If you remove your MINI electric or plug-in hybrid vehicle from the MINI App, the charging history remains stored in the MINI Cloud for your MINI ID for 3 months. If you add your MINI to your MINI ID again in the MINI App within 3 months, the saved charging history data will be displayed in the charging statistics. All interim charging processes will be missing from the charging history.
MINI how-to video: https://youtu.be/kRyLo58whVo