So a few months ago, I stumbled upon a thing at Adafruit.com called a "Charger Doctor" which was really just a Multimeter designed to slip inline with your USB cable. It was $7.50 and I liked it.
We earn commissions from purchases you make using links in our articles. Learn more. Anyone who works on their car should have a multimeter, but they come in handy around the house too. Whether you ...
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