DVR Improvement
thingiverse
I got this Amazon product: https://www.amazon.com/gp/product/B01HGAWWDE/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1. I needed to upgrade it and fix one major issue - the SD card is hard to release due to the enclosure's design. As a designer, hobbyist, and HAM radio technician with access to a 3D printer, I came up with a custom enclosure that holds 18 lithium-ion batteries, each with a capacity of 6000 milliamps at 4.2 volts. This combination gives me approximately 9 hours of use before needing to recharge - maybe a bit excessive, but it's definitely impressive.
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