Starting Series

In the starting mode, a gas or diesel marine engine (inboard, outboard or auxiliary type) places a demand for high amperage, or starting current, to "crank the engine" up to starting RPM. This high starting current must be delivered quickly and for as long as thirty seconds at a time, month after month after month. Otherwise, the engine cranks too slowly and may not start at all... especially if the battery has been sitting for long periods, is extremely hot, or has been drained by an auxiliary load, or the engine is in an untuned condition. In any event, you can't start. All you can do is float.