SAJ B2S Series User Manual
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SAJ B2S Series User Manual

SAJ B2S Series User Manual

High-voltage battery
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B2S Series
B2S
Series
HIGH-VOLTAGE BATTERY
USER MANUAL
B2-(5.0-25.0)-HV1-S
B2-(5.0-25.0)-HV5-S
1

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Summary of Contents for SAJ B2S Series

  • Page 1 B2S Series Series HIGH-VOLTAGE BATTERY USER MANUAL B2-(5.0-25.0)-HV1-S B2-(5.0-25.0)-HV5-S...
  • Page 2 We make constant improvements on the products and their documentation. This manual is subject to change without notice; these changes will be incorporated in new editions of the publication. To access the latest documentation, visit the SAJ website at https://www.saj-electric.com/.

  • Page 3: Table Of Contents

    B2S Series TABLE OF CONTENTS 1. SAFETY PRECAUTIONS ..........................................1 1.1. About This Document ....................................2 1.1.1. Overview ......................................2 1.1.2. Target audience ....................................2 1.2. Safety ..........................................2 1.2.1. Safety Levels ...................................... 2 1.2.2. Symbol Explanation ..................................3 1.2.3.
  • Page 4 B2S Series 2.4.2. Battery Module ......................................12 2.5. Ports, switches, and LED on the Battery Control Unit ........................13 2.6. Ports on the Battery Module .................................. 14 2.7. LED Indicators on the Battery Control Unit ............................15 2.8. Datasheet ........................................16 2.8.1.
  • Page 5 B2S Series 5.6. Installing Side Covers ....................................48 5.6.1. Battery control unit ..................................48 5.6.2. Battery module ....................................48 6. Startup and Shutdown ..........................................49 6.1. Startup ......................................... 50 6.2. Shutdown ........................................50 7. Commissioning ..............................................51 7.1. About the Elekeeper App ..................................52 7.2.

  • Page 6: Safety Precautions

    B2S Series SAFETY PRECAUTIONS...

  • Page 7: About This Document

    User Manual provides introductions and instructions of installing, operating, maintaining, and troubleshooting of the B2S series battery, as listed in section 2.2 "Models”. Read the user manual carefully before any installation, operation and maintenance and follow the instructions during installation and operation. Keep this manual all time available in case of emergency.

  • Page 8: Symbol Explanation

    B2S Series 1.2.2. Symbol Explanation Symbol Description Danger: Electrical shock hazard This device is directly connected to public grid, thus all work to the battery shall only be carried out by qualified personnel. WARNING: No open flames Do not place or install near flammable or explosive materials.

  • Page 9: Safety Instructions

    • SAJ electric shall not be liable for any loss or warranty claims arising from any unauthorized change of product which may cause fatal injury to the operator, third party or equipment performance.

  • Page 10: Safe Handling

    ⚫ Operate and use the battery properly according to the user manual. Any attempts to modify battery without the permission from SAJ will void the limit warranty for the battery. ⚫ The battery must be installed at a suitable location with sufficient ventilation.
  • Page 11 B2S Series area where the battery pack is installed. Wear a gas mask and avoid inhaling toxic gases and harmful substances produced by the fire. ⚫ Use an ABC fire extinguisher, if the fire is not caused by battery and not spread to it yet.

  • Page 12: Product Information

    B2S Series PRODUCT INFORMATION...

  • Page 13: General Introduction

    B2S battery is a high voltage battery system. The battery employs modular design for easy installation and wiring. The battery B2S can only be used as a set with SAJ's H2 high voltage series storage inverter, otherwise it cannot be used normally.

  • Page 14: Models

    B2S Series 2.2. Models 2.2.1. Product Models The B2S series includes the following SAJ products: B2-5.0-HV1-S B2-10.0-HV1-S B2-15.0-HV1-S B2-20.0-HV1-S B2-25.0-HV1-S B2-5.0-HV5-S B2-10.0-HV5-S B2-15.0-HV5-S B2-20.0-HV5-S B2-25.0-HV5-S 2.2.2. Model Description B2: Batter model series : Rated energy x kWh of the battery. For example, 5.0 indicates the rated energy of this battery is 5.0 kW/h.

