Marstek Battery Connector

The Marstek Battery Connector app integrates your Marstek home battery with Homey. It allows you to monitor the state of charge, track charging and discharging power, view total energy flow, and use battery data in Homey Flows to automate your smart home. The app can connect directly to your battery over the local network or, if preferred, through the Marstek cloud service using your cloud account credentials. NOTE: No Modbus or MQTT connection is needed. The app uses the battery's built-in LAN interface. Features The app supports automatic discovery of your Marstek battery on the local network and can also log in to the Marstek cloud to monitor batteries that are not reachable over LAN. It provides real time updates of charge level and power usage. Battery data can be used in Homey Flows to automate your smart home. Installation and Setup 1) Install the app from the Homey App Store. 2) Start the pairing wizard in Homey by adding a new device from the Marstek Battery Connector. 3) Choose between the local API driver or the cloud driver: - Local: the app will scan your local network to discover your Marstek battery (if not found, retry once more). - Cloud: sign in with your Marstek cloud/app username and password, then select the site/device you want to add. 4) Once added, the device tile will display the battery charge level in percent, the current power in watts, and the total energy in kilowatt hours. Usage in Flows Battery data can be used in Flows as triggers and conditions. For example, create a Flow that turns on an appliance when the battery state of charge is above 80 percent. Charging is represented by positive power values, discharging is represented by negative power values. Notes For local API usage the battery must be connected to the same local network as Homey. For the cloud driver you only need a valid Marstek cloud account. Multiple batteries can be paired if they are on the same network or assigned to your cloud account. Power values follow Homey convention. Positive values mean charging or consuming power. Negative values mean discharging or supplying power. Support If you encounter issues, first check that your battery is online and connected to the same LAN as Homey. Restart the app from Homey App Settings if necessary. For further assistance, contact the developer through the Homey Community Form link on bottom of App page.