So why bother with two batteries and the extra wiring ... dual-battery kit with a relay or some other type of isolator becomes necessary. Our isolator of choice? The Power-Gate from Perfect Switch.

A multiple-battery system’s best attribute may be the ability to provide engine starting should one battery short out, experience a wiring failure or simply get ... For most boaters, a pair of ...

A lead-acid battery steadily declines in ... to the trolling motor with a circuit-breaker switch in the red positive line. Forgo that circuit breaker at your peril, but be certain it is off during the ...