As one charge last quiet a while and I don't want the battery packs to be always pushed to 100%. I combined these two models to make a non-charging stand to add on top of the charging base. The bottom part has a tight fit while the top part holds the toothbrush well but still easy removable.

Printed with supports on buildplate only. To make your life easier, put support blocker insinde the tubes that touch the buildplate.