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battery_compatibility:byd_b-box [2020-03-18 17:34]
mvader [5. GX device configuration]
battery_compatibility:byd_b-box [2020-03-19 16:34] (current)
guy_stewart [3. CAN-Bus wiring between the battery and GX Device]
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-====== Victron & BYD B-Box ===== +^  Battery ^  Pro 2.5-10.0 ^  Pro 12.8 & 13.8 ^  L 3.5-14.0 ^ Premium LVL 15.4 ^ Premium LVS 3.8 
- +|  Appearance |  {{ :​battery_compatibility:​byd-bbox2-5.jpg?​nolink&​100 |}}|  {{ :​battery_compatibility:​byd-bbox13-8.jpg?​nolink&​100 |}}|  {{ :​battery_compatibility:​byd-l3-5.jpg?​nolink&​100 |}}| {{:​battery_compatibility:​byd_premium_lvl.jpg?​nolink&​150|}}  |  {{:​battery_compatibility:​byd_lvs.jpg?​nolink&​80}}  | 
-The combination of Victron products with BYD Battery-Box LV lithium batteries has been tested and certified by the Victron and BYD R&D departments. This combination has extensive field experience and is actively supported by both companies. +|  ESS |  yes|  yes|  yes|  yes|  yes| 
- +|  Grid Backup| ​ yes|  yes|  yes |   yes|  ​yes| 
-The BYD B-Box includes an integrated Battery Management System (BMS) with each battery cell module, and a Battery Management Unit (BMU) that interfaces with the Victron [[venus-os:​start|GX device]] and supports multiple battery modules.  +|  Off-Grid| ​ yes|  yes|  no|  yes|  yes| 
- +|  Module capacity| ​ 2.5 kWh |  13.8 kWh |  3.5 kWh|   ​15.36 ​kWh|  3.84 kWh| 
-^  Battery ^  Pro 2.5-10.0 ^  Pro 12.8 & 13.8 ^  L 3.5-14.0 ^ Premium LVL 15.4 ^ +|  Module limit |  32|  32|  12|  64|  64| 
-|  Appearance |  {{ :​battery_compatibility:​byd-bbox2-5.jpg?​nolink&​100 |}}|  {{ :​battery_compatibility:​byd-bbox13-8.jpg?​nolink&​100 |}}|  {{ :​battery_compatibility:​byd-l3-5.jpg?​nolink&​100 |}}| {{:​battery_compatibility:​byd_premium_lvl.jpg?​nolink&​150|}} ​ | +|  Max capacity| ​ 80 kWh|  441.6 kWh|  42 kWh|  983 kWh|  245.8 kWh|
-|  ESS |  yes|  yes|  yes|  yes| +
-|  Grid Backup| ​ yes|  yes|  yes |   ​yes| +
-|  Off-Grid| ​ yes|  yes|  no|  yes| +
-|  Module capacity| ​ 2.5 kWh |  13.8 kWh |  3.5 kWh|   15.36 kWh| +
-|  Module limit |  32|  32|  12|  64| +
-|  Max capacity| ​ 80 kWh|  441.6 kWh|  42 kWh|  983 kWh| +
 ===== 1. Product & System compatibility ===== ===== 1. Product & System compatibility =====
  
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 | B-BOX L 3.5-14.0 ​    | | B-BOX L 3.5-14.0 ​    |
 | B-BOX Premium LVL 15.4     | | B-BOX Premium LVL 15.4     |
 +| B-BOX Premium LVS 3.8     |
  
 BYD also releases firmware update for their BMU and BMS.  BYD also releases firmware update for their BMU and BMS. 
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 Minimum BYD firmware version for B-Box Pro: BMU_V2_V4-13_15-Mar-2017. On-screen, or via Remote Console on the [[venus-os:​start|GX device]], this version is named v4.13. Batteries with older firmware versions can be updated. Please contact BYD for more information. Minimum BYD firmware version for B-Box Pro: BMU_V2_V4-13_15-Mar-2017. On-screen, or via Remote Console on the [[venus-os:​start|GX device]], this version is named v4.13. Batteries with older firmware versions can be updated. Please contact BYD for more information.
  
-BYD Premium ​LVL batteries firmware should be no less than V1.4, and the BMS firmware should be no less than V1.3. If necessary, this can be updated automatically via the ethernet port on the BMU when connected to the internet.+BYD B-Box Premium batteries firmware should be no less than V1.4, and the BMS firmware should be no less than V1.3. If necessary, this can be updated automatically via the ethernet port on the BMU when connected to the internet.
  
 ===== 2. Minimum Battery Sizing ===== ===== 2. Minimum Battery Sizing =====
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 |  EasySolar 48/​3000/​35-50 MPPT150/​70| ​ 1|  1|  1|  1| |  EasySolar 48/​3000/​35-50 MPPT150/​70| ​ 1|  1|  1|  1|
 |  EasySolar 48/​5000/​70-100 MPPT150/​100| ​ 1|  2 \ 2|  1|  2| |  EasySolar 48/​5000/​70-100 MPPT150/​100| ​ 1|  2 \ 2|  1|  2|
- + 
 + 
 +=== Battery Modules Required - Premium LVS 3.8 === 
 + 
 +|Phases| ​         Single Phase| Three Phase| Single Phase| ​  Three Phase| 
 + Inverter/​Charger |  On-Grid |  On-Grid |  Off-grid |  Off-grid \ with inrush | 
 +|                   ​Multiplus 48/​3000/​35| ​ 1|  2|  1|  4 \ 6| 
 +|                   ​Multiplus 48/​5000/​70| ​ 1|  2|  2|  6 \ 8| 
 +|             ​Quattro 48/​5000/​70-100/​100| ​ 1|  2|  2|  6 \ 8| 
 +|            Quattro 48/​8000/​110-100/​100| ​ 1|  2|  4|  8 \ 12| 
 +|          Quattro 48/​10000/​140- 100/​100| ​ 1|  4|  5|  12 \ 16| 
 +|          Quattro 48/​15000/​200- 100/​100| ​ 1|  4|  7*|  16 \ 24| 
 +|     ​EasySolar 48/​3000/​35-50 MPPT150/​70| ​ 1|  2|  1|  4 \ 4| 
 +|   ​EasySolar 48/​5000/​70-100 MPPT150/​100| ​ 1|  2|  2|  8 \ 8| 
 + 
 +* Note for 7 units two stacks are required. One stack is 4 battery modules, the other is 3. 
 **"​With inrush"​** - this is the advice for systems that have load profiles that use the full surge capacity of the inverter, eg Multiplus 48/5000/70 providing 10 kW for 5 seconds to start an electric motor. ​ **"​With inrush"​** - this is the advice for systems that have load profiles that use the full surge capacity of the inverter, eg Multiplus 48/5000/70 providing 10 kW for 5 seconds to start an electric motor. ​
  
-The specification for these minimum battery sizes was obtained from [[http://​alpspower.com.au/​wp-content/​uploads/​2018/​05/​Battery-Box-LV-Res-2.510.0-Mini-configuration-list.pdf|BYD’s 2018 minimum specification guide.]] There is an [[http://​alpspower.com.au/​wp-content/​uploads/​2017/​10/​B-BOX-LV-Pro-13.8-Minimum-configuration-list.pdf|additional guide here]] for the 12.8 and 13.8 models, and [[https://​secureservercdn.net/​198.71.233.41/​x4m.ee6.myftpupload.com/​wp-content/​uploads/​2020/​03/​BYD-Battery-Box-Premium-LVL-Minimum-Configuration-List-V1.0.pdf|here for the Premium LVL 15.4 model.]] ​+The specification for these minimum battery sizes was obtained from [[http://​alpspower.com.au/​wp-content/​uploads/​2018/​05/​Battery-Box-LV-Res-2.510.0-Mini-configuration-list.pdf|BYD’s 2018 minimum specification guide.]] There is an [[http://​alpspower.com.au/​wp-content/​uploads/​2017/​10/​B-BOX-LV-Pro-13.8-Minimum-configuration-list.pdf|additional guide here]] for the 12.8 and 13.8 models, and [[https://​secureservercdn.net/​198.71.233.41/​x4m.ee6.myftpupload.com/​wp-content/​uploads/​2020/​03/​BYD-Battery-Box-Premium-LVL-Minimum-Configuration-List-V1.0.pdf|here for the Premium LVL 15.4 model, and [[https://​secureservercdn.net/​198.71.233.41/​x4m.ee6.myftpupload.com/​wp-content/​uploads/​2020/​03/​BYD-Battery-Box-Premium-LVL-Minimum-Configuration-List-V1.0.pdf|here for the Premium LVL 15.4 model]] 
  
  
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 Without properly connecting this cable, the battery will not show up on the display of the [[venus-os:​start|GX device]]. The battery will also turn itself off after several minutes. Without properly connecting this cable, the battery will not show up on the display of the [[venus-os:​start|GX device]]. The battery will also turn itself off after several minutes.
  
-It is important to ensure this connection and display of the battery on the [[venus-os:​start|GX device]] display before attempting firmware updates or settings changes on other devices if they depend on the power supply from the battery. Without this connection, the battery may turn off unexpectedly. ​If a reliable DC power supply ​is requiredyou can temporarily ​disconnect ​the individual BYD battery cells inside their cabinet from the internal Battery Management Unit (BMU). It is the BMU that signals the battery cells to shut down if the signal from the [[venus-os:​start|GX device]] has not been received. This is a temporary measure, DO NOT attempt to operate the battery cells normally without connection to the BMU. +It is important to ensure this connection and display of the battery on the [[venus-os:​start|GX device]] display before attempting firmware updates or settings changes on other devices if they depend on the power supply from the battery. Without this connection, the battery may turn off unexpectedly. ​It is possible to bypass this automatic shutdownand other protections ​temporarily ​by disconnecting ​the individual BYD battery cells inside their cabinet from the internal Battery Management Unit (BMU). It is the BMU that signals the battery cells to shut down if the signal from the [[venus-os:​start|GX device]] has not been received. This is a temporary measure ​for use only when troubleshooting to resume normal operation, DO NOT attempt to operate the battery cells normally without connection to the BMU. 
  
 ===== 4. VEConfigure settings ===== ===== 4. VEConfigure settings =====
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 The CAN-bus connections are galvanically isolated at the BYD BMU. There is no issues using the non-isolated connection of the VGX.  The CAN-bus connections are galvanically isolated at the BYD BMU. There is no issues using the non-isolated connection of the VGX. 
  
-===== 6. Solar Charger configuration ​=====+===== 6. Solar Charging ​=====
  
-The MPPT charge characteristics are automatically configured & governed by the [[venus-os:​start|GX device]]. The settings below are a precautionary measure only:+==== 6.1 Victron MPPT charger settings ==== 
 + 
 +Victron ​MPPT charge characteristics are automatically configured & governed by the [[venus-os:​start|GX device]]. The settings below are a precautionary measure only:
  
 ^ MPPT Parameter ^ Setting ^ ^ MPPT Parameter ^ Setting ^
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 Use [[victronconnect:​start|VictronConnect]] for Solar Charger configuration. Use [[victronconnect:​start|VictronConnect]] for Solar Charger configuration.
 +
 +==== 6.2 Self-Startup from Low voltage shutdown modes ====
 +
 +In a correctly configured system, the inverter will shut itself down before the batteries enter a self protective shut down state. ​
 +
 +If your system is charged only with an AC-coupled PV inverter, this may prevent the AC-coupled PV inverter from starting up to recharge the batteries. Therefore it is strongly recommended that there is also either a generator or DC MPPT charge controller to provide DC bus power to bring the inverter back online to allow normal recharging to resume. ​
 +
 +Even a single 100/20 48V MPPT charger unit with 2 x 60 cell solar panels would be sufficient to add this self correcting mechanism able to maintain the DC bus voltage and improve longterm system reliability considerably from accidental deep discharge and subsequent shut down. 
 ===== 7. Example Wiring Diagram ===== ===== 7. Example Wiring Diagram =====
  
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 A user contributed [[battery_compatibility:​byd_b-box-steps|step by step installation guide is available here.]] Please be aware that this guide is no longer current. It should not be considered a best practice, but provides further detail and insights from an actual installation. A user contributed [[battery_compatibility:​byd_b-box-steps|step by step installation guide is available here.]] Please be aware that this guide is no longer current. It should not be considered a best practice, but provides further detail and insights from an actual installation.
    
-===== 10. Known Issues =====+===== 10. Known Issues ​with B-Box Pro models ​=====
  
-=== 10.1 Inaccurate State of Charge (SoC) Readings ===+The following information only applies to the B-Box Pro models, and not to the B-Box Premium models. 
 + 
 +=== 10.1 Inaccurate State of Charge (SoC) Readings ​with B-Box Pro models ​===
  
 Each BYD battery module has it’s own BMS. This BMS reports it’s battery information to the BMU which is connected to the [[venus-os:​start|GX device]] and reported to the user and the system. ​ Each BYD battery module has it’s own BMS. This BMS reports it’s battery information to the BMU which is connected to the [[venus-os:​start|GX device]] and reported to the user and the system. ​
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 There has been a firmware revision for the BYD battery modules and BMU that improves cold weather performance slightly. This manual will be updated with the new (slightly improved) specifications when stock supplied with the new firmware has had sufficient time to enter the market. Contact your BYD distributor for further information about this. There has been a firmware revision for the BYD battery modules and BMU that improves cold weather performance slightly. This manual will be updated with the new (slightly improved) specifications when stock supplied with the new firmware has had sufficient time to enter the market. Contact your BYD distributor for further information about this.
  
-=== 10.4 Self-Startup from Low voltage shutdown modes === 
- 
-In a correctly configured system, the inverter will shut itself down before the batteries enter a self protective shut down state. ​ 
- 
-If your system is supplied only with AC-bus solar charging, this may prevent the solar inverter from starting up to recharge the batteries. Therefore it is strongly recommended that there is also either a generator or DC MPPT charge controller to provide DC bus power to bring the inverter back online to allow normal recharging to resume. ​ 
- 
-Even a single 100/20 48V MPPT charger unit with 2 x 60 cell solar panels would be sufficient to add this self correcting mechanism able to maintain the DC bus voltage and improve longterm system reliability considerably from accidental deep discharge and subsequent shut down.  
  
 ===== 11. Legacy systems using allow-to-charge and allow-to-discharge contacts ===== ===== 11. Legacy systems using allow-to-charge and allow-to-discharge contacts =====
battery_compatibility/byd_b-box.txt · Last modified: 2020-03-19 16:34 by guy_stewart