Have 3 devices to power

1. Blackmagic pocket cinema camera 4k
Voltage range: 12-20v
Max watts: 22w
2. 2200 nit external monitor
Voltage range: 12-24v
Max watts: 16w
3. Tilta nucleus nano follow focus motor
Voltage range: 5-18v

Wanting to use my surplus of m18 fuel batteries instead of v mount solutions.
Have a 3d printer ready to print the housing and battery adapter but need component dimensions to model around. I need the voltage down from 20.5v fresh off of the charger, to a safe 17.5 -17.8v. As well as an over discharge protection of sorts. Would like to remain as compact as possible without sacrificing usability and safety. I will be making a fun video of the outcome of this project and will gladly credit anyone who can lend some knowledge. Most interested in buck converter and over-discharge component recommendations that fit the required draw and are not overly large. Simple soldering is the extent of my small electronics knowledge.

Thanks in advance,
Mike

 

Update:

Going to try an XL4015 board for a test sample of the battery plate. Still unsure about over discharge protection. I can't seem to find much solid information about the ones that fit the size requirements. Any links or leads would be appreciated.

Thanks,
Mike

 

Update:

Going to try an XL4015 board for a test sample of the battery plate. Still unsure about over discharge protection. I can't seem to find much solid information about the ones that fit the size requirements. Any links or leads would be appreciated.

Thanks,
Mike

Hello Mike,

This is my first time on All About Circuits...

I am an independent filmmaker and graduating student, looking for innovative and unique ways to expand my gearset economically. I got curious to see if anyone has thought of a Milwaukee to V-Mount adapter solution and you were the first concrete result I could find. I think your idea is amazing and am curious if you have any progress or prototypes to share!

Let me know if/when you post a video. This is fascinating to me!

Best,

Wes Brown