Battery strap for BetaFPV Meteor 75 75pro frame

Since the battery holder was very tight fitting and I didn't want to deform my batteries I created a battery strap to replace the battery holder for the BetaFPV Meteor 75 and 75pro frame.  You'll have to clip off the original plastic cage. A couple pictures for reference.

The strap can hold 450+mah sized batteries and also the 300mah stick shaped batteries.

It has built in support, but if the tolerances on your machine are not good just separate the file and create your own supports via the slicer. 

UPDATE: 
Updated so the straps only can use 450mah shaped batteries. This latest iteration does not hold the stick batteries.

Added a lighter version reduces the weight by quite a bit. Choose the width you want the strap to be, it ranges from 1.5 to 4.5mm. The shortest width can weight about 1.5mm = 0.39g and 5.5mm = 0.6g and the original weighing 0.87g.