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  Outboard has Charging Cables - Interference??

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Author Topic:   Outboard has Charging Cables - Interference??
macsfriended posted 05-12-2006 01:38 PM ET (US)   Profile for macsfriended   Send Email to macsfriended  
Ahoy Sparky's

My BW 13 inland fishing boat has a pull start 6 hp o/b with battery charging cables and 2 batteries (sometimes) to a typical 1-2-both-off battery switch. The battery switch common (boat side) feeds a Blue Sea 5025 fuse block with separate circuits for lights, fishfinder, marine vhf, 12 volt recepacle, and horn. OK if that charge cable + connects to the common (boat side) of the battery switch or is there practical risk of interference to the radio or fishfinder???

Any experiances/thoughts???
Thanks, Ed

Chuck Tribolet posted 05-12-2006 03:24 PM ET (US)     Profile for Chuck Tribolet  Send Email to Chuck Tribolet     
If the charge cable is attached to the common side of the
switch, and you ever set the switch to OFF with the engine
running, the voltage may go high and you may fry your

Isn't the more usual way to wire one of those: common to the
motor, and wire the electronics to one of the batteries.

Two batteries with a pull-start 6HP is overkill, unless you
have an electric trolling motor, and then maybe it still is.


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