Battery cut out switch.

[jurgenscraft]

Even though my boat's wiring is in good order and all circuits are fused, I would like to fit a battery cut out switch in the possative cable, so that, in the event of a electrical problem I can kill all electrical power,has any body tried this out, if so is the possative cable the one to break.Any Ideas would be welcome.<br />kind regards.<br />William Wright.

 

[Boatin Bob]

Re: Battery cut out switch.

Yes a simple battery switch will do that for you like the ones seen on this page here Battery Switches

 

[RubberFrog]

Re: Battery cut out switch.

Don't cut off the battery while the engine is running. Unless you don't like your alternator.<br />George

 

[Silvertip]

Re: Battery cut out switch.

Yes -- the battery cut-out switch is placed in the positive battery cable at the battery.

 

[islandboat]

Re: Battery cut out switch.

It's a good idea to have a battery switch for both single or dual batteries. I keep the auto bildge pump wired to one of the battery "inlet" sides of the switch so that the bildge float switch is always hot and never turned off.

 

[18rabbit]

Re: Battery cut out switch.

Some alternators can benefit from a battery switch that has afd (alt field disconnect). If you alternator isn’t designed for that it may be possible (I’d have to think about this) to use a battery isolator (diode) or battery combiner in conjunction with a battery switch to disconnect a battery from the boat’s electrical while the engine(s) are running without frying the diodes in the alternator as RubberFrog mentions.