Erik you will get a much longer life out of an Alton than a Miller plus it will be 12V and a lot more WATTAGE.
With a permanent magnet alternator it produces the same amount of electricity all the time so when the battery has recuperated, indication that the amp meter is returning to zero switch on headted handle bar grips, seat heater, lights & don't forget the blue LED's for self preservation, sorry German vehicles not allowed blue. Using the power reduces work load of the regulator / controller. This