A small case for a TP4056 Battery charger.

If you print it in PLA I recomment using some superglue to keep it closed. PLA warps over time when it’s under pressure so a friction fit will quickly become loose. Or use PETG, then it should be fine over time.

The cable hole can be adjusted to fit your cables. Just change the size of the modifier on both parts.

The Shell in the pictures is printed with a 0.2mm nozzle, however it is printable with a 0.4mm nozzle. You'll just see tiny pockets between the holes.

The holes were supposed to be hexagons, but came out more as circles because they were too small, however I like the size of the holes so I won't change the shape.

How to use a TP4056 as a charger:

Just solder a JST connector that fits your battery (generally 1.25mm) to the board, red to B+ and black to B-.

If you solder the wires so they point towards each other instead of straight out it'll fit in the case a bit better.

Always check the voltage of your board before plugging in a battery just to make sure your board isn't shot and it's not outputting over 4.2V

I made this to charge my wearable Arc Reactor, check that project out here