Thanks for this design. I like the sturdy clips and in fact they were the number 1 reason I decided to give this a try. I keep breaking the cheap battery packs, again and again. It has gotten to the point where I won't buy them anymore. Even if I try to repair them, the plastic can't withstand the temperatures of even just a quick application with the soldering iron. PLA, on the other hand, has no issues with this provided you don't touch it directly. So...good quality clips plus a nice thick PLA print and the freedom to use better quality wire? Yay!
The only thing this needs is a cover. The clips do a fantastic job of holding the batteries in but I would still rather have a cover as well. Even just from an esthetic point of view, a cover is nice.