Deye Battery BOS-G pro BDU

Deye BOS-G BDU – control unit BDU (BMS + PDU)

Deye BOS-G Pro BDU is the control unit (master BMS + PDU) of the high-voltage system Deye BOS-G Pro, managing up to 16 5,12 battery modules kWh (max. ~82 kWh) in one stack.

BDU communicates with the HV hybrid inverter via CAN 2.0 / RS485, has a local SOC/SOH display, is mounted in the lower rack bay of the 3U-HRack-2G (3U high, standard 19-inch rack) and is a mandatory component - without BDU the system will not start.

Looking for other models from the same line? See the full range energy storage Deye w PVGroup.pl - distributor Deye B2B

Key parameters at a glance

Feature

Master Degrees BMS + PDU

Manages modules

up to 16 × 5,12 kWh

Max stack capacity

~ 82 kWh

Communication with the inverter

CAN 2.0 / RS485

Inverter compatibility

Deye SUN SG04LP3, Deye SUN HP3 (HV)

Assembly

19-inch 3U rack (HRack-2G)

display

local LCD SOC/SOH

Standards

IEC 62619, IEC 63056

The most important features Deye BOS-G BDU

• Master unit BMS + PDU (Power Distribution Unit) for the high-voltage system Deye BOS-G Pro
• Manages up to 16 battery modules 5,12 kWh each – max ~82 kWh for one group
• Features: cell balancing, overvoltage and thermal protection, DC distribution
• CAN 2.0 / RS485 communication with HV hybrid inverter (Deye SUN SG04LP3 / HP3)
• Local display with SOC, SOH and error code readings
• Mandatory component – ​​without BDU BOS-G Pro system will not start
• Mounting in the bottom bay of the 3U-HRack-2G rack – 19-inch rack rails

Ideal for

Mandatory BOS-G Pro HV system control unit - installers assembling high voltage storage systems 20-80 kWh for single-family homes and small C&I facilities.

What are the technical parameters Deye BOS-G BDU?

Installation and commissioning

Battery system element – ​​replacement and configuration by a service technician with SEP E qualifications up to 1 kV . Time: 1–2 hours.

Frequently asked questions about Deye BOS-G BDU

What is Deye BOS-G BDU and is it mandatory?

Module BMS to Battery Distribution Unit – control unit (BMS master + DC distribution) for high voltage system Deye BOS-G Pro. Without module BMS the hybrid inverter will not recognize the battery stack and the entire system will not start.

How many modules does one BDU manage?

Up to 16 BOS-G Pro 5,12 modules kWh in one stack – max ~82 kWh capacity managed by one unit.

With which inverters Deye cooperates?

With hybrid HV inverters Deye – typically a series SUN SG04LP3 (3-phase) and SUN HP3. Full list of compatible models in the BOS-G Pro datasheet.

What kind of rack do I need?

BDU Mounts in the bottom bay of the 3U-HRack-2G rack (9 or 13 layers) – the same rack that houses the BOS-G Pro battery modules. Standard 19″, 3U height.

Czy BDU can be interchanged between different battery systems Deye?

NO - BDU is dedicated to the BOS-G Pro HV line. Units from other systems Deye (SE-F*, AXE, APX) have different protocols and are not interchangeable.

Can I run the BOS-G Pro system without a BDU, with a makeshift one?

No. BDU to master BMS the entire stack – HV hybrid inverter Deye will not recognize modules without CAN communication with BDU and it will simply block the system from starting.

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Why Deye

Deye Inverter Technology is one of the largest global manufacturers of photovoltaic inverters and energy storage systems – a company founded in 1991 in Ningbo (China), with a global presence in over 100 countries. Deye regularly ranks among the top hybrid inverter suppliers in BloombergNEF and Wood Mackenzie rankings, with a particularly strong position in the residential and light commercial segments. SUN is today one of the most frequently chosen hybrid platforms on the European market.

Why choose Deye in Poland: a wide range of products covering the full power spectrum (from 1-phase 3.6 kW inverters to industrial 80 kW+), support for a wide range of batteries (Deye BOS-G, BYD, Pylontech, Dyness), Polish-language Solarman Smart / Solarman Cloud monitoring application and compliance of all models with the requirements of national Distribution System Operators and European standards. The products meet the standards International Electrotechnical Commission (IEC), which are a global benchmark for the safety of inverters and batteries.

Experience and credibility – PVGroup.pl

Experience: PVGroup.pl has been operating in the Polish photovoltaic market since 2019. We have completed hundreds of PV installations and energy storage facilities – from home micro-installations to farms and C&I projects.

Expertise: Our team consists of electrical engineers with current SEP certifications who select inverters, batteries, and energy storage systems to meet real customer needs every day. We offer technical advice, design, and calculation support for installers, including those with unique hybrid configurations.

Legal distribution and warranty: Products Deye w PVGroup.pl come from a legal distribution channel and are covered full manufacturer's warranty in PolandThis also applies Deye BOS-G BDUMore about the manufacturer: official page Deye.

Trust: We are a Polish company – we issue Polish VAT invoices, offer a European manufacturer's service warranty, secure payments, and transparent B2B terms. Our returns and complaints policy complies with Polish law. Full company details, including the Tax Identification Number (NIP), and contact information can be found on the About Us and Contact pages.

Support, Warranty and Compliance

• Legal distribution Deye in Poland – original products, European manufacturer's warranty, VAT invoice.
• manufacturer's warranty – Standard 5-year warranty on inverters, up to 10 years on selected batteries. Extensions available as separate SKUs.
• Compliance with PL requirements – devices compliant with EN 50549, NC RfG and PPDS OSD requirements.
• Technical Assistance – assistance with selection, configuration, and commissioning. Warranty and post-warranty service.
• B2B implementation – check availability on the product card or contact the sales representative.

Product description updated: April 2026. Technical data comes from the manufacturer's official catalog cards. Deye — Before ordering, we verify compatibility with the latest firmware.