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Version: v2.1.x-dev 🌜

Supported BMS

Most used BMS​

This are the three most used BMS with this driver.

🥇 JKBMS (68% of all systems)

🥈 Jiabaida JBD BMS (13% of all systems)

🥉 Daly BMS (12% of all systems)

The Daly BMS is not recommended, if you have to buy a new BMS, since it has a bad communication implementation and sometimes it happens that the driver is not able to fetch data for a multiple cycles.

Currently supported​

• ANT BMS​

Disabled by default since driver version v1.0.0 as it causes other issues. More informations can be found in Add other use case (grid meter) or ignore devices - ANT BMS check missing and if it was fixed. See How to enable a disabled BMS to enable the BMS.

• Daly BMS 🥉 Third most used BMS​

Daly has different brands and models on the market, which all share the same communication protocol. Currently there are 3 types:

  • Daly Smart BMS, "the red one", old and classic type with passive 100mA balancer. It has a bad reputation for communication quirks but it seems, if it runs it runs. Not recommended, if you have to buy a new BMS, since it has a bad communication implementation and sometimes it happens that the driver is not able to fetch data for a multiple cycles.
  • 100 balance Smart Active BMS: Daly started a new BMS line with build-in active 1A balancer under this brand. Currently they are rebranded again to daly "blue", see below.
  • Daly Smart Active BMS, "the blue one", is the current and newest model. It has a build-in 1A balancer.

When connecting a Daly BMS, notice that it can be that, despite a connector is available, there is no support for that port compiled in. You have to order your BMS with the correct options, CAN/RS485/RS232/UART/Wifi/BT if you want to use it. So there may be devices that are not capable to communicate. As the RS485 port is slow, it is recommended to use the CAN port.

• Daren BMS​

DR-JC03, DR48100JC-03-V2, using the DR-1363 protocol. Tested with multiple packs on one RS485 USB-adapter.

More informations about the BMS and its protocol can be found here.

• ECS GreenMeter with LiPro​

• EG4 LiFePOWER​

Works also for:

|- Revov​

|- Tian Power​

• EG4 LL​

• Felicity Solar​

• KS48100​

|- Bemory​

|- CERRNSS​

|- PAPool​

|- VoltPolska​

• Litime BMS​

Works also for:

|- Power Queen​

|- Redodo​

• Heltec Modbus SmartBMS / YanYang BMS​

Communication to the Heltec SmartBMS (which is a rebranded YYBMS) via Modbus/RS485.

• HLPdata BMS4S​

• Jiabaida JBD BMS 🥈 Second most used BMS​

Works also for:

|- LLT Power​

|- Overkill Solar​

|- Smart BMS​

|- Other BMS that use the Xiaoxiang phone app​

• JKBMS 🥇 Most used BMS​

Works also for:

|- Heltec BMS​

• JKBMS PB Model (also know as JK Inverter BMS)​

• Kilovault​

It's used in Kilovault HLX+ batteries. These were popular and imported by AltEStore, but Kilovault is out of business. OEM was Topband

• MNB spi BMS​

Disabled by default as it requires additional manual steps to install.

• Pace BMS​

• Renogy BMS​

• RV-C House battery​

This driver supports the main house battery of RV-C protocol

• Seplos​

So far only tested on version 16E.

• Seplos v3​

Works for the Seplos v3 BMS which uses different (Modbus) protocol than the earlier Seplos models.

• Sinowealth​

Disabled by default since driver version v0.14.0 as it causes other issues. See How to enable a disabled BMS to enable the BMS.

• Valence U-BMS​

So far only tested together with 12V (4 cell) modules, i.e. https://www.valence.com/stackable-modules-12-819v/u27-12xp. 6 cell modules might require adaptations.

AndroidiOS
Xiaoxian appXiaoxian app

Planned support​

You can view the current BMS requests to see which BMS support is requested and vote for the BMS you want to be supported.

Add/Request new BMS​

There are two possibilities to add a new BMS.

Add by opening a pull request​

Fork the repository and use the battery_template.py as template to add a new battery. As soon as the BMS works you can open a pull request (PR) to merge it.

Here is a short checklist that should help you:

  • 🚨 Make sure the GitHub Actions run fine in your repository. In order to make the GitHub Actions run please select in your repository settings under Actions -> General -> Actions permissions the option Allow all actions and reusable workflows. Check also in your repository settings under Actions -> General -> Workflow permissions if Read and write permissions are selected. After this changes you have to make a new commit, if you don't see any Actions run. This will check your code for Flake8 and Black Lint errors. Here is a short instruction on how to set up Flake8 and Black Lint checks in VS Code. This will save you a lot of time.
  • Add your battery class and battery class import in alphabetical order in the etc/dbus-serialbattery/dbus-serialbattery.py
  • Add your BMS to the BMS feature comparison page by editing docs/general/features.md
  • Add your BMS to the Supported BMS page by editing docs/general/supported-bms.md
  • Do not import wildcards *
  • If available populate self.max_battery_charge_current and self.max_battery_discharge_current with values read from the BMS
  • If available populate self.unique_identifier with a unique value to distinguish the BMS in a multiple battery setup
  • If your BMS don't run with the default settings add installation notes to the How to install, update, disable, enable and uninstall docs/general/install.md
  • If your BMS needs custom settings that the user should be able to change, add it below the ; --------- BMS specific settings --------- section in the etc/dbus-serialbattery/config.default.ini
  • Add the new BMS to the available BMS list under ; --------- Additional settings --------- in the config.default.ini
  • Add an entry to the CHANGELOG.md
  • Add an entry in the issue template bug_report.yml under id: bms_type
  • Add an entry in the issue template support_request.yml under id: bms_type

Request by opening a discussion​

Start a new discussion in the New BMS request category. Please add also the protocol documentation which you can request from the manufacturer/seller. The more upvotes the BMS request has, the higher is the priority.

If you would like to donate hardware or would like to help testing a specific BMS please get in contact over the discussions section.