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KennaBruh
McNeese State Fan
Kenna, Brah
Member since Apr 2014
96 posts

boat battery testing?
I'll keep this short, but since I've upgraded my TM to an iPilot I don't get much life out of it...and yesterday none at all. I'll give more details if anyone is willing to help, but for now does anyone know if Autozone tests deep cycle/cranking marine batteries? They don't answer the phone and Google is no help.


farad
LSU Fan
Baton Rouge, LA
Member since Dec 2013
2289 posts

re: boat battery testing?
yes they can run a load test...


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diat150
Tulane Fan
OPELOUSAS
Member since Jun 2005
25790 posts
 Online 

re: boat battery testing?
you can pick up your own load tester for like $10 at harbor freight.


Geauxtiga
TBD Fan
No man's land
Member since Jan 2008
30553 posts

re: boat battery testing?
quote:

you can pick up your own load tester for like $10 at harbor freight.
Every fisherman should have one. Have a friend with an auto mechanic shop so Imusenhis but need to get one.

To the OP. it sure if you know how they test em but It's very easy.

Image: http://i.ebayimg.com/00/s/NzUwWDc1MA==/z/I-gAAOSwhQhYyBBw/$_35.JPG?set_id=880000500F


KennaBruh
McNeese State Fan
Kenna, Brah
Member since Apr 2014
96 posts

re: boat battery testing?
I've never used one. Would I disconnect all 3 batteries and test or leave them connected, put a load on them and check each battery?

Problem might be that I have 2 deep cycle batteries in series for a 24v trolling motor, plus other electronics connected to it. Not sure if it'll get an accurate reading from each 12v battery with a load on them.


Geauxtiga
TBD Fan
No man's land
Member since Jan 2008
30553 posts

re: boat battery testing?
Disconnect. Also, make sure they are fully charged.


Da Hammer
LSU Fan
Folsom
Member since May 2008
4698 posts
 Online 

re: boat battery testing?
If your batteries are over 3 years old probably need to be replaced. Load testers are easy to use however.


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Wtodd
Missouri Fan
Tampa, FL
Member since Oct 2013
25224 posts

re: boat battery testing?
Here is the answer......it's the ONLY answer......something I wished I had done 3 or 4 years earlier.........Minn Kota Precision Battery Charger.....pick the one for your application (based on number of batts)......I bought mine online at Hodges Marine.

You're welcome.

ETA: I never have charging issues any longer.
This post was edited on 8/1 at 6:46 am


double d
Amarillo by morning
Member since Jun 2004
12766 posts

re: boat battery testing?
My son is trouble shooting troll motor issue too. Plugged the charger in all day Saturday. Sunday unplugged it and pushed the battery power button on the top of the motor, all 4 lights lit up bright red (fully charged), turned handle to test and nothing. I told him bring the thing back to the dealer to check since it's under a year old. I hate that the boat came with the troll motor wired direct to the batteries, no plug on bow.


Wtodd
Missouri Fan
Tampa, FL
Member since Oct 2013
25224 posts

re: boat battery testing?
quote:

no plug on bow.

I'd hate that too.

Does he have a Perko switch?


WHODAT514
New Orleans Saints Fan
Livingston
Member since Mar 2012
1542 posts

re: boat battery testing?
quote:

plus other electronics connected to it


That's part of the problem. nothing besides the trolling motor should be hooked to the trolling batteries. all other electronics should be on a fuse block to the cranking battery or a house battery.

Like others said if they are 3 years old they are probably shot. Rewire to where there is nothing on the trolling batteries but trolling motor and get a very good charger. You should have no worries after that


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20
choupic
LSU Fan
Somewhere on da bayou
Member since Nov 2009
1476 posts

re: boat battery testing?
quote:

quote: no plug on bow. I'd hate that too.


I like it hard wired to the battery. One less thing to go wrong on the boat.


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02
double d
Amarillo by morning
Member since Jun 2004
12766 posts

re: boat battery testing?
No perko. I think he hit it on the dock or something but he won't admit it. Said it worked fine last week.


Timmayy
LSU Fan
Baton rouge
Member since Mar 2016
769 posts

re: boat battery testing?
Just put a voltmeter across. If it's got 12 24 or 36 It ain't the battery


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Wtodd
Missouri Fan
Tampa, FL
Member since Oct 2013
25224 posts

re: boat battery testing?
quote:

Said it worked fine last week.

Story of my life......"I don't know how it happened" or "I don't know who broke it" or "I don't know"


double d
Amarillo by morning
Member since Jun 2004
12766 posts

re: boat battery testing?
So true! It's his boat, but I gave him some money to put down so he could get it and helped him with a few notes when he was short but I'm not fixing everything he breaks. I use it now and then but before I do I check fluids, batteries, tires on trailer etc. He just hooks up goes and doesn't clean it or bother to put the cover back on.


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Geauxtiga
TBD Fan
No man's land
Member since Jan 2008
30553 posts

re: boat battery testing?
quote:

Story of my life......"I don't know how it happened" or "I don't know who broke it" or "I don't know"
Glad to know it's not just at my house.


Wtodd
Missouri Fan
Tampa, FL
Member since Oct 2013
25224 posts

re: boat battery testing?
quote:

Glad to know it's not just at my house.

I sarcastically tell my wife & son "don't look at it bc it WILL break and I KNOW no one here breaks shit"


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dawg23
Mississippi St. Fan
Baton Rouge, La
Member since Jul 2011
3490 posts

re: boat battery testing?
quote:

you can pick up your own load tester for like $10 at harbor freight.
Those cheap load testers can be very unreliable -- as are the ones that are used at places like Autozone.

The best local (Baton Rouge) source for testing batteries is Interstate Batteries on Airline (near Siegen).

Disclaimer: I have no financial, or any other, affiliation with Interstate Battery. But I do trust them, and have used them to check company marine batteries and personal marine batteries. Their test results were different enough from Autozone & Advance Auto Parts that we now only use Interstate.

Also - their battery prices are good, and you get "fresh" batteries.

eta: To curreckt my por speling.
This post was edited on 8/2 at 12:21 pm


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