  • Page 15: Battery Module Package

    B2S Series Positive PV connector *1 Positive battery cable (1.5m) *1 Negative PV connector *1 Negative battery cable (1.5m) *1 Waterproof cover *1 RJ45 plug *2 (Australia only) (Australia only) Communication cable M4*10 screw *1 M10*80 screw *2 M5*12 screw *2 (1.5m) *1...

  • Page 16: Base For Ground Mounting (Optional)

    B2S Series 2.3.3. Base for Ground Mounting (Optional) Base *1 Base foot *4 M4*10 screw *2 2.3.4. Bracket for Wall Mounting (Optional) Top plate *1 Left foot *1 Right foot *1 M6*12 screw *6 M10*80 expansion bolt *6 M4*10 screw *1 2.3.5.

  • Page 17: Dimension

    B2S Series 2.4. Dimension 2.4.1. Battery Control Unit Dimension (mm): 200*626*365 Figure 2.2. Battery control unit dimension 2.4.2. Battery Module Dimension (mm): 261*626*365 Figure 2.3. Battery module dimension...

  • Page 18: Ports, Switches, And Led On The Battery Control Unit

    B2S Series 2.5. Ports, switches, and LED on the Battery Control Unit Figure 2.4. Ports, switches, and LED on the battery control unit Callout Silkscreen Description B+ and B- For connection to the battery module BATTERY SWITCH ON/OFF Circuit breaker...

  • Page 19: Ports On The Battery Module

    B2S Series 2.6. Ports on the Battery Module Figure 2.5. Ports on the battery module Callout Silkscreen Description LINK Port0 Link port 0, for battery communication connection LINK Port1 Link port 1, for battery communication connection Grounding point B – port, for battery negative power connection B +port, for battery positive power connection Table 2.2.

  • Page 20: Led Indicators On The Battery Control Unit

    B2S Series 2.7. LED Indicators on the Battery Control Unit Figure 2.6. LED indicators on the battery control unit LED indicator Status Description Solid on The battery is working properly. Breathing 6s The battery is in initialization or standby state.

  • Page 21: Datasheet

    B2S Series 2.8. Datasheet 2.8.1. B2-5.0-HV1-S Battery Module BU2-5.0-HV1-S (1P32S 102.4V 50Ah) Number of Battery Modules Rated Energy [kWh] 10.0 15.0 20.0 25.0 Usable Energy [kWh] 13.5 18.0 22.5 Rated Power (W) 5000 10000 15000 20000 25000 Dimension (H*W*D) [mm]...

  • Page 22: B2-5.0-Hv5-S

    B2S Series 2.8.2. B2-5.0-HV5-S Battery Module BU2-5.0-HV5-S (1P32S 102.4V 50Ah) Number of Battery Modules Rated Energy [kWh] 10.0 15.0 20.0 25.0 Usable Energy [kWh] 13.5 18.0 22.5 Rated Power (W) 5000 10000 15000 20000 25000 Dimension (H*W*D) [mm] 261*626*365 522*626*365...
  • Page 23 B2S Series...

  • Page 24: Transportation And Storage

    B2S Series TRANSPORTATION AND STORAGE...

  • Page 25: Transportation

    The battery cannot be disposed of as household refuse. When the service life of the battery reaches ⚫ to the limit, it is not required to return it to the dealer or SAJ, but it must be recycled to the special waste lithium battery recycling station in the area...

  • Page 26: Installation

    B2S Series INSTALLATION...

  • Page 27: Precautions

    B2S Series 4.1. Precautions For safety, be sure to read all the safety instructions carefully prior to any works and observe the appropriate rules and regulations of the country or region where you installed the energy storage system. DANGER •...

  • Page 28: Installation Location Requirements

    B2S Series ⚫ Keep the device from water sources such as taps, sewer pipes and sprinklers to prevent water seepage. ⚫ It is recommended that the device be installed in an area where its status can be easily checked and maintained in case of failure or emergency.
  • Page 29 B2S Series ⚫ Choose a solid and smooth wall to ensure that the device can be installed securely on the wall. Make sure that the wall can bear the weight of the device and accessories. Reserve enough clearance around the device to ensure a good air circulation at the installation area, ⚫...

