|I use this unit in my shack to keep my various gel cells charged and conditioned... from a 2.9AH cell in my Elecraft K2 to a pair of 40AH cells I use for emergency power.|
This little controller works off of any DC power supply that can put out at least 14.5 volts. Mine is usually operated from a Radio Shack 3A PS that I've modified to put out 14.5v. My Micro M+ is built into a little plastic project box, with a 2.5mm coaxial DC input power jack, and two banana plugs for output power (color coded).
I can run this charger from a solar panel, a cigarette lighter (most auto alternators put out more than 14.5v when they detect a voltage drop), my RS power supply, or a modified 2A Toshiba Libretto power supply, so I can use it to charge my batteries anywhere.
I haven't found a better battery charger for the price.