Volt-Seeker Battery Combiner
$240; www.wellsmarinetech.com
Batteries need serious juice to start your boat’s engines. The Volt-Seeker Battery Combiner from Wells Marine Technology charges all onboard batteries when the engines are running. After you shut down, the unit isolates the start battery. If that battery fails to start the engine, an emergency switch can draw on all the batteries to get the job done.
