BYD BATTERY-BOX PREMIUM QUICK START GUIDE

Introduction and Safety

This document is a Quick Start Guide providing shortened assistance for the installation of the BYD Battery-Box Premium HVS/HVM. It does not replace the Operating Manual, which must be read and understood completely before installation. Please download and view the Operating Manual at www.bydbatterybox.com.

Attention: High Voltage! Improper handling can pose a risk of electric shock and damage. ⚠️

This guide and its procedures are intended for use by skilled workers only. A skilled worker is defined as a trained and qualified electrician or installer with knowledge of:

• Functional principles and operation of on-grid systems.
• Dangers and risks associated with electrical devices and acceptable mitigation methods.
• Installation of electrical devices.
• Adherence to this guide, the complete installation manual, and all safety precautions.

For normal operation of the BYD Battery System, download the Be Connect 2.0 app and complete the configuration as described. If errors occur during commissioning or operation, consult the Service Guideline and Checklist. If the battery system does not start, contact BYD's local after-sales service team within 48 hours to prevent permanent damage. Do not stack batteries without protective packages during storage or handling, except for installation.

App Availability: Available on Google Play and App Store.

1. Scope of Delivery

The following components are included:

• 1x BCU (A)
• 1x Base (B)
• 3x M4x14 Countersunk Screw (J)
• 1x Female Power Cable Coupler (R)
• 1x Male Power Cable Coupler (S)
• 1x Terminal Resistor (T)
• 2x HVS Module (C1) or HVM Module (C2)
• 2x Hanger (BCU Part) (D)
• 1x Documents (E)
• 2x Hanger (Wall Part) (F)
• 4x M5 Screw (G)
• 2x M6 Bolt and Nut (H)
• 4x Communication Connector (I)
• 2x M4x14 Countersunk Screw (J)

2. Additionally Required Installation Materials

The following materials are required for installation:

• 1x DC Cable (6-10mm², double insulated) (K)
• 1x Expansion Anchor Bolt (M8x40) (L)
• 2x Cat5 Shield (Metal Shielded RJ45 of Cat5 or higher) (M)
• 1x PE-terminal (N)
• 1x PE* (10 mm²) (O)
• 1x Heat Shrink Tubing (P)

Note: If the maximum current of the connected inverter is no more than 40 A, a grounding cable with a cross-sectional area of 6 mm² is also acceptable.

3. Tools

The following tools are recommended for installation:

• Network Wire Clamp
• Marker
• Phillips Screwdriver Bit
• Flat-head Screwdriver
• Torque Wrench
• Wire Stripper
• Hydraulic Plier
• Wrench
• Tape Measure
• Drill
• Heat Gun
• Cylinder Screwdriver
• Connector Wrench
• Rubber Mallet
• Crimping Pliers

4. Installation Location

Ensure the installation location meets the following environmental conditions:

• Maximum Temperature: +50°C ?️
• Minimum Temperature: -10°C ❄️
• Relative Humidity: +5% to +95% ?

5. Connection Limitation

Observe the following limitations for connecting battery modules:

• Module Count per Tower:
• HVS: 2 to 5 modules (N) ✔️
• HVM: 3 to 8 modules (N) ✔️
• Parallel Connection:
• When connecting multiple towers in parallel, all towers must have the same number of modules (M = N).
• If connecting multiple towers (L, M, N), they must all have the same number of modules (L = M = N).
• Connecting towers with different module counts (L ≠ M or L ≠ N or M ≠ N) is not permitted ❌.
• The maximum number of parallel towers is 3 (≤ 3 Towers) ❌.

6. Installation

Follow these steps for installation:

1. Step 1: Attach the Base (B) to the BCU (A) using M4x14 Countersunk Screws (J) and a PH2 screwdriver.
2. Step 2: Mark the wall for mounting the Hanger (Wall Part) (F), ensuring a distance of 12-19 mm from the top edge.
3. Step 3: Stack the Battery Modules (C1 or C2). Note the weight of each module is approximately 38 kg.
4. Step 4: Mount the BCU (A) onto the Hanger (BCU Part) (D). Connect the Hanger (BCU Part) (D) to the BCU (A) using M5 Screws (G) with a torque of 5.5 Nm.
5. Step 5: Securely attach the stacked battery modules to the wall using the Hangers (Wall Part) (F) and M6 Bolts and Nuts (H), with a torque of 2 Nm for the PH2 screws.
6. Step 6: Connect the modules using the provided cables. Use a drill for securing components.
7. Step 7: Connect the communication cables (e.g., using Communication Connector (I)).
8. Step 8: Mount the Terminal Resistor (T) using the Hanger (Wall Part) (F) and M6 Bolts and Nuts (H), with a torque of 8 Nm for the 10 mm screws.
9. Step 9: The BCU unit is shown with its model information and certifications (CE, UKCA, Made in China).

BYD Battery-Box Premium Specifications

Manufacturer: Shenzhen BYD Electronics Co., Ltd.

Address: No.1, Yan'an Road, Kuichong Street, Dapeng New District, Shenzhen, 518119, P.R. China

Email: bboxservice@byd.com

Website: www.bydbatterybox.com

7. Connection Diagram

Single Tower

This diagram illustrates the connection for a single BYD Battery-Box tower to an inverter.

• Port 'a' (INV): Port for an inverter data cable.
• Port 'b' (IN): IN port for parallel tower connection.
• Port 'c' (OUT): OUT port for parallel tower connection.
• Port 'd' (ETH): Network port for connecting a router or network switch.
• Port 'e' (PE): Grounding cable connecting point.
• Port 'f' (P-): DC- to inverter.
• Port 'g' (P+): DC+ to inverter.

Connections shown include PE Cable, DC Cable (P-, P+), Data Cable, and Network Cable.

Multiple Towers

This diagram shows the connection for multiple BYD Battery-Box towers in parallel to an inverter.

NOTICE:

1. Parallel connection is not applicable to SMA Sunny Boy Storage 3.7-6.0. Please check the inverter's operating manual on how to connect up to three battery systems.
2. The length of the power cables from each tower to the combiner box should be the same.
3. The length of the power cable between each battery tower and the inverter should be less than 20 m.

8. Electrical Connections

NOTE: Before making all electrical connections, please ensure the air switch on the BCU is off.

8.1 PE Connection

Detailed steps for connecting the protective earth (PE) cable are shown, involving components labeled 'E' and 'P', and a terminal labeled 'SC10-5'. Ensure proper alignment of terminal parts.

8.2 DC Connection

Detailed steps for connecting the DC cables (P+ and P-) are shown. The DC cables should have an external diameter of 4-7 mm and a cross-section area of 6-10 mm². Ensure the correct cable cross-section by checking the inverter's operating manual.

NOTICE:

1. Any elastic piece of the terminal must be aligned with the thin-walled side of the plastic case opening before insertion.
2. After inserting, try pulling it out slightly to check if the terminal and the plastic case are securely connected.

8.3 Connecting the Data Cable to an Inverter

Two options (a and b) are shown for connecting the data cable (Min. CAT5, Max. 20m) to the inverter. Examples include CAN L, CAN H, and BMS connections.

NOTICE: The connection diagram with different inverters could be read in section 13.

8.4 Connecting the Data Cable to a Router

This connection is optional but recommended. A data cable (Min. CAT5, Max. 20m) is connected to a router using T568B wiring.

8.5 Installing the Terminal Resistor

Steps are shown for installing the terminal resistor into the appropriate port.

9. Configuration

The configuration process involves connecting to the battery's WiFi network using the Be Connect 2.0 app. Users will be prompted to review and agree to the privacy policy. The app guides users through selecting the inverter, setting the date/time, and configuring the battery modules. The battery WiFi will automatically shut off after five hours; press the LED button to reactivate.

Configuration Steps:

1. Connect to the battery's WiFi network (e.g., BYD-XXXX).
2. Open the Be Connect 2.0 app.
3. Review and agree to the Privacy Policy.
4. Follow the on-screen prompts to configure the system, including selecting the inverter model and the quantity of battery modules.

Note: When adding modules, ensure the State of Charge (SOC) of the existing tower is similar to the extension module (normally around 30%).

10. Switch ON/OFF Procedure

Switch ON: Follow steps 1, 2, and 3. The system may take 5 seconds to initialize.

Switch OFF: Follow steps 3, 4, and 1.

Battery WiFi: The battery WiFi will automatically shut off after five hours. Press the LED button once (around one second) or restart the system to activate it.

11. Extension

Note: Within 5 days before extension, it is recommended to fully charge the original system to SOC 100% at least once.

To extend the system, measure the voltage (X) of the new battery module. Refer to the table below to find the corresponding State of Charge (Y) for the new module. Charge or discharge the original battery system until its SOC is almost equal to Y, then add the new battery module. Perform the configuration after adding the module.

Voltage and SOC Matching Table

12. LED Status

The LED indicators on the battery system provide status information:

13. Communication Options with Inverters

This section details the communication connections between the BYD Battery-Box and various inverter models. Each entry specifies the pin assignments for both the Battery-Box and the inverter, along with the recommended cable length (≤ 20 m).

1. SMA SBS 2.5/ 3.7/ 5.0/ 6.0

NOTICE: Parallel connection is not applicable to SMA Sunny Boy Storage 3.7-6.0. Please check the inverter Operating Manual on how to connect up to three battery systems.

2. SMA STP 5.0-10.0 SE

3. SMA SBSE 3.6 / 4.0 / 5.0 / 6.0

4. Kostal Plenticore Plus (G2/G3)/ Plenticore BI (G2/G3)

5. Kostal Piko MP Plus

6. Kostal Piko BA

7. Kaco blueplanet hybrid 6.0-10.0 TL3

8. Kaco NH

9. SUNGROW SH5.0_6.0_8.0_10RT

10. SUNGROW SH3.0/ 3.6/ 4.0/ 5.0/ 6.0 RS

11. Fronius Symo Hybrid

12. Fronius Primo Gen24 Plus/ Symo Gen24 Plus

13. Ingeteam

14. Solis RHI-3P(5-10)K-HVES-5G

15. Solis S6-EH3P(3-10)K-H-EU/ S6-EH3P(3-10)K2-H

16. Deye SUN-(5-20)K-SG01HP3-EU-AM2

17. GE GEH 5.0/ 8.6/ 10-1U-10

18. Solplanet

19. Western CO HHS 3000-6000/ HBS 3000-6000

20. Western CO HHT 5000-12000/ HBT 5000-12000

21. Sosen HI 3K-6K

22. GoodWe/ Viessmann/ Canadian Solar

23. Hoymiles

24. Afore AF(3-15)K-MTH

25. Afore AF(3-30)K-TH/ AF(3-12)K-THP/ AF(3-17)K-THA

26. Maxhub PHN(5-10)KT-BH2

27. Kontron SolBrid 10-3-2/10-3-4

Contact Information

Global Service: BYD Company limited

• Email: bboxservice@byd.com
• Phone: +86 755 89888888-47175
• Address: No.3009, BYD Road, Pingshan, Shenzhen, 518118, P.R. China
• Website: www.bydbatterybox.com

Europe: EFT-Systems GmbH

• Email: service@eft-systems.de
• Phone: +49 9352 8523999 / +44 (0) 2037695998(UK) / +34 91 060 22 67(ES) / +39 02 87368364(IT)
• Address: Bruchtannenstr. 28, 63801 Kleinostheim, Germany
• Website: www.eft-systems.de

Australia: Alps Power Pty Ltd

• Email: service@alpspower.com.au
• Phone: +61 2 8005 6688
• Address: 2/62 Belmore Road, Riverwood, NSW 2210
• Website: www.alpspower.com.au

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