18650 Lithium Powered XU3 Tablet/Computer

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18650 Lithium Powered XU3 Tablet/Computer

Unread postby compulsivecoder » Mon Nov 13, 2017 10:09 am

I previously posted about the DIY portable computer I built here:
viewtopic.php?f=98&t=25789

While it was a useful setup it was far more heavy than I wanted. So I began searching for a way to use 18650 cells to power it.
It took me a long time to find the solution but finally it works.

Considering it's a complete overhaul and that it's a major improvement I figure it's worth a new thread.

Tablet mode:
tabletmode.jpg
tabletmode.jpg (97.8 KiB) Viewed 338 times


Desktop mode:
desktopmode.jpg
desktopmode.jpg (112.32 KiB) Viewed 338 times

The SLA battery in the photo acts as a secondary power supply and charges the 18650 batteries when it's docked in desktop mode.

Inside:
insideclose-800x800.jpg
insideclose-800x800.jpg (114.28 KiB) Viewed 338 times


2S2P battery pack:
batterypackdone-640x640.jpg
batterypackdone-640x640.jpg (66.59 KiB) Viewed 338 times


I've posted more info about it here:
https://compulsivecoder.github.io/DIYComputing/

The solution for the 2S battery pack came from here:
https://www.youtube.com/watch?v=wdXMs8uH8uo
http://www.mtechshow.com/
compulsivecoder
 
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