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BigBattery ETHOS User Manual

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48V ETHOS
USER MANUAL

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Summary of Contents for BigBattery ETHOS

  • Page 1 48V ETHOS USER MANUAL...
  • Page 2 VERSION HISTORY Edition Date hapters Reason for Change 12/13/2023 Manual development Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 3: Table Of Contents

    6.1 Installation Safety Guidelines........... 17 6.2 Installation Requirements..........17 6.3 Ethos System Installation..........18 6.3.1 Ethos System Mounting..........18 6.3.2 Ethos System Connections........20 6.4 Ethos System Wiring Connection Diagrams....23 6.4.1 10kWh System............23 6.4.2 15kWh System............24 6.4.3 20kWh System............25 Need Further Assistance? Email us @ Support@BigBattery.com...
  • Page 4 8.5 Extend the life of your Battery.......... 34 9. Service..................35 9.1 Troubleshooting..............35 9.2 Maintenance..............36 9.3 Monitoring Software............37 10. Recycling................40 11. Warranty & Returns..............40 Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 5: Definition Of Terms

    ● State of Charge (SOC) — Battery's remaining charge as a percentage ● State of Health (SOH) — Overall battery condition and performance ● Thermal Runaway — Dangerous overheating with potential battery damage ● V — Volt(s) Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 6: Safety Instructions

    Have a Class ABC or Class BC fire extinguisher on the premises. Never short-circuit DC inputs: may result in a risk of electric shock or fire. Do not disassemble the battery: Contact BigBattery for proper handling instructions. Incorrect servicing or re-assembly may result in a risk of electric shock or fire and voiding the warranty...
  • Page 7 Before storing battery for more than 6 months, fully charge the battery and disconnect batteries from your system. Disclaimer: BigBattery, Inc has the authority to modify the content here without prior notice. To access the latest manual version, please visit our website at www.bigbattery.com.

  • Page 8: Introduction

    The battery utilizes a standard M8 bolt connection, which easily and safely secures power to your battery unit. Designed to endure, the ETHOS has a lifespan of over 10 years and is engineered to withstand more than 4000 - 8000 cycles at 80% Depth of Discharge (DOD) at a rate of 0.5C°.

  • Page 9: Features & Applications

    ● RJ-45 ports ● Built-in fire suppression system ● Hidden cables for better ● Good insulation performance presentation 4. Packed Components 4.1 ETHOS Battery Module Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 10: Ethos Controller Box

    4.2 ETHOS Controller Box 4.3 ETHOS Parallel Kit The Ethos Parallel Kit allows the system to expand from 15kWh to 20kWh, 30kWh up to 76.8kWh. Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 11: Ethos Battery System

    4.4 ETHOS Battery System Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 12: Product Specifications

    The Ethos Battery System can connect up to 15 batteries for a Total of 76.8 kWh. 5. Product Specifications 5.1 ETHOS Overview Figure 1: ETHOS Battery and Controller Overview Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.
  • Page 13 Figure 2: ETHOS System Overview Before handling the battery, always switch it off and verify there is no voltage with a voltmeter to prevent accidental contact with live terminals. Failure to do so could lead to severe injury or fatality.

  • Page 14: Ethos System Specs

    5.2 ETHOS System Specs Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 15: Ethos Diagram

    5.3 ETHOS Diagram ETHOS Battery Figure 3: ETHOS Battery Diagram Item Name Description Details Ground Terminal Screw Comm Port RJ45 Communication Port RS485/CAN 4 LEDS On = 100% Battery State of Charge LEDS 3 LEDS On = 75% Indicators 2 LEDS On = 50%...

  • Page 16: Id Addresses Description

    ETHOS Controller Box Figure 4: ETHOS Controller Box Diagram Item Name Description Details Inverter - Negative Inverter Terminal Inverter + Positive Inverter Terminal Batt Comm RJ45 Communication Port RS485/CAN Inverter Comm RJ45 Communication Port RS485/CAN Breaker Controller Box Power ON/OFF...

  • Page 17: Communication Ports Description

    1 LED On = 25% Discharge Over voltage All on Under voltage All off Notes: Shutdown: All LED lights are off. Each SOC light represents 25% Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 18: Installation

    ● Use a screwdriver with a rubber coated handle. ● Do not put the ETHOS batteries in series. The BMS and internal components are not designed to handle this setup, which could cause the modules to fail.

  • Page 19: Ethos System Installation

    6.3 Ethos System Installation 6.3.1 Ethos System Mounting ① Install the bottom base on the ground about 1.2 inches (30 mm) from the wall, as shown in figure 5. Figure 5: Bottom base installation ② Stack up one battery module on top of the bottom base, the side with visible screws should be facing the wall, as illustrated on figure 6.
  • Page 20 L brackets and the mounting screws. Refer to figures 7 and 8. Figure 7: Controller box installation Figure 8: L bracket installation Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 21: Ethos System Connections

    ● Finally, set each of the battery module’s ID dip switches according to section 5.4. “ID Addresses Description”, the first battery module connected directly to the Ethos controller will be set to 1, the second one will be 2, the third one 3, and so on. Make sure every battery has a different and unique ID.
  • Page 22 Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.
  • Page 23 Finally, attach the side panels to each module and use the secure screws to tight them, as shown in figure 11. Figure 11: Side panel installation Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 24: Ethos System Wiring Connection Diagrams

    6.4 Ethos System Wiring Connection Diagrams 6.4.1 10kWh System Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 25: 15Kwh System

    6.4.2 15kWh System Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 26: 20Kwh System

    6.4.3 20kWh System BigBattery suggests having 12 inches of distance between each Ethos Stack Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 27: 30Kwh System

    6.4.4 30kWh System BigBattery suggests having 12 inches of distance between each Ethos Stack. Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 28: Installation With Lux 12K Hybrid Inverter

    6.5 Installation with LUX 12K Hybrid Inverter See figure 12 & 13 for a wiring diagram between the Ethos Controller box and the LUX-Power 12K Hybrid Inverter. See Lux-Power 12K Hybrid Inverter manual, it will have additional details for set up.
  • Page 29 Figure 13: Ethos with LuxPower 12K Inverter Connections BigBattery suggests installing the Lux Inverter at least 12 inches of distance away from the Ethos System. Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 30: Battery Commissioning

    7. Battery Commissioning If the Ethos battery is connected to an inverter and you want the battery to communicate with the inverter, the battery address and protocol need to be configured through the screen on the controller box. If communication is not needed, the battery can be directly connected to the inverter and you would select the Lead-Acid or user-defined configuration on the inverter.
  • Page 31 Hold the “BACK” button for five seconds and release it to enter the “Protocol Setting” menu, shown in figure 16. Figure 16: Ethos protocol setting menu Use the “UP” and “DOWN” buttons to navigate the “Protocol Setting” menu and press “ENTER”...
  • Page 32 Figure 17: Ethos RS485 protocol menu Figure 18: Ethos CAN protocol menu Use the “UP” and “DOWN” buttons to navigate the RS485/CAN protocol menus and press “ENTER” to select the highlighted protocol, the display will then return to the previous screen. See section 7.2. for a list of supported inverters and their associated address.

  • Page 33: Supported Inverters

    ● During the initial charging, monitor the battery’s charge voltage to ensure it is within appropriate voltage limits. ● Only use the battery charger provided by BigBattery, or the inverter charging settings listed on section 5.2. Using non-recommended chargers may cause improper charging and damage the battery’s capacity.

  • Page 34: Discharging

    Avoid over discharging by removing the load when the battery's discharge is done. 8.3 State of Charge This is the Depth of Discharge of the Ethos battery: Need Further Assistance? Email us @ Support@BigBattery.com...

  • Page 35: Storage

    Once / 3M 8.5 Extend the life of your Battery The Ethos Battery is designed 10 years or more when used correctly. To ensure a proper battery operation, you must follow the previous listed instructions and battery parameters. In order to extend the lifespan of your battery, follow these recommendations.

  • Page 36: Service

    Examine/balance the cell insufficient Unable to charge and BMS or cell/temperature Maintenance or replacement discharge sensor damaged Different SOC value of Normal phenomenon No operation batteries in parallel Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 37: Maintenance

    Status check whether the system air inlet and outlet, air ducts are normal, if there is blockage and congestion, need to clean up in time Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 38: Monitoring Software

    Check your laptop's device manager to validate that the COM port is detected. ④ Open the “ ” application which is located in BMS-TOOLS > BIN > BMS_TOOLS.exe. You will then see the screen shown in figure 17. Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.
  • Page 39 Figure 20: BMS Tools Monitor Status ⑥ Click “SearchDevice” and let the loading bar complete, once it does you should see the detected battery as shown in figure 19. Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.
  • Page 40 The BMS data will now populate as shown in figure 22. From this point you can see real time data from your BMS and view historical data. Figure 22: BMS Tools connected screen Need Further Assistance? Email us @ Support@BigBattery.com (OR) Call us @ # (818) 280-3091.

  • Page 41: Recycling

    In the unlikely event you are having an issue with one of our batteries we have developed a straightforward warranty & return policy which includes the following: ● For all returns or warranty claims contact support@bigbattery.com. ● 30-day money back guarantee. Returns of undamaged batteries unrelated to warranty claims may be issued full refunds less a 20% restocking fee.
  • Page 42 finished an inspection to determine the cause of any problems. BigBattery is not responsible for return shipping. ● DIY modifications or damage due to gross negligence or abuse are not covered by the warranty.

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