mod a battery backup to add a digital voltage readout and dc output jacks /

A good battery backup is essential whether you have a lot of tech youd like to protect from surges—or just hold running whether the power drops out—but this tutorial from The 8-Bit Guy shows you how to produce yours even more useful. It’s easier than you might think to add some DC outputs, and a voltage readout so you can monitor for surges.
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Source: gawker.com