For years I have used a 12VDC to 120VAC inverter to charge laptops in my cars and at home. The inverter worked well to power a regular PSU and took 2-3 hours to fully charge. The inverter was causing interference that disrupted FM/TV and ham radio reception, so we tried to remember to charge it overnight. I love this 12V DC input power supply! Charges laptops twice as fast and no longer interferes with radios and TVs! Why didn't I buy one of these years ago!
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