Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 16-04-2010, 14:07   #1
Registered User

Join Date: Jun 2007
Location: kefalonia ,ionian islands
Boat: Solaris Sunstar 38, Wild Honey
Posts: 149
Images: 1
Adding Another Battery ?

I just bought 2 new 86 a/h batteries as 1 of a pair had failed . while waiting for the new ones I used a spare 55 a/h battery all was fine . now that I have a spare 55/ah battery I wonder if it could be used as in addition to the bank ? a bit more battery power is always good ?
__________________
gramos is offline   Reply With Quote
Old 17-04-2010, 15:10   #2
Commercial Member
 
CharlieJ's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: St. Petersburg, FL
Boat: Gulfstar Long Range Trawler; 53'; BearBoat
Posts: 835
In general, as long as the batteries in the bank are the same chemistry and similar in service life, then there is no problem.

In other words, if your spare battery has been lightly used, and not abused (read sulphated) then, no problem. If, on the other hand, your spare battery has been flailed, beat up, and generally abused during its lifetime, it would not be a good idea to add it to a bank of new batteries.

Charlie
__________________
Charlie Johnson
JTB Marine Corporation
"The Devil is in the details and so is salvation."
CharlieJ is offline   Reply With Quote
Old 17-04-2010, 21:00   #3
Moderator Emeritus
 
Ex-Calif's Avatar

Cruisers Forum Supporter

Join Date: May 2007
Location: Singapore
Boat: Maxi 77 - Relax Lah!
Posts: 11,514
Images: 4
Yes - Different a/h ratings is OK.

While you are at it consider a 1-2-both switch and put the 55 a/h on as a the "start" battery and the 86's as the house.

We generally run our 3-battery system in the "all" mode but when we know we will be laid up for a weekend somewhere I switch to "2" (2 batterys) and know that even if we drain the house we will be able to start the donk in position 1.
__________________
Relax Lah! is For Sale <--- Click
Click--> Custom CF Google Search or CF Rules
You're gonna need a bigger boat... - Martin Brody
Ex-Calif 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
Adding a Second House Battery - Pitfalls? capkern Electrical: Batteries, Generators & Solar 8 21-07-2009 15:04
Adding 2nd Battery Bank captain465 Electrical: Batteries, Generators & Solar 6 09-07-2009 15:59
adding a battery Aquah0lic Electrical: Batteries, Generators & Solar 25 28-02-2009 02:32
adding reefs Jack Long Deck hardware: Rigging, Sails & Hoisting 5 09-10-2008 16:27
Adding new Trojans Islandmike Electrical: Batteries, Generators & Solar 4 29-12-2006 18:10



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 00:17.


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.