roly_voya
New member
Anyone know if marine battery chargers (mine is sterling 40a) provide galvanic isolation between 230v earth and 12v neg. Need to know weather I can connect the charger before the isolation transformer. The reason is that with a low power dock supply the surge current to the transformer trips the dock RCD /forums/images/graemlins/frown.gif but if I can cut out the transformer and just leave the charger connected I can use power from the inverter and have the dock supply recharging the batteries /forums/images/graemlins/ooo.gif - but not if it's at the expence of frying the zinc/underwater fittings /forums/images/graemlins/blush.gif