Firmware archive for Marstek Venus E, Venus D, Venus A, Saturn/B2500 & CT002 — original OTA firmware downloads with release notes (EN/DE), SHA-256 checksums and changelogs
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Updated
Oct 15, 2026 - JavaScript
Firmware archive for Marstek Venus E, Venus D, Venus A, Saturn/B2500 & CT002 — original OTA firmware downloads with release notes (EN/DE), SHA-256 checksums and changelogs
Run a Marstek Venus battery without the cloud. Self-hosted container that answers the telemetry upload locally — stopping the firmware's 30-minute network resets that break Modbus TCP and Home Assistant.
Marstek Venus (E / E 3.0) Batteriesteuerung fuer Home Assistant: Nulleinspeisung ueber WLAN (Open API) oder Modbus, Dashboard, Ein-Befehl-Installer. Zero-export control for Marstek Venus batteries in Home Assistant.
SLEMS is a Home Assistant integration that manages home batteries and controllable consumers.
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