Marine battery requirements?

[GMB]

I have a fishing boat with (2) 'fish finders' (sonar units), 1
trolling motor, lights/live well, and an electric start outboard
motor. I have estimated the amp draw requirements as follows:

(2) sonar units = 1 amp (total) x 10 hours = 10 amp hours
(1) trolling motor = 34 amps x 6 hours at 100% throttle = 204 amp
hours
misc lights and live well = 3 amps x 5 hours = 15 amp hours
electric start for outboard motor = 1 amp hour estimate
TOTAL REQUIRED AMP HOURS = 230 AMP HOURS (liberal estimate.. may get
by with 195-200)

I have 2 batteries....

Battery #1:
Interstate Marine/RV cranking battery
Part #24M-RD
400 CCA
500 MCA

Battery #2:
EverStart Marine/RV Deep Cycle battery (Johnson controls battery group
thru Walmart)
Amp Hours = 95
Marine Cranking Amps = 625
Cold Cranking Amps = 500
Reserve Capacity = 125
Part #24DC-6

What would be the best way to hook up this system? I don't want to
take on a 3rd battery for weight reasons. Would it be possible to
hook these batteries in parallel, or would I get interference between
components if everything was run off the same pair of batteries? If
these batteries need to be resized, what size battery would be best
suited for my required amp draw?

Any advice would be appreciated...... Please E-Mail.

Thanks.... GMB

[DCP]

A good book that answers all thoes questions is Boatowner's Illustrated
Hand Book of Wiring BY Charlie Wing also answers a lot of other
questions needed by a serious boat owner. Like why Electrolysis and an
entire chapter on battery care. DCP

In article <3562374d...@news.pitnet.net>, gbe...@pitnet.net
says...

[Dan]

>
>In article <3562374d...@news.pitnet.net>, gbe...@pitnet.net
>says...
>>
>>I have a fishing boat with (2) 'fish finders' (sonar units), 1
>>trolling motor, lights/live well, and an electric start outboard
>>motor.

Put the larger output battery on the trolling motor and fish finders, the
other on lights, live well and outboard motor. If the battery for the
trolling motor runs out of power, at least you will be able to start your
main engine to go home. The lights and starter are the essential components
while the other goodies are not life threatening if they are not operating.