  • Page 30: Preparing Installation Tools

    B2S Series 4.3. Preparing Installation Tools The tools illustrations are for your reference. Installation tools include but are not limited to the following recommended ones. Use other auxiliary tools based on site requirements. Multimeter Measurement Utility knife Marker Measuring tape...

  • Page 31: Unpacking

    4.4. Unpacking 4.4.1. Checking the Outer Packing Although SAJ’s products have thoroughly tested and checked before delivery, there is possibility that the products may suffer damages during transportation. Check the outer packing package for any damage, such as holes and cracks.
  • Page 32 B2S Series Step 2. Place the base on the ground. Make sure the distance between the base and the wall is 28-34mm. Place the battery module onto the base and secure it with screws (M4*10). M4*10 1.2 N· m Figure 4.6. Securing the battery to the wall...
  • Page 33 B2S Series Step 3. Place the second battery module onto the first battery module. On each side of the battery, rotate the locking bracket clockwise and secure it. Repeat the same operations until all required battery modules are installed. M4*10 1.2 N·...
  • Page 34 B2S Series Step 4. Place the battery control unit onto the top of the battery pack. Install the locking brackets on each side of the battery control unit and mark the U-shaped hole of the locking brackets on the wall.
  • Page 35 B2S Series Step 5. Drill holes (13mm in diameter, 65mm in depth) at the positions marked in step 4. Figure 4.9. Drilling holes on the wall...
  • Page 36 B2S Series Step 6. Place the battery control unit back to the top of the battery pack. To secure the battery control unit to the wall, use a rubber hammer to drive the M10*80 screws into the drilled holes and then use the wrench to tighten the screws.

  • Page 37: Wall Mounting

    B2S Series 4.5.2. Wall mounting Before you start Make sure that the wall can bear the weight of the device and accessories. Procedure Step 1. Assemble the bracket. Figure 4.11. Assembling the bracket...
  • Page 38 B2S Series Step 2. Place the Mark the proper positions of locking bracket and drill holes on those positions (13mm in diameter, 65mm in depth) by using the locking bracket as a template, and then use a rubber hammer to drive the screw fixing seat into the holes to fix the bracket.
  • Page 39 B2S Series Step 3. Place the battery module on the bracket and tighten the screws to secure it to the wall. Place the second battery module onto the first battery module. On each side of the battery, rotate the locking bracket clockwise and secure it.
  • Page 40 B2S Series Step 4. Place the battery control unit onto the top of the battery pack. Install the locking brackets on each side of the battery control unit and mark the U-shaped hole of the locking brackets on the wall. Then, remove the battery control unit.
  • Page 41 B2S Series Step 5. Drill holes (13mm in diameter, 65mm in depth) at the positions marked in step 4. Figure 4.15. Drilling holes on the wall...
  • Page 42 B2S Series Step 6. Place the battery control unit back to the top of the battery pack. To secure the battery control unit to the wall, use a rubber hammer to drive the M10*80 screws into the drilled holes and then use the wrench to tighten the screws.
  • Page 43 B2S Series...

  • Page 44: Electrical Connection

    B2S Series ELECTRICAL CONNECTION...

  • Page 45: Safety Instructions

    B2S Series 5.1. Safety Instructions Electrical connection must only be operated on by professional technicians. Operators must be aware that the inverter is a bi-power supply equipment. Before connection, necessary protective equipment must be employed by technicians including insulating gloves, insulating shoes, and safety helmet.

  • Page 46: Connecting Communication Cables Among Batteries

    B2S Series Step 2. Connect the grounding cable on the battery control unit and the battery modules. Remove the M4*10 screw from the grounding port on the battery control unit. Connect and secure the grounding cable. Use M4*10 screws to connect and secure the grounding cables on the battery modules.
  • Page 47 B2S Series Procedure Step 1. Connect LINK Port0 on the battery control unit to Link Port 1 on battery 5. Step 2. Connect Link Port 0 on Battery 5 to Link Port 1 of Battery 4. Repeat the same operations on Batteries 3, 2, and 1 until all five batteries are connected.

