Canon EOS 350D battery adapter
thingiverse
This adapter allows you powering your Canon EOS 350D from a common 12 V DC power supply (1 A or more). The adapter is designed for inserting a small [DC/DC step-down regulator module from Aliexpress](https://goo.gl/oruJWy) into the battery hole of the camera. The output voltage must be adjusted to 7.4 V. I made the contact plates by cutting a small rectangle from a blank PCB and making two gaps in it with a cutter knife. I have soldered two cables between the module and the contacts. Everything is glued with cyanocrylate and hot glue. See the attached photos for reference.
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