Marty S. wrote:
I've checked the voltage and either battery by itself reads 12 volts when
hooked up in series, and they are 24 together. However, is there an issue
of amps or watts or current or whatever else flows in the wires? The fish
finder draws about 110 milliamps (whatever that is)... Will it burn out or
crack or implode or fizz out or whatever? (as you can tell, I didn't spend
a whole lot of time paying attention in 7th grade electrical shop)


110 Milliamps (0.110 amps per hour current flow) is what your finder
draws at 12 volts. if you made the mistake and hooked it up to both
batteries (24 volts) then it would draw 210 milliamps, burning out your
finder, then increasing the amp draw even more as wire's insulation
melts, and wires short out to each other) . or at least blowing the fuze.
As long as your hooked to the Positive and negative of the same battery
you have nothing to worry about, your finder is wired up correctly, that
is if your circuit is not grounded to the boat, and all fish finders I
know of are not, they have a floating circuit (both Positive and
negative wires go to the finder)
--
Rodney Long,
Inventor of the Long Shot "WIGGLE" rig, SpecTastic Thread
Boomerang Fishing Pro. ,Stand Out Hooks ,Stand Out Lures,
Mojo's Rock Hopper & Rig Saver weights, Decoy Activator
and the EZKnot http://www.ezknot.com