Dummy Battery Canon LP-E17

This is a dummy/insert battery for my Canon EOS 750D that uses a LP-E17 battery. It can be used to power the camera with mains electricity or from a battery (12V lead-acid in my case) by using the XL4015 DC-DC converter. Follow the specs of the converter for the input and set the output at around 7.2V.

The box for the converter was designed by McDoS: https://www.thingiverse.com/thing:2808246

As you can see I had some filament issues so the print is not a beauty but it works fine.

I measured the dimensions and copied the shape, but making it hollow to fit wires. The battery has a +, -, Thermistor & Data pin connection. Only + and - need to be connected to 7.2V. I did this by scissoring some alluminium strips from some scrap I had laying around and mounted it on the correct pinholes, but there are many more ways you can come with to do it.

The camera then asks whether it is a canon battery: choose no. Then it asks whether you want to continue using the battery and then pres