  • Page 48: Connecting Power Cables Among Batteries

    B2S Series 5.4. Connecting Power Cables among Batteries WARNING • Power off the battery system before connecting the power cable to avoid high voltage danger • The electrical connection of high voltage battery systems must be operated by qualified technicians in accordance with local and national power grid standards and regulations.

  • Page 49: Connecting The Battery To The Inverter

    B2S Series 5.5. Connecting the Battery to the Inverter Use the 1.5m communication cable (standard network cable) provided in the battery control unit package. 5.5.1. Single-Cluster Battery Connection Before you start Make sure that the vertical height between the inverter and the battery control unit is less than 0.7m.
  • Page 50 B2S Series Figure 5.6. Single-cluster connection Step 3: For the communication cable, use an open-ended wrench to secure the RJ45 connector to the CAN1 port on the inverter. Tighten the seal and the sealing nut to the connector body. Figure 5.7. Securing the RJ45 connector to the CAN1 port...

  • Page 51: Multi-Cluster Battery Connection

    B2S Series 5.5.2. Multi-cluster Battery Connection About this task If two or more clusters of batteries are installed, install the inverter in a location adjacent to the first cluster of batteries. Use the 4m negative power cable (refer to section 2.3.5 “Accessory Package for Multi-cluster Battery Connection (Optional)"), instead of the 1.5m negative power cable provided in the battery control...
  • Page 52 B2S Series Figure 5.8. Multi-cluster battery connection...

  • Page 53: Installing Side Covers

    B2S Series 5.6. Installing Side Covers 5.6.1. Battery control unit Push the side covers inwards. Press the cover downwards. Tighten the screws on the cover. Figure 5.9. Installing the side covers on the battery control unit 5.6.2. Battery module Push the side covers inwards. Push the side covers forwards. Secure it with screws (M4*25).

  • Page 54: Startup And Shutdown

    B2S Series STARTUP AND SHUTDOWN...

  • Page 55: Startup

    B2S Series 6.1. Startup Step 1. Turn on the circuit breaker. Step 2. Press and hold the main switch for two to three seconds, until the LED indicator on the battery control unit is on. Figure 6.1. Switches on the left side of the inverter 6.2.

  • Page 56: Commissioning

    B2S Series COMMISSIONING...

  • Page 57: About The Elekeeper App

    User Manual SAJ Configuration To perform commissioning operations on the App, refer to the inverter Guide Notes: ⚫ The detailed operations on the App might vary, depending on the version you are using. ⚫ During battery brand selection, select SAJ battery.

  • Page 58: Troubleshooting

    B2S Series TROUBLESHOOTING...
  • Page 59 B2S Series For any errors reported as below, contact the after-sales for service support. The operations and maintenance must be performed by authorized technicians. Error Possible cause Solution Error message code 1. Communication error between battery control unit and battery module 1.
  • Page 60 B2S Series Error Possible cause Solution Error message code temperature. The battery temperature is higher than Charging temperature high Wait until battery temperature the maximum battery protection protection decreased and the error is clear temperature. The battery temperature is lower than...
  • Page 61 B2S Series Error Possible cause Solution Error message code Temperature difference is too 1. Temperature sensor error Check if temperature sensor wide 2. Battery life span cable is in poor contact 1. Check if voltage sensor cable Voltage difference is too wide 1.

  • Page 62: Appendix

    B2S Series APPENDIX...

  • Page 63: Recycling And Disposal

    Check the product warranty conditions and terms on the SAJ website: https://www.saj-electric.com/ 9.3. Contacting Support Guangzhou Sanjing Electric Co., Ltd. Address: SAJ Innovation Park, No.9, Lizhishan Road, Guangzhou Science City, Guangdong, P.R.China. Postcode: 510663 Website: https://www.saj-electric.com/ Technical Support & Service...
  • Page 64 B2S Series GUANGZHOU SANJING ELECTRIC CO.,LTD Tel: (86)20 66608588 Fax: (86)20 66608589 Web: www.saj-electric.com Add: SAJ Innovation Park,No.9, Lizhishan Road, Science City, Guangzhou High-tech Zone , Guangdong, P.R.China V0.1...

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