you need and whether you want to expand the system later.

Always check the inverter's technical data sheet, as it will tell you which batteries it is compatible with. For example, Huawei inverters only work with Huawei batteries, while Deye inverters can be connected to multiple manufacturers, offering a more flexible solution.

How do inverter types differ?

The lifespan of modern lithium batteries is usually 10–15 years, depending on usage and temperature conditions.

Manufacturers typically give an expected lifespan of 6,000–8,000 charging cycles – this can mean up to a decade and a half, assuming one cycle per day.

What happens in the event of a power outage?

If the inverter supports backup (stand-alone) operation, it will automatically switch to the battery during a power outage, so the most important consumers continue to operate.

It is important to know that if there is no backup function, the system will completely stop in the event of a power outage, even if the solar panels are producing. This is because most on-grid inverters cannot operate without mains voltage for safety reasons, so they cannot supply power or charge batteries.

What warranty does the battery have?

Depending on the manufacturer, batteries come with a 5 or 10 year warranty, and for some models this is also tied to the number of cycles. We indicate the exact warranty period on each product page, so you can always see how long the manufacturer's warranty lasts before you buy.

What happens if the battery fails?

If the battery is not working properly, it is a good idea to first have the problem diagnosed by a professional to rule out incorrect setup or installation. It is possible that the problem is not with the battery itself, but with a non-activated function or communication setting.

If it is proven that there is indeed a problem with the product, you should contact the manufacturer's or distributor's customer service, who will assist you in the troubleshooting process and the warranty administration process.