In rec.boats 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)

Shouldn't be a problem connecting across one battery. Especially given
that the fish finder only draws 110 mA.

b.