Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 11-04-2016, 10:22   #1
Registered User

Join Date: Nov 2015
Location: Portland maine
Boat: 1986 Catalina 27
Posts: 84
Images: 3
Replace A Starting Battery With A Deep Cycle

My cat 27 has a two battery bank and while i was poking around I noticed that both of them are starting battery. They look new, but should I replace one of them with a new deep cycle battery? Should i keep a starting battery for my M-18 and replace one with a deepcycle for the house? The electrical all works fine with the starting battery, but i do notice that they die very quickly. Is that normal?
__________________

__________________
Sailuke is offline   Reply With Quote
Old 11-04-2016, 10:25   #2
Moderator
 
a64pilot's Avatar

Cruisers Forum Supporter

Join Date: Oct 2013
Location: Albany Ga.
Boat: Island Packet 38
Posts: 17,059
Re: replace a starting battery with a deep cycle

I'd run them until they were dead, then replace them both with deep cycle's.
Unless you have a massive motor, I don't see any use for a starting battery, but a deep cycle can become part of the house bank if you desire.
__________________

__________________
a64pilot is online now   Reply With Quote
Old 11-04-2016, 11:41   #3
cruiser

Join Date: Feb 2008
Location: North Charleston, SC
Boat: Camano Troll
Posts: 4,669
Re: replace a starting battery with a deep cycle

Quote:
Originally Posted by Sailuke View Post
My cat 27 has a two battery bank and while i was poking around I noticed that both of them are starting battery. They look new, but should I replace one of them with a new deep cycle battery? Should i keep a starting battery for my M-18 and replace one with a deepcycle for the house? The electrical all works fine with the starting battery, but i do notice that they die very quickly. Is that normal?
Yes, it is normal. You will get better performance for electrical loads from deep cycle batteries.

In most cases, a deep cycle battery will work fine for engine starting.
__________________
rwidman is offline   Reply With Quote
Old 13-04-2016, 11:33   #4
Registered User
 
Stu Jackson's Avatar

Join Date: Jan 2011
Location: Cowichan Bay, BC (Maple Bay Marina)
Posts: 6,389
Re: replace a starting battery with a deep cycle

Ron and a64 are right. Start batteries don't work well with deep cycle loads.

None of us were born electricians.

If you want to learn, here's a list of links for you:

Electrical Systems 101 Electrical Systems 101
__________________
Stu Jackson
Catalina 34 #224 (1986) C34IA Secretary
Cowichan Bay, BC, (Maple Bay Marina) SR/FK, M25, Rocna 10 (22#) (NZ model)
Stu Jackson is offline   Reply With Quote
Reply

Tags
battery

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Windlass Battery - deep cycle or starting? rha9 Anchoring & Mooring 77 25-02-2016 13:10
Deep Cycle Battery Gassing Pelagic Electrical: Batteries, Generators & Solar 23 19-05-2014 15:00
Care of Lead Acid Deep Cycle 6VDC Battery VA2NOD Electrical: Batteries, Generators & Solar 8 24-02-2010 01:28
Ading Batteries/Starting from Deep Cycle witzgall Electrical: Batteries, Generators & Solar 4 19-08-2008 11:02
Deep Cycle Battery Choices (from China) Pelagic Electrical: Batteries, Generators & Solar 0 10-12-2007 14:40



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 13:53.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.