Unfortunately the only chargers Hanatora offers for the mini 4k are fairly crude and don't have a storage setting option.
This is a desirable feature because the mini 4k uses HV lipos which are more prone to degradation when not stored at the proper voltage. Since DJI does not sell spare batteries for this drone in the US, it would be nice to make them last.
Others have used adapters as seen here
Also since I already own several very capable chargers for my fixed wing aircraft the idea of purchasing another unit just to deal with this proprietary crap makes my teeth hurt.
I'm currently unable to find an adapter and the only solution seems to be buying something like this
and then cutting off one of the leads and soldering on banana plugs or an xt60 to work with my B6AC or ToolKit M8S