On Nov 13, 7:50*am, "JT" wrote:
"Scott Dickson" wrote in message

...

I now have one " cranking " battery, and one regular Car battery in
the boat. Think this is good?
Which should be number one, the " car" battery, or the " cranking "
battery?

What is the difference between a "car" battery and a "cranking" battery? I
believe each are one in the same. If you have a deep cycle and a
car/cranking battery, I would use the car/cranking battery to start the
boat.

I would suggest that you have one battery used for starting all the time and
switch to the other when not running and using accessories. I'm not
completely sure of the application. I would also suggest that you buy a
switch that will allow you to switch to both batteries in case they are both
running low on juice.

http://tinyurl.com/yl52bx4

hth,
JT

The " cranking " battery has more amp output, and longer reserve than
the " car " battery.