"Bryan" wrote in message
et...

" JimH" jimh_osudad@yahooDOT comREMOVETHIS wrote in message
...

"Bryan" wrote in message
t...
I'm thinking of adding a second battery to my 18 foot bowrider. I want
to use one battery for the engine and one for the stereo and lights and
air pump and ...

I don't want to lose my engine starting ability due to a battery that's
been run down using accessories.

My first battery is a Marine/RV Cranking type (I can't read the labeling
to know what it's amp hour rating is).

What type should my second battery be?

Thanks


A deep cycle with decent CCA's.

Care to explain your answer or should I just blindly accept your advice?
; ) Oh yeah, and I don't know what CCA's are or maybe I do, I'm not sure.


You said you will be using the second battery for accessories.....that is
what a deep cycle battery is designed for.

You can also combine engine cranking ability with the accessory draw demands
by purchasing a deep cycle battery with a decent CCA (cold cranking amps)
rating.

I would consider a Group 27 deep cycle battery with as high as CCA's (650
minimum) as you can find.

Good links:

http://www.windsun.com/Batteries/Battery_FAQ.htm

http://www.windsun.com/Batteries/Battery_FAQ.htm