Excellent design. Simple, but study!
I've printed the two battery version and it works great.

Icefreez

works as intended. would love to see a version with enough handle space for gloves.

TomsPropertyCare

tree supports seemed unnecessary here, I wonder if they could have just been smaller traditional supports, but model is great. 

Holder to carry 2 or 4 batteriesAdd supports for the top of the handle&nbsp;