Elco Charging Systems Elco specified chargers provide the proper algorithm to optimize recharging times. When combined with Elco's control system they maintain the battery bank in float mode maximizing performance, reliability and battery life. Now, as we approach the end of this century, Elco, using new technology, has redesigned and reintroduced quiet, clean electric motor boats and electric drives for boats and sailboats as the environmental alternative to complicated, noisy, air and water polluting diesel and gasoline internal combustion engines. The iron spokes are the problem. I tried a compass years ago but found that when I turned the steering wheel, the compass moved - and not necessarily in the proper direction.
Operation is simple and power is from AA penlight batteries.
There is plenty of room for waypoints to your favorite cruising spots and the screen is backlit so you can use it at night without holding a flashlight in your lap.