Most of us use this device on A/C, so to prevent the battery from unnecessarily wearing out, [ the battery inside should be disconnected or fully charged ] and then bypassed.
Request: The fan’s adaptive behavior should be applied to A/C only mode instead of only being applied during battery mode.
Currently the fan speeds will only be adaptive when in battery mode. In A/C mode it spins at full speed all the time.
Related: Fan + ac adaptor