Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 12-10-2012, 05:08   #16
Moderator
 
Dockhead's Avatar

Cruisers Forum Supporter

Join Date: Mar 2009
Location: Cowes (Winter), Baltic (Summer) (the boat!); somewhere in the air (me!)
Boat: Cutter-Rigged Moody 54
Posts: 19,737
Re: Battery Conductance Tester

I have one of these -- I forgot the make, but it's a fairly expensive professional one. I like it.

Forget about the CCA numbers -- you don't need them. That's only needed for the device to calculate a % of full capacity, something you can do yourself better by starting to test the batteries when new (or test a new example of your type of battery).

Anyway you're going to care much more about consistency between cells and batteries, than about the absolute numbers, and your device will give you data to do that without entering any CCA or AH information. Just skip those steps.

Edit: My tester is one of these: http://www.argusanalyzers.com/batter...analyzers.html
__________________

__________________
Dockhead is online now   Reply With Quote
Old 12-10-2012, 05:27   #17
Marine Service Provider
 
Maine Sail's Avatar

Join Date: Jan 2007
Location: Maine
Boat: CS-36T - Cupecoy
Posts: 3,060
Re: Battery Conductance Tester

Quote:
Originally Posted by HopCar View Post
I used one of these for a couple of years until one of my customers bought it off me.Features:
If I am not mistaken that unit is a Midtronics MDX-640, or similar, analyzer relabeled for Newmar. You're likely to find the same analyzer in a Midtronics for less $$$..

As has been said you don't need the CCA to test the batteries. However without testing them when new, using the same analyzer, and in their current condition, you won't really have a baseline to work from.

Tell us what the batteries are and one of us may have the CCA rating for them when new...


MDX-640 (Image courtesy Midtronics)
__________________

__________________
Marine How To Articles
Maine Sail is offline   Reply With Quote
Old 12-10-2012, 15:02   #18
Registered User

Join Date: Jan 2012
Posts: 101
Talking Re: Battery Conductance Tester

I'll have to check them out monday. they're sealed acid eight, 6v batteries in series parallel. If you use the tester without using a cca with it tell you if a cell is bad. What happened is my inverter went to float mode but was still putting out 70 amps. Two of the 6volts batteries,connected in series, where so hot you couldn't hardly touch them. I went and borrowed a series 31
12v battery and hooked it up to the inverter by itself and the inverter worked perfect. I would think that those two batteries would have to be bad, but don't want to rely on just a load test on the other six. These testers seem a little expensive so i might just take the two hot batteries out of the equation, and load test the other six and hook the inverter back up.
__________________
tuberider is offline   Reply With Quote
Old 12-10-2012, 16:11   #19
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
Re: Battery Conductance Tester

For the record, there is no relationship between CCA and Ahr capacity.

For the OP, if the batteries were "...you couldn't hardly touch them.", they have failed internally, probably by shorting between cells. They have become very inefficient heaters, are dangerous and should be immediately removed and properly discarded. Load test the other batteries with a simple carbon pile (Harbor Freight) tester to see if they have any useful life left.
__________________
Charlie Johnson
JTB Marine Corporation
"The Devil is in the details and so is salvation."
CharlieJ is offline   Reply With Quote
Old 12-10-2012, 16:33   #20
Registered User
 
mbianka's Avatar

Join Date: Mar 2008
Posts: 2,125
Images: 1
Re: Battery Conductance Tester

I used a Centech Battery tester and a filament load tester when I found one of my sealed AGM batteries was not completing a charge:
THE BIANKA LOG BLOG: BATTERY INVESTIGATION PART 8: LOAD TESTING
Glad I did not pitch it out like most people would do. After removing a parasitic load the battery it came back to life quite nicely after a few charges.
__________________

__________________
Capt. Mike
mbianka 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
Golf cart batteries foggysail Electrical: Batteries, Generators & Solar 112 28-06-2017 00:28
Correct Bowthruster Battery System Sulaire Electrical: Batteries, Generators & Solar 16 14-02-2012 15:27
My Battery Keeps Fizzing antoche Electrical: Batteries, Generators & Solar 6 21-11-2011 04:07
Xantrex Link Pro Sailagain Electrical: Batteries, Generators & Solar 52 19-11-2011 18:54
Battery Testing Methods Dockhead Electrical: Batteries, Generators & Solar 12 28-08-2011 09:08



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 21:42.


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.