Sonoff SNZB-03 AA Battery Enclosure (Mod for Extreme Battery Life)
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Case to convert your Sonoff SNZB-03 to 2x AA batteries.
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- Creative Commons — Attribution — Noncommercial
Annoyed by constant battery changes on your Sonoff SNZB-03 motion sensor? The standard coin cells drain way too fast. This 3D-printed replacement housing solves the problem once and for all!
With this mod, you can convert the motion sensor to run on two standard AA batteries. The result is a massively extended battery life (often lasting several years) and less e-waste from expensive coin cell batteries.
🌟 Features
Extreme battery life: Forget about constantly swapping out CR2450 coin cells.
Cost-effective operation: Uses cheap, standard AA batteries or rechargeables.
Perfect fit: Specifically designed to house the original Sonoff SNZB-03
🛠 Bill of Materials (BOM)
In addition to the 3D-printed parts, you will need a few standard components:
1x The Sonoff SNZB-03 motion sensor
2x AA batteries
4x AA battery contacts/terminals (2x with a spring for the negative pole, 2x flat for the positive pole)
A short piece of wire (2 cores, e.g., red and black)
Basic tools: Soldering iron, solder, and super glue (optional, to secure the contacts if needed)
⚠ Disclaimer: This modification is done at your own risk. Soldering onto the PCB will void the manufacturer's warranty of your Sonoff sensor.
The lid is not perfectly made tbh. u can see that on the pictures, i will adjust it somewhen, but it does its job.
I also cut the edges of the sonoff case a bit, since they have some kind of a little bumps there.
Used AI to write the desciption :)