Double Battery Case

thingiverse

This is a straightforward case involving 2 Samsung Galaxy S4 Batteries. A 2mm thick Plate is inserted between the batteries. As evident from the photos, I have soldered the connections in Parallel to yield 3.7v and 5,200mAh for a project. Update: I've finally completed my project with this as the final piece. There's just enough space inside the box for the cables to be knotted on the inner side of the cable path, providing added durability when cables are pulled from the outside. You can see that I used quite a bit of hot glue to prevent metal-to-metal connections at the top of the batteries. Again, I utilized a drill and crafting knives to cut out the cable path. I also had to make some adjustments on the tabs for the lid to close correctly. The openings on the bottom printed slightly narrower than intended.