You are here

Ultra-compact Battery "Box"

3 posts / 0 new
Last post
kc8ufv
kc8ufv's picture
Ultra-compact Battery "Box"

I needed to get another power supply for my nodes for an upcoming event. I've got a yard trimmer that takes 20V Li-Ion batteries. Also, had an extra charger that was bad for those batteries (I've got a couple spare batteries), so decided to take my spare POE switch and one of the batteries to make a seperate battery box. All I did was harvest 2 contacts and the bottom half of the shell from the bad charger, checked the power pins with a DMM to double check polarity, and wire those to the power connector on the switch. This perticular switch had a couple spare pins next to the coaxial connector. The white plastic on there is Shapelock, which I used mostly as a glue to hold it together. 

First two links are to pics of the completed unit. 
https://drive.google.com/file/d/1-VrQClUTGlpCeNiXfHR3biCQTMGp65UX/view?u...
https://drive.google.com/file/d/1IUp7YajV6SBhgzXd_fUGCNixeJiLmg5Y/view?u...

This is the switch I used in this project:
https://www.aliexpress.com/item/32799832052.html

AB7PA
Clever idea

Chrissy, that's a clever idea for reusing things you have around the shack.  Kudos!

kc8ufv
kc8ufv's picture
Thanks. And it's also got the

Thanks. And it's also got the benefit of no conversion loss.

Theme by Danetsoft and Danang Probo Sayekti inspired by Maksimer