In their project, [Septillion] and [Hugatry] use a 3.3 V Arduino Pro Mini to talk to the charger in question through a small circuit consisting of a few resistors and diodes. The QC2.0 device ...

More than half the cost of a new DC Fast Charger is wrapped up in a single safety circuit. Experts say that could change.

Don’t even know whether it’s AC or DC? Just hook up the alligator clips and let the Vampire Charger figure it out; when the light is green, the power’s clean. The Vampire Charger was ...

The cause is a damaged onboard 12-volt battery charger ... charger with an integrated DC-to-DC converter (OCDC). This can cause electromigration on the circuit board due to insufficient protective ...