Pictures/Board:
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Battery Info:
Due to the dual PMIC architecture, the charging time is very slow when the battery is fully discharged. Therefore, a specially designed USB charging cable is provided with the device for faster charging. Connecting both the type-C plug and Type-A plug to the OGU ports maximizes the charging rate.
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Block Diagram:
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WIKI
https://wiki.odroid.com/odroid_go_ultra/odroid_go_ultra