A few months ago, someone clued us in on a neat little programmable power supply from the usual Chinese retailers. The DPS5005 is a programmable power supply that takes power from a big AC to DC wa… ...

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By itself, the Ryobi 18V ONE+ 150-watt Power Source at $49 MSRP sans battery, isn't much more than a bright green and black paper weight. However, attaching a 4Ah Ryobi 18V ONE+ battery allows it ...