> For the complete documentation index, see [llms.txt](https://docs.voltmasters.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.voltmasters.io/device-integrations/battery-systems/pylontech.md). # Pylontech Our EMS supports utility-scale battery systems from Pylontech. Pylontech specializes in lithium battery storage systems for residential, commercial, and utility-scale applications. The integration connects to the Pylontech LEMS (Local Energy Management System) controller, which presents one or more high-voltage battery racks as a single system. The EMS reads the aggregated state of charge, state of health, voltages, currents, power limits, cell diagnostics, and nominal capacity directly from the LEMS over Modbus TCP. ### Supported devices We support the following Pylontech systems: **LEMS** * **LEMS controller** fronting 1500 V-class battery racks (e.g. **PowerCube-M5A**) The battery is integrated as a standalone BMS device and pairs with a separate PCS (e.g. the [Sinexcel PWS1-1725KTL-H](/device-integrations/battery-systems/sinexcel.md)) for charge and discharge control. ### EMS functionality With the current integration, our EMS enables: * Live monitoring of state of charge, state of health, voltages, currents, and cell temperatures * Charge and discharge power envelopes based on the limits reported by the LEMS * Intelligent charging and discharging of the connected battery through the paired PCS * Peak shaving, load balancing, and demand response * Optimization of solar self-consumption Additional functionality may be added over time as integration capabilities evolve. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.voltmasters.io/device-integrations/battery-systems/pylontech.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.