Review on AIMS Power CON120AC1224DC AC Converter & Battery 12V or 24V Smart Charger 75 amps UL 458 & CSA Listed by Temarquis Lopez

After studying the specs and doing a little calculation I suspected that this switching converter has active power factor correction which most other chargers don't have. I dared and I'm glad I did. The power factor of this device is 0.94 or more. That means if you're running on solar power from a generator or from the grid, it's just as efficient as them. Most other switching converters have a power factor of 0.72, which means you need to put 10 amps at 120 volts (1200 watts) across them to produce a 781 watt (55 amp) charge for your batteries. Where you would normally waste over 300W with most other converters/chargers, you don't have that problem with this charger. As for the fan, the device I received has a two-speed fan, low when the charging current is low, and full. when charging at higher levels. It's not very loud for me and I'm very happy with it. The seller should really update their page to state that it is a PFC converter/charger. It's worth every penny.