Wyze Sense AA Battery Holder Mount

thingiverse

I got tired of replacing the tiny batteries on the wyze sense, so I bought some AA sized 3.2V LiFePO4 batteries and some AA holders. I soldered the holders to my battery tabs, melted a small hole in the side of the case for the wires to pass through, and now my wyze senses have a rechargeable 600mAh battery. This is the case that I designed for it. The case has screw holes, or you can use a couple adhesive strips to hold it to a surface. The lid snaps in tightly, you may need to use a flush cutter to nibble off the very corners of the lid to get it to fit. There is a lightpipe hole in the lid so that if you print with a dark plastic you should still be able to see the led blink on the wyze sense. The lid can be pulled off relatively easily to change the battery. There are some slight indentations on the narrow sides of the case that are big enough to slip a fingernail into. You only need to print out one of the lid files, the only difference is what direction the word wyze faces. The Images of the one I printed is the default direction. When you are soldering the wires to they wyze battery tab, the + (red) wire goes to the outer spring, and the - (black) wire goes to the center contact. These batteries do not have short circuit protection, so it is a good idea to cover the battery contacts inside the wyze with hot glue, to act as both strain relief and to prevent short circuits. When making the hole in the side of the case for the wires to exit, try to place it directly under the existing reset hole. This lines up with the wire path in the case. The wires for the battery holders should fit snugly into the gap next to the battery holder. [lid installation gif](https://imgur.com/Y5TvshT)