I have the dji focus system and i want to know if i should take the battery out of the unit when i store it for long periods of time, i do the same with my other dji batterys, keeping them at 40% when stored, but when i do that with my dji focus the battery drops overtime due to being conected inside, so should i take it out?

I answered you inquiry in your duplicate post:

http://forum.dji.com/thread-57906-1-1.html

Please keep in mind that you should only have one thread open per issue, so that answers are not unncecessarily repeated.