BCU+Base for HV Lithium Battery BYD Battery Box Premium HVS+ / HVM+ - 16541149-00

BCU+Base for HV Lithium Battery BYD Battery Box Premium HVS+ / HVM+ - 16541149-00

BYD, a leading manufacturer of batteries and electric mobility solutions, is once again upgrading its high-voltage batteries. The new HV Lithium Batteries BYD Battery Box Premium HVS+ / HVM+ are the direct evolution of the successful HVS and HVM series. These new batteries offer higher capacity, more power and extended compatibility with the leading inverters on the market.

The BCU+Base for HV lithium battery BYD Battery Box Premium HVS+ / HVM+ is the essential component that gives life and structure to the new generations of high-voltage batteries from BYD. This unit combines the Battery Control Unit (BCU) and the mechanical and electrical connection base, forming the starting point of each HVS+ or HVM+ module tower.

Thanks to their modular design, the HV BYD Battery Box Premium HVS+ / HVM+ lithium batteries facilitate a fast, safe and scalable installation, ready to adapt to the needs of any residential or industrial PV system.

What is BCU+Base and why is it indispensable?

The BCU (Battery Control Unit) is the brain of the BYD Battery Box Premium battery. It is responsible for intelligent energy management, cell balancing, electrical protection and communication with the inverter.
The base provides the physical support structure and the high voltage electrical interconnections between modules.

Without this combination - BCU and base - the HVS+ or HVM+ module tower cannot function. Each battery tower requires a BCU+Base unit, on which the modules are stacked (2 to 6 in the case of HVS+, or 3 to 8 in HVM+).
This set forms the operational core of BYD's high-voltage batteries.

Main functions of the BCU+Base for BYD lithium batteries

Intelligent management and control

It monitors in real time the voltage, temperature and state of charge of each module, ensuring efficient and safe operation.

Safety and security

Includes internal protections against overload, deep discharge, short circuit and extreme temperatures. Complies with international standards IEC 62619 and UN38.3.

Advanced communication

The BCU integrates CAN and RS485 interfaces, allowing bi-directional communication with compatible inverters from brands such as Fronius, GoodWe, SMA, Kostal, Victron or Huawei.
This communication enables seamless integration in hybrid and self-consumption systems with storage.

Ease of installation

Thanks to the plug & play connection system, no internal wiring is required between modules, which makes installation easy. All power and signal connectors are integrated in the vertical stacking design.

Robust and modular structure

The base ensures mechanical stability, proper heat dissipation and correct alignment of the modules, guaranteeing performance even in industrial environments.

Compatibility between BYD battery systems

The BCU+Base+ is only compatible with the new generation BYD high-voltage battery series:

Battery Box Premium HVS+: Stackable from 2 to 5 modules (5.1 - 12.8 kWh usable).
Battery Box Premium HVM+ Stackable from 3 to 8 modules (8.3 - 32.8 usable kWh).

The new HVS+ / HVM+ modules are not compatible with the old ones. They cannot be mixed in the same tower, nor can new towers be placed in parallel with towers of modules from previous versions.

HVM+ batteries

HVS+ batteries

Compatibility with inverters

BYD batteries are compatible with a wide range of inverters from leading brands. The BCU integrates communication interfaces compatible with inverters from brands such as Fronius, GoodWe, SMA, Kostal, Victron and Huawei.

Updated list of inverters compatible with BYD Battery Box Premium HVS+ / HVM+ batteries Version V1.3, updated 17/10/25

Advantages of the new BCU+Base design for BYD Premium HVS+ / HVM+

More power and flexibility

Adapted to the HVS+ and HVM+ series, this version supports higher voltages and power ratings than the previous BCU. Ideal for installations with higher power demands.

Seamless integration with state-of-the-art inverters

Includes updated communication profiles for Fronius GEN24 Plus, GoodWe ET Plus+, SMA Sunny Boy Storage, Kostal Plenticore Plus, Victron Multiplus II and others.

Modular and expandable installation

It allows you to start with a small configuration of two modules and expand it in the future without changing the base unit, simply by adding more modules.

Minimal maintenance

No moving parts or fans. Passive cooling and IP sealing of the housing guarantee a long service life without regular maintenance.

Robust and safe design

Reinforced metal structure, fully insulated against accidental contact.
Suitable for indoor use, it can be installed in garages, attics or engine rooms, for example.

How to size a battery?

The first step is to define the purpose for which you want the battery. Are you looking to save energy and store it during the day for use at night? Do you need a backup system for emergencies such as power outages or prolonged blackouts? Do you want to gain autonomy and greater independence from the utility companies?

Once you are clear about your target, all you have to do is calculate the consumption you would make during the hours of battery use. This calculation is very easy if you are expanding your panel installation because you will be able to access your actual data through your inverter's app, such as the Fronius Solar.web. If you do not have this data, you can always consult your supplier. As a general rule, around 40% of the daily consumption is made when there is no sun.

You should also take into account the power that the battery and inverter combination can deliver, which should be able to cover your peak consumption.

With this information, you can now choose the battery that best suits your needs.

Example of a BYD Battery Box Premium HVS+ installation

A typical battery, the BYD Battery Box Premium HVS+ 5.12 kWh, includes:

1 × BCU+Base - 16541149-00
2 × HVS+ modules (2,56 kWh each)

With this configuration, the consumption of a single-family house can be fed with an average consumption of up to 5kWh during the night. How long the battery can last depends on the consumption and its charge level. The higher the charge percentage when using the battery and the lower the consumption, the longer it lasts.

Recommended installation of a high-voltage lithium battery

LocationIndoors dry, on a stable surface, away from sources of heat or humidity.
AssemblyThe BCU+Base is installed first, levelled and fixed if necessary. The modules are stacked vertically on it and snapped together using the integrated connectors.
Electrical connection: Power and communication cables are connected directly from the BCU to the inverter, with no additional wiring between modules.
Commissioning: This is done from the compatible inverter interface, which automatically detects the battery and configures the system according to the parameters of the BMS (Battery Management System).

What is the warranty on HV BYD Battery Box Premium HVS+ / HVM+ lithium batteries?

BYD offers a 10-year warranty, covering both the BCU and the battery modules, provided that the system has been installed according to official specifications and with approved inverters.

Technical specifications of the BCU+Base for HV Lithium Battery BYD Battery Box Premium HVS+ / HVM+ - 16541149-00

Buy BCU+Base for HV Lithium Battery BYD Battery Box Premium HVS+ / HVM+ - 16541149-00

At FVComponentes you can buy the new generation of BYD Battery Box Premium lithium batteries in 48V and high voltage versions. We offer lithium batteries for self-consumption or isolated installations of all powers at the best price and with the highest quality and manufacturer's warranty. For more information about these batteries, consult with us and we will help you with your photovoltaic project without obligation.

Datasheet BCU+Base for HV Lithium Battery BYD Battery Box Premium HVS+ / HVM+ - 16541149-00

Datasheet: BCU Lithium Battery HV BYD Battery Box Premium HVS+ /HVM+ (BCU+Base) - 16541149-00

Installation Manual for BCU+Base for HV Lithium Battery BYD Battery Box Premium HVS+ / HVM+ - 16541149-00

Installation Manual: BCU Lithium Battery HV BYD Battery Box Premium HVS+ /HVM+ (BCU+Base) - 16541149-00