[sano2]

Hello Zac,

I have got many UPS boards, in this case I used this one:

https://www.aliexpress.com/item/40011051...1802L0kPRv

I recommended this product. Out 12V, you must use DC to DC step down module from 12V to ... 5V or other. For this I was using this DC Step Down converter: 
https://www.aliexpress.com/item/10050035...1802L0kPRv
It is adjustable 

The idea is very simple, when you need to move the display to another socket, it does not turn off and lasts for a while.

I will upgrade design, DC connector replace to this:

https://www.aliexpress.com/item/10050042...1802Lcj1Gt

Sano