Was looking for a 3 battery holder because I got a little fed up with the charger/holder draining the batteries to fast for just using it as storage in my travel case.
When looking for a solution, I came across Mazaq1's one battery holder and combined it in a 3X holder version that also fits travel cases that have a cutout for the original DJI charger.
mini_3-4_pro_battery_case_3x.stl | 230.4KB |