ESP32-S3 EBC battery tester with offline charts, SD SQLite, MariaDB backup, DCIR and manual OTA
mqtt ui solar sqlite3 user-interface home-assistant data-logger battery-capacity-tester lifepo4 internal-resistance esp32-s3 zketech battery-capacity no-pc ebc-a40l ebc-a20 ebc-a50l
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Updated
Nov 13, 2026 - C++