well, i broke down for the first time on tuesday, anchored in the bay, all alone, dark. no juice to get the engine running. i have 2 batteries with a switch, but not knowing how old the batteries are, thinking of just replacing them.<br /><br />20' center console, 150 hp johnson, ff, gps, vhf, spreader lights, cd/radio. i believe its all wired to run off both batteries (nothing is dedicated to just one battery).<br /><br />suggestion on buying 2 new batteries? i don't want to re-wire, just throw them in. never done it, so no idea size, amps, etc.<br /><br />thanks-