M Series = Marine or Motor Home

These chargers have a few small changes over the XS series and they are refered to by the power rating in watts ie. 200W = 15Amp and 300W = 25A.

The M200 & M300 come with 8.4mm eyelets instead of alligator clips on the end of the DC power cable. Secondly these two units also have night mode for silent charging at night time - when you select the night mode. This mode derates the current charging the batteries which in-turn means the unit doesn't get so hot and therefore doesn't need the internal fan running. The night mode comes at the cost of removing the Recond mode from the chargers.

The M300 series charger is also bundled with what's essentially an XS800 for not much more than the cost of the one 25 amp